Seller Note “Untested”
Pre Checks / Multimeter Only
| 1. Visual Inspection Eye / Magnifying Glass | Quite dirty. | |
| 2. Visual Inspection Microscope | – | |
| 3. Check for shorts on 12v PCI, 12v PCI-E, 3.3v | OK | Couldn’t find any obvious shorts. |
| 4a. Resistance VCore (~0.5) | 2.5Ω | |
| 4b. Resistance VMem (~60Ω) | 97.6Ω | OK |
| 4c. Resistance 3.3v Rail (~960Ω+) | Ω | |
| 4d. Resistance 5v Rail (~5KΩ) | ||
| 4e. Resistance 1v PEX Rail (~123Ω+) | 180Ω | OK |
| 4f. Resistance 12v BUS (14.7kΩ ) | ||
| 4g. Resistance 8.8v Rail (18.7KΩ ) | N/A |
Power On / Test Rig Checks
| Tests / Checks | Result | Notes |
|---|---|---|
| 1. Observations (e.g. PCB heat noticed, blank screen, power light on monitor, bios screen, o/s loaded, artefacts, ) | Have BIOS picture. Blank screen on driver / windows load. Area behind GPU quite hot, a despite quite large heatsink it is necessary to run the fan to avoid a very hot GPU after several minutes. Passed MATS memory test. | |
| 2. Voltage VCore (~0.88v) | 0.9+ OK | |
| 3. Voltage VMem (~1.4v) | 1.5 OK | |
| 4. Voltage PEX Rail (~1v) | OK | |
| 5. Voltage 3.3 BUS | OK | |
| 6. Voltage 12 Ext | OK | |
| 6. Voltage 5v Rail | OK | |
| 7. Voltage 8.8v Rail | – | – |
Next Steps
- Resistances and voltages seem fine, although worth checking voltages more closely in case of power stage issue.
- BIOS screen fine, no artefacting seen, passed memory test, cannot load driver – possible GPU issue.
- Hot behind GPU – Will repaste.
- GPU is GF116-400-A1
- Memory is Hynix 2 different codes
Update: After cleaning and repasting, now there is no picture! All voltage appear present and the GPU area gets pretty hot. I am starting to think this is probably a GPU issue, possible reflow / replace candidate. The card was not expensive and it’s resale value isn’t likely to be much even if fixed. I also don’t think this is a particularly great type of graphics card i.e. doesn’t seem much better than a GTS 450 and doesn’t have great thermals.
Update: A day later, the card seems to display the BIOS screen reliably, attempting to boot windows results in black screen and reboot. I have rechecked the voltages, which seem ok. If the card is fine from a power delivery perspective (not 100% sure) and the memory is ok (test passed), then the GPU seems the main suspect.
Update (10/01/2022) after reflow of all memory chips: Now the card can load to windows, but crashes on driver load. Replacement or reballing of the memory chips is the next option:
4 x h5gq1h24bfr-t2c 132a
2 x h5gq2h24mfr-t2c 133a