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					Test Report No.:                   30783046.004                                         Page 1of 5


Client:                            MDG Computers Canada Inc.
                                   2940 Bristol Circle, Oakville, Ontario L6H 6G4 CANADA

Test Object:                       Desktop computer, “Small Form Factor”

Model No.:                         Gx6850i; Gx6750i                 Trademark:           -


Sample Ref. No.:                   -                                Serial No.:          prototype


Test Date and Location:            2007-10-26 TUV Rheinland Canada Inc., 1200 Sheppard Ave. East,
                                   Suite 204, Toronto, ON, Canada M2K 2S5
Test Standard:         ISO 7779:1999 Acoustics - Measurement of airborne noise emitted by
                       information technology and telecommunications equipment
                       ISO 3744:1994 Acoustics – Determination of sound power levels of noise
                       sources using sound pressure – Engineering method in an essentially free field
                       over a reflecting plane
                       ISO 9296:1988 Acoustics – Declared noise emission values of computer and
                       business equipment
Test Result:            The test object described above       passed      ;    failed        ;   N/A


Tested by:                                            Reviewed by:
2007-10-29 S. Kraemer                                 2007-10-29   P. Morton

_____________________________________________         ___________________________________________________
Date                 Name             Signature           Date              Name                Signature

Other Aspects:        A-weighted sound power levels were determined according to clause 7 of ISO
                      7779:1999 from measurements of A-weighted sound pressure levels in
                      accordance with ISO 3744:1994. Declared noise emission values were evaluated
                      according to ISO 9296:1988

                      The declared A-weighted sound power levels were compared with the limits given
                      in the NMSO* specification section 7.0 (f) (i) as required by the client.
                      (* Canadian Federal Government National Master Standing Order)

                      The highest power model of a series was tested.

                      Attachment 1: Photographs



This test report only refers to the test sample described above and may not be duplicated in part without
the express permission of the Testing Centre. This test report does not permit the use of a test mark.
TEST REPORT NO.: 30783046.004              PAGE 2 OF 5




 1. INSTRUMENTATION

           Measurement Equipment                          Serial no.      Next calibration

Sound level meter: Bruel and Kjaer model 2236              2100721            2007-11-09
Calibrator : Bruel and Kjaer model 4231                    2130900            2007-11-09



 2. TECHNICAL DATA

 Description of test object         : Desktop computer, model number Gx6850i (tested);
                                      Gx6750i (not tested, represented by Gx6850i)

 Rated voltage and frequency        : AC100-240V 50/60Hz



 3. TEST ENVIRONMENT

 Description and dimensions         : Hemi-anechoic chamber, 8m X 4m X 4m high

 Environmental correction K1        :   0 dB



 4. ATMOSPHERIC CONDITIONS

 Air temperature                    :    25 °C
 Barometric pressure                :   100.4 kPa
 Relative humidity                  :    52%
 Wind velocity                      :    not applicable



 5. BACKGROUND NOISE

 Background sound level             :   24 dB(A)
 Background noise correction K2     :   0 dB



 6. INSTALLATION AND OPERATING CONDITIONS

 Description of placement and operating conditions: The equipment was placed on the floor in
 the centre of the test chamber and operated under idling and operating (hard disk drive
 accessing) conditions as required by the specification.
TEST REPORT NO.: 30783046.004            PAGE 3 OF 5




 7. MEASUREMENT SURFACE AND MICROPHONE POSITIONS

 10 microphone positions were located on the hemispherical measurement surface according
  to ISO 3744:1994 annex B.1, with radius r = 0.5 m. The small radius was chosen because of
  the low sound pressure levels to be measured.

                     COORDINATES OF MICROPHONE POSITIONS 1 - 10
                                     [r = 0.5m]


   Measuring point               x/r                      y/r                    z/r

          1                     -0,99                     0                     0,15
          2                     0,50                    -0,86                   0,15
          3                     0,50                    0,86                    0,15
          4                     -0,45                   0,77                    0,45
          5                     -0,45                   -0,77                   0,45
          6                     0,89                      0                     0,45
          7                     -0,33                   0,57                    0,75
          8                     -0,66                     0                     0,75
          9                     0,33                    -0,57                   0,75
         10                       0                       0                      1,0
TEST REPORT NO.: 30783046.004         PAGE 4 OF 5




                     Figure 1. Microphone array on the hemisphere
TEST REPORT NO.: 30783046.004                         PAGE 5 OF 5




 8. TEST RESULTS

                                                Sound pressure level [dB(A)]
                                                      Microphone position
Condition      1          2    3          4       5          6          7      8      9      10                   __
                                                                                                     Surface avg. L’p

Idling       35.8     35.5    35.0       31.2    34.0       34.4       33.2   31.3   33.6    30.3          33.8
Operating    38.4     38.2    36.8       33.9    37.0       37.0       34.8   34.6   36.3    34.3          36.4
Measurement radius r = 0.5m
Measuring surface area, S = 1.6m2

 Condition   Surface __       Correction         Correction            Surface sound __      10 log       Sound
             average L’p          K1                 K2                pressure level LpA    (S/S0)     power level
                                                                                                         LWA [dB]

Idling             33.8              0                  0                     33.8             2.0          35.8
Operating          36.4              0                  0                     36.4             2.0          38.4



 9. EVALUATION OF DECLARED SOUND POWER LEVEL

 The declared A-weighted sound power level in bels is defined in ISO 9296:1988 as:

              LWAd = 1/10 (LWA + K) [B]

  where K accounts for measurement uncertainties and production variations. Since only one
  sample (representative of a production batch) was submitted, K was estimated from values of
  measurement uncertainty and production variation typical of computer equipment.

  For a sample standard deviation of reproducibility SR = 1.5 dB and a sample standard
  deviation of production Sp = 2.0 dB, the value of K calculated from ISO 9296:1988 is K = 3.5 dB.
  The declared sound power levels for idling and operating modes are obtained by adding K to
  the sound power levels determined above with the following results:


              Sound power                 K             Declared A-            NMSA-specified             Result
                level LWA                [dB]         weighted sound           upper limit value
                   [dB]                               power level LWAd            LWAd [B]
                                                            [B]

Idling              35.8                 3.5                     3.9                   4.5                 Pass
Operating           38.4                 3.5                     4.2                   4.8                 Pass




                                          END OF TEST REPORT