VIEWS: 37 PAGES: 36 CATEGORY: Hardware POSTED ON: 8/23/2011
Overclocking motherboard supports the heavy load case will automatically occur automatically overclocking the sake of overclocking.
Overclocking your Graphics card and more revealed 1 Overclocking your Graphics card and more revealed WARNING! (Boring bit) WARNING: Overclocking can in worst case scenario, damage your equipment. Overclocking wares down the hardware and the life-expectancy of the entire computer will be lowered if you overclock. If you attempt to overclock, I will not be responsible for anything broken or damaged when using this book. This book is merely for those who accept the possible outcomes of this overclocking guide and overclocking in general. However, there lots of fun to be had and if done safely, can boost the performance of your processor no end. I believe the positives out way the negatives and would recommend it to anybody. This ebook CAN NOT be resold on and is only available from James Scholes. Anyone selling this book will face prosecution. Please note! This is an on going project. I am open to any suggestions you have to make this ebook the best I possibly can. If you think there is anything missing or just needs adding, contact me and I'll add it to the book and send you a new copy. Thank you for the your purchase! If you would like to see my premium books I have to offer CLICK HERE 2 Overclocking your Graphics card and more revealed Table of contents Introduction What is Overclocking? Why Overclock your graphics card? Is overclocking your graphic card dangerous? Is overclocking difficult? Correct Overclocking - The Goals Throttling Overclocking with Rivatuner Controlling the fan Unlocking pipelines D3Doverrider Setting graphics options Flashing the Bios Using Nibitor Overclocking the stream processors using Nibitor Summary My personnel Recommendations 3 Overclocking your Graphics card and more revealed Introduction Hi, my name is James Scholes. I would first of all like to thank you for buying my ebook and hope you enjoy reading it as much as I did writing it. If your a regular reader of ebooks or enjoyed what you read here please find some time to visit my online store at www.book-worm.org.uk. I have a diverse collection of books at very reasonable prices. Anyway thanks again for purchasing my book. If you would like to leave a testimony or any comments or questions please do not hesitate do so. To do so visit my site at www.book-worm.org.uk and go to contacts. Just one more thing before we get started. to get maximum enjoyment out of this ebook, I would thoroughly recommend been connected to the internet while reading. This is because I'll be pointing you to different sites along the the way, this will help me give additional information and show you examples of what I'm on about, there 's nothing worst than somebody waffling on and not understanding what the hell their on about. Besides, what's the point of reading an ebook and not using it to it's fullest potential? Overclocking your CPU to the EXTREME! At Time of writing, I have another book out called Overclocking your CPU to the EXTREME! This will teach you everything you need to know about overclocking your CPU and more. It's a quite a in-depth book with all the secrets revealed that the benchmarkers use in 3DMark to reach the highest scores possible. For more information visit my website or jump straight to it here. Anyway, go put the kettle on, make a nice cup of tea and lets crack on... 4 Overclocking your Graphics card and more revealed What is Overclocking? Overclocking involves changing your computer system hardware settings to work at a faster speed than the manufacturer's rating. They have tested the capabilities of the part and certified it for that given speed. Of course, most parts are underrated for increased reliability. Overclocking a part simply takes advantage of the remaining potential out of a computer part that the manufacturer is unwilling to certify the part for but it is capable of. 5 Overclocking your Graphics card and more revealed Why Overclock your graphics card? The primary benefit of overclocking is additional computer performance without the increased cost. Most individuals who overclock their system either want to try and produce the fastest desktop system possible or to extend their computer power on a limited budget. In some cases, individuals are able to boost their system performance 25% or more! For example, a person may buy something like an 7900 GTO and through careful overclocking and unlocking some pipelines (I'll show you how to do all this later) end up with a graphics card that runs at the equivalent processing power as a 7900 GTX, but at a greatly reduced cost. There are also those that just like the hobby aspect of overclocking, these are the people who push there machine to the limits and then some. Then there are people who like me are drawn to overclocking by both of these mentioned reasons 6 Overclocking your Graphics card and more revealed Is overclocking your graphic card dangerous? There are drawbacks to overclocking a graphics card. The biggest drawback to overclocking a computer part is that you are voiding any warranty provided by the manufacturer because it is not running within its rated specification. Overclocked parts that are pushed to their limits also tend to have a reduced functional lifespan or even worse, if improperly done, can be destroyed completely. For that reason, I'll give you the pros and cons so you can way it up for yourself. This is the pros and cons of overclocking. Pros 1: Higher clock speeds and performance for less money 2: Capability to be running faster than any production card available 3: Bragging rights with your buddies 4: Fun way to tweak and personalize your system Cons 1: Graphics card will run at higher temperature 2: Need for more cooling 3: Possible system instability 4: Could permanently damage your graphics processor and render it useless 5: Will point out weak parts of system, which you will then be compelled to upgrade As you can see, there I more cons than there is pros. But if done right you can still do a safe overclock and not put your card at any risk what so ever. How far you push it is up to you. 7 Overclocking your Graphics card and more revealed Is overclocking difficult? Overclocking your graphics card is much easier than overclocking you CPU. This down to the fact that you don't have to get your hands dirty in Bios although you can overclock your CPU in Windows. There's none of that CMOSing your PC and rebooting everytime. Everything's explained in plain English, none of that jargon rubbish you get in Bios. At it's most simplest, all it'll involve two sliders, the higher you move them the higher clock frequencies. Can't get much simpler than that. However if you want a wealth of information on overclocking your CPU and how to push it as far as possible, click here There is more complicated techniques but don't worry. They'll all explained in pictured guides. 8 Overclocking your Graphics card and more revealed Correct Overclocking - The Goals First and foremost, we want to improve overall system performance. Also, we want the system to be just as stable as it was before it was overclocked. Finally, we want to keep our machines alive. So the higher we clock the graphics card, the more unstable it becomes. One way around this is buying an improved cooler. The ones packaged with the card are OK, however if you'll after hitting the higher frequencies try XPC GEAR the prices are good and they have sales on now and then. One word of warning though, not all coolers fit all the cards so make sure get the right model for your graphics card. 9 Overclocking your Graphics card and more revealed Throttling Just a word of warning, Nvidia uses something called 'thermal throttling' in there brand of GPU. This is to stop them from being damaged by excessive heat due to overclocking (or other circumstances), Nvidia's implementation of this feature tends to be a bit more sensitive than that found on ATI cards. It's rare to see artefacts or visual imperfections on a current or previous generation Nvidia card. This is because the video core will automatically slow itself down before a state stressful enough to cause video artefacts is reached. As readers might imagine, this feature makes determining the maximum overclock attainable by an Nvidia card more frustrating than it otherwise would be. When using Rivatuner to overclock an Nvidia graphics card, there is no indication that this throttling has been activated, so the only way to tell if you've pushed the card beyond its temperature limits is by noticing a decrease in benchmarking scores. If at x MHz the benchmark score increases as normal, but at x+5MHz it suddenly drops several hundred points, the thermal throttling has just kicked in. The frustration really sets in when trying to determine the precise point that the feature activates. Since the throttling is heat-triggered, it won't necessarily be the same value every time. However I've figured out how to turn it of but just remember its there for a reason. So take care if you choose to deactivate it. 10 Overclocking your Graphics card and more revealed Overclocking with Rivatuner there's plenty of overclocking utility on the internet, some work with ATI, some work on Nvidia and even less work with both. So I'll be using Rivatuner. I'll be using Rivatuner for a few reasons. These being: 1: Rivatuner works with both ATI and Nvidia which will make make my life a damn site easier 2: Rivatuner is completely free. Download it here. 3: Rivatuner is the most powerful overclocking tool there is on the internet, giving you access to a lot more than overclocking. With Rivatuner you have access to all the registry tweaks and enabling pipelines, although the latter is not always guaranteed As an application which enables customers to void their warranties, the Coolbits tweak is understandably limited. Nvidia does not want its customers toasting their graphics cards if it can be avoided. To get the best out of either ATI or Nvidia cards, it's essential to use a third- party overclocking utility and this is why Rivatuner is the weapon of choice for overclockers. Rivatuner is an easy to use utility that can overclock both company's cards with equal precision, and does not have the various complications that using the Coolbits tweak to overclock a video card can present. If your using any other overclocking program,open up the display settings and revert the video card's core and memory sliders to their default settings before proceeding further. Are you ready? Well let's begin 11 Overclocking your Graphics card and more revealed How to overclock with Rivatuner Right then start up Rivatuner and you'll be presented with this screen. Now that your in there go to customize Now a toolbar will appear, click on the icon pictured as a graphics card. Now a new window will appear called System tweaks. This is where you do all your overclocking from. At the top of the system tweaks windows there should be a box saying Enable driver-level hardware. Tick this box. Basically all this is saying is it's recommend to reboot your PC. I never bother and it seems to work fine for me, so just click on detect now. 12 Overclocking your Graphics card and more revealed Once Detect now is pressed, make sure that you have performance 3D mode selected (it's right next to Enable driver-level hardware) There will be two sliders, the top one is for the graphics core and the next one below is for the memory Current graphics core speed Maximum Graphics core speed Current memory speed Maximum memory speed As you can see it's quite simple once you get your head around it. Now it's just a case of overclocking. The best way of doing this is though is focusing on one slider and see how far you can take it without no artefacts showing . To stress 13 Overclocking your Graphics card and more revealed test it I recommend to two things 1:3DMark This one is the best as far as I'm concerned, for benchmarking anyway. It tests your CPU as well as your graphics card all you after do is watch the demo play through and watch out for any artefacts. All artefacts look like are glitches and polygons flashing different colours, if you see these this means that your graphics cards working too hard and as a result getting too hot. If you see these artefacts no matter how small or insignificant, always decrease the clock settings. The reason for this is because I've known case's where people have done this and thought that they could live with the artefacts because there wasn't that bad at the time however your graphics card is working too hard and those little glitches that wasn't much of a problem before, gradually become a bigger problem the longer you leave it clocked at that setting and eventually resulting in a dead card. Your card is working just above it's safe working temperature so therefore slowly cooking away and this is why your better to decrease the clock setting. 2: Testing while you play This is more demanding than 3DMark. What doesn't show up in 3DMark will definitely show up in your games. This is more demanding because it doesn't follow a set routine like 3DMark, always keeping your graphics card guessing. It's definitely the more fun way of the two anyway. 14 Overclocking your Graphics card and more revealed Once you overclocked, you must click on test and if it passes, click on apply. Clicking on test does not mean that it's stable so remember to benchmark for each adjustments Once you done the above, I would recommend you to tick this box (I'm afraid you can't see it because the testing new setting window is in the way) What this does is save your settings and starts up when you boot you again. Just to let you Know, When you actually start to overclock, the best way is to overclock in small segments. I'd would recommend to start of with the graphic core just because it's at the top and move the slider by 5 cycles. Then benchmark and test for stability. If everything looks fine, move it another 5 cycles. Repeat till you reach it's ceiling then do the same with the memory core. 15 Overclocking your Graphics card and more revealed Controlling the fan Another way of squeezing extra performance for absolutely nothing is turning up the fan. However it comes at a small cost and that my friend is noise. Now some people wouldn't be bothered but but some cards are notorious for there noise for example the X1900XTX is already a noisy bleeder but if you turn the fan speed up to reach those higher notes, you better have some ear defenders Knocking about! This doesn't apply to all cards but the general rule of the thumb is the faster they spin the noisier they are. If your after an improved cooler I 'd recommend Cooling Accelero X1 VGA Video Card Cooler It has a large fan and a good heatsink. If your after one you can pick one up XPC GEAR Anyway to access the fan controls, Go back to System tweaks (where you overclocked your card) and go to the second tab along called fan and click to enter As you can see it works in a similar way to the overclocking section above. You have the sliders and you can save your new settings so they'll start up when you reboot. You only need to move one slider though and that's the performance 3D slider. Obviously the higher you move the slider the faster (and noisier) the fan will spin. Then tick the box and save. 16 Overclocking your Graphics card and more revealed Unlocking pipelines In the manufacturing stage of making graphics cards not all pass with flying colours. Over time these faulty one will be rebranded as weaker one's of the superior one they were originally meant to be. On the actual chip it self they have something called pipelines, quad and vertex shaders however on DX10 upwards, they use stream processors but work the same way none the less. For this example I will call all these just pipelines to lesson confusion. Like I just said above these can be damaged or just disabled to produce a cheaper range of cards. You can gauge a strength of a graphics card by the amount of pipelines or stream processors it has. So the very fact that you can open up these pipelines is a big bonus indeed. It's not guaranteed but Here's how.... Go to the top customize and then click on low level tweaks 17 Overclocking your Graphics card and more revealed Press Nvstrap driver tab. Now what you need to do is Active pixel/vertex unit configuration and put it to custom. Then tick the Allow enabling hardware masked units box. Then click on customize. Now you'll enter Custom graphics processor configuration. If you got anything locked it will show up under HW masked as yes. Unfortunately my card hasn't any locked. If you do have any locked all you do is simply tick that column. 18 Overclocking your Graphics card and more revealed Please be aware that you won't see pipelines as individual pipelines. They will be grouped as quads which is a group of 4 pipelines and so enabling one quad, will enable 4 pipelines. If you do have any pipelines or what ever they are, they will appear as yes under HW mask Tick here to activate Now hit OK on all the windows that are open in Rivatuner. A message box will come up telling you that you need to restart your computer. Click yes, and restart. 19 Overclocking your Graphics card and more revealed Once you are back into windows, load up Rivatuner to check that the settings were applied correctly. They will appear here. Now run something like 3DMark '06 and some games you own to test for artefacts. If you don't see any artefacts, congratulations - the unlocking process was totally successful. If you do see them - read on. First of all, don't panic if you do see artefacts! After all, this card wasn't meant to use the bits you've just unlocked, and every so often something won't work. Its just a simple case of going and putting things back how they were. It may also only be that the quad is damaged and not the vertex shader, or vice- versa, so follow the instructions above and try enabling one at a time and see if the problem is fixed. If you still get artefacts in every combination, you need to go back to the cards original settings. The easiest way to do this is to go to the NVSTRAP screen and click "Uninstall". Once you click OK and restart, the card will be back to its stock state - unfortunately, both the quad and vertex shader are damaged on your card, but hey - they were locked in the first place, right!? 20 Overclocking your Graphics card and more revealed D3DOverrider When activated, any Direct3D game you launch. D3Doverrider will automatically have Triple Buffering force-enabled. What this boils down to is an increase in framerates from 10% to 20% and all you after do is turn it on! How D3Doverrider works is when VSYNC is enabled which synchronizes your graphics card with the monitor's refresh rate (the number of times a new frame is displayed on the screen). But the problem is sometimes your graphics card can't keep up, the game's framerates drops, and you get chunky game play. Triple Buffering adds an extra buffer - breathing room - for your graphics card to catch up. Unfortunately, up until now, you couldn't use this feature with DirectX games unless the game had enabled it - and most have not. Your 3D experience should be 10% to 20% smoother with this utility. Problems with Triple Buffering It may seem odd that if Triple Buffering resolves the problem of low framerates when VSync is enabled, it doesn't appear as a standard option in many games, or in the Direct3D-related settings of the Nvidia or ATI graphics control panel. There are three main concerns that appear to be the reason behind this: 1. If it is not properly supported by the game in question, it can cause visual glitches. Just as tearing is a visual glitch caused by information being transferred too fast in the buffers for the monitor to keep up, so too in theory, can triple buffering cause visual anomalies, due to game timing issues for example. 2. It uses additional Video RAM, and hence can result in problems for those with less VRAM on-board their graphics card. This is particularly true for people who also want to use very high resolutions with high quality textures and additional effects like Antialiasing and Anisotropic Filtering, since this takes up even more VRAM for each frame. Enabling Triple Buffering on a card without sufficient VRAM results in things like additional hitching (slight pauses) when new textures are being swapped into and out of VRAM as you move into new areas of a game. You may even get an overall performance drop due to the extra processing on the graphics card for the extra Tertiary buffer. 3. It can introduce control lag. This is because there is now an additional 21 Overclocking your Graphics card and more revealed frame which is being buffered in advance of being displayed, and hence a greater likelihood that this third frame gets to the screen a fraction slower than your input. This manifests itself as a noticeable lag between when you issue a command to your PC and the effects of it being shown on screen. However it appears that most recent graphics cards and most new games will not experience major problems by enabling Triple Buffering. Given the fact that it can help to both remove tearing while also preventing the significant FPS drop encountered when VSync is enabled, it is at least worth trying for yourself to see the results on your system. To activate D3DOverrider, go to start from desktop and go to programs and select Rivatuner v2.0 Final Release. Then select D3dOverrider Now it should appear in the system tray as a green X Now left click on the icon and select set-up and the D3DOverrider menu will appear. 22 Overclocking your Graphics card and more revealed As you can see from above,tick everything off and if you want D3Doverrider to start up when you boot Windows up, tick the top box which I'd would recommend anyway. The only problem you may have is the Enable load library hooking. If you do just untick it. 23 Overclocking your Graphics card and more revealed Setting graphics options There's two type of games in this world, OpenGL and Direct3D games. All these are, are game engines that programmers use to build there games. Although they do the same thing, they do give different results For example Half life 2 and Far cry uses Direct3D and ID Software (and others) use OpenGL for there games like Doom 3 and the Quake series. The reason why you may want to alter these options is because you can get more performance the more you lower them. Some of them you wouldn't even notice if you knocked it down a notch like Antialiasing. To get there, go to the second customize and the two highlighted are (in order) DirectX and OpenGL. Now some options are unique to Direct3D, some are unique to OpenGL and some are shared between them. I'm not going into detail of what does what but basically you'll have setting like minim to maxim and performance to quality in a some form of a slider of some form or other. I think you'll notice that even if you turn down some graphics settings you wouldn't even notice they was missing but getting a performance boost at the same time. It's a case of trial and error and this is completely safe aswell. 24 Overclocking your Graphics card and more revealed Flashing the Bios Like CPU's, graphics cards have there own bios. Card manufacturer's use these to access there speed and voltage settings so when you go out and buy one of there cards you may notice that there speed of there cards might run faster than other cards by default. For example there could be two cards on the shelf, identical specification wise. However one might have a better cooler than the other and therefore it can overclock further than the other. But if you put the cooler on the other card, there's a good chance it'll not overclock as far as the other. This is because the manufacturer has changed the voltage settings in the card's Bios. As you probably figured out by now that changing the voltage in Bios is one of the perks of flashing the Bios as it's known. Although a lot of times, you won't need to higher the voltage if your using the cooler that the card came with. But if your using a superior cooler or water cooling you'll need to start thinking about highering the voltage to reach higher overclocks. To do this you'll need to download a couple of programs. Don't worry there completely free. The first one is NiBiTor. Nibitor is the actual program used for changing your bios. Like Rivatuner it can seem quite complicated but once you've got the hang of it, it shouldn't present any problem. Download here. Nvflash. All Nvflash does is make Nibitor work really. you'll see how soon enough. Download here. 25 Overclocking your Graphics card and more revealed Using Nibitor Now that you've downloaded them, this how you do it. First of all boot up Nibitor then go to tools, read Bios and select device. This window should appear. If the name of your card shows up, Nibitor has successfully read your card's Bios. Click OK. Now go back to tools, read Bios again then read into Nibitor 26 Overclocking your Graphics card and more revealed you should see all your cards details appear in the box below. Please note that if your card is overclocked, it will not display those clock settings. This is for flashing the Bios not for overclocking. Nibitor will always show the card's default settings. You can overclock with Nibitor but what I'd recommend is overclock with Rivatuner, find the highest, most stable settings then change them in Nibitor. Plus when you come to selling your card and providing it's stable, you can sell it at that speed making a bit more on top. Anyway the first thing you do is save your default Bios setting. Just in case if something wrong happens we'll always have a back up to fall back on. To do this, go back to the top of Nibitor, go to file and save Bios. 27 Overclocking your Graphics card and more revealed For mine I've called mine default.rom, call yours whatever you like. Then click save Now we're ready to change your card's Bios. For changing your clock settings it really easy to do all you do is go to clockrates and change the settings to what you like really and that's about it on that. 28 Overclocking your Graphics card and more revealed Most people will only have core and memory to change. Shaders only appear for DX10 users. The next tab along is voltage. When you click on it, it will present a warning screen. Now I would deeply recommend to seriously think about this. I wouldn't do this with the default cooler because that will most likely only be able to deal with the amount heat that the voltage is set at. If you do consider turning up the voltage I'd would consider upgrading to a water cooling kit for your graphics card. There not as expensive as you may think, try XPC GEAR for some good water cooling kits. You could even cool your entire system with a water loop. 29 Overclocking your Graphics card and more revealed As you can see my card is already running on the highest voltage as default. So what we do now is go tools and then voltage table editor. Now remember that your settings maybe different to mine so alter them to suite your needs. For example your voltage maybe 1.1V so you wouldn't jump to 1.4 like I have. Always higher your voltage in tiny segments, if you jump to high you'll kill your card so take care. 30 Overclocking your Graphics card and more revealed Ignore all those zeros and numbers Now using the image above, change the amount of active entries to 4. Then entry 4: will open up. Change label to what you want your next voltage option to be. I've changed mine to 1.4V. Then change the vid to 3. Once you've done that press OK. Now going back to the voltage tab, select exact mode and your new voltage option should appear. 31 Overclocking your Graphics card and more revealed Now that you've chosen your settings you will have save them. Go where you went to save your default Bios now it's time to flash your card with you new bios settings. To do this you'll need a bootable floppy or you make a bootable CD/DVD using Nero. For those who hasn't got Nero, you can download a thirty 30 day trial here 32 Overclocking your Graphics card and more revealed Now I'll be using my trusty floppy (I know I know, I just can't let it go) Next copy Nvflash and your modified bios to the floppy. Make sure your bootable floppy is inserted and reboot your machine. Boot to the bootable floppy. At the prompt type: a:\nvflash voltmod.rom (or what ever you named your bios file). Press Y and the bios will be flashed. (There is no need to backup your bios at this point. You have already saved your default bios in Nibitor. You’ve done it. Remove the floppy or CD and reboot into Windows normally. You can now open Nibitor and read the bios from your card to make sure it flashed. Make sure you check your temps. You will want to compare them to your temps before the mod. Now you can see how far you can overclock. If your temps are fine under load and you want a little more voltage, repeat the process and step up another .1 volts. There is other options but there quite easy to figure out. A bit like Rivatuner but your doing it in Bios. 33 Overclocking your Graphics card and more revealed Overclocking the stream processors using Nibitor Stream processor can only found on the new 8800 and upwards range of graphics cards. At time of writing this is the only way to overclock them. To do this, you first need to make Nibitor to read your card's Bios information. I've have shown you how to do this in the last chapter (Using Nibitor) Once you done that you'll be taken back to the main screen As you can see I've highlighted the shader options and all you after do is simply change it to what you want. Once you've done that save it and flash the Bios (find out how in Using Nibitor) 34 Overclocking your Graphics card and more revealed My personnel Recommendations Here are a selection ebooks and programs to help you optimize your PC even further and come highly recommended. Enjoy. Overclocking your CPU to the EXTREME! Everything you need to Know about overclocking your CPU and more. Learn the techniques the professionals use on 3DMark to reach the highest overclocks possible. For more information click here. Bookworm Visit Bookworm for all the best ebooks around. Click here XPC GEAR For the best overclocking gear, visit Xtreme PC gear. They seem to be really cheap and throw sale now and then. Brilliant for fan heatsinks for CPU's and graphics cards. Click here to visit. AlienWare If you want to buy a monster PC that'll blow anything out of the water, try Alienware. Alienware super powerful PC's that look dead stylist aswell. For more information click here. Mem agent Brilliant little tool for optimizing Windows, Making it running smoother, faster and miles more stable! Remember, when your overclocking your system it's just as important to have Windows running at it's peak. For more information click here. OptimizeXP Learn how Windows ticks by reading OptimizeXP. Like Mem agent but learn how to do it yourself. For more information click here. Double The Speed Of Your Pc! Top Pc Speed Tweaks For Boosting Your Ram, Cpu Speed, Internet Connection, Modem, Cable, Dsl, Memory And Much More. For more information click here. Beginners Computer Tutorial Everyone wants to know how to build a PC and now you can with this easy to 35 Overclocking your Graphics card and more revealed follow ebook. For more information click here. How to earn a living from being a games tester This is no lie! Read this amazing book to learn how to make a living from playing video games. For more information click here. Find A Job Testing Video Games Life changing book about on how to earn a living playing video games all day. A must read! For more information click here 36
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