Toughpower W0103 and Nvidia 8800 GT

[romaroma4]

My personal computer configuration is:
Intel Core 2 Quad Q6600@2,4Ghz
Motherboard Gigabyte P35-DS3P
2x2GB RAM DDR2 800Mhz Team Elite
2xHard disk Western Digital WD5000AAKS
1xDvd Recorder LG GSA-H62N
1xSparkle 8800 GT 512MB DDR3
Case Thermaltake Soprano
Power Unit Thermaltake Toughpower W0103

I have assembled the personal computer and installed Windows Xp Home with all most recently drivers for my hardware.
After I've installed the Nvidia drivers form my sparkle 8800GT on windows xp booting a pop-up from nvidia sentinel alert me on a low power problem to video card but my video card is powered by a pci-e 6 pin connector.
I've tested other pci-e connector and direct powered from a molex on other +12Volt rail but the alert message is always present on booting windows xp.
My vga card have so poor performance in 2D and 3D application.
I've tested the sparkle 8800GT on another system, similar to mine, with an 550W power supply and works perfectly.

I think there is something doesn't works correctly in my power unit on pci-express power rail.

I'm very disappointed for this problem because my computer reseller, if the power switch works (and in this case I think is a compatibility problem with the Geforce 8800 GT video card), don't refund me the money or change the unit.

I've sent an email to your technical service but I'haven't received an answer to my problem.

[Joebob]

This is a universal problem, and seems to affect lots of PSU owners with 8800GT (or the new 8800GTS cards) at random. Meaning it doesn't only affect Thermaltake, but most other PSU brands as well. As far as I know, nVidia says it has reproduced the problem in their labs and are working on it.

[nodespike]

There are no compatibilty issues with any of our PSUs and the 8800GT cards as plenty of users use them. If you feel the PSU is failing then u can test it,
1)To test the PSU take the following steps.
Please take a paper clip - untwist it.
Turn off the PSU.
Take out the 20 or 24pin motherboard connector from the PSU.
Plug one side of the paper clip into the ONLY green wire hole.
Plug the other side into any of the black wire holes.
Turn on the PSU to see if it runs.
If it runs - the PSU is ok.
If it does not, you have a defective PSU.
2) if it does work, then;
Leave the above setup. Use a volt meter and test the power at the red(5v) and yellow(12v) on a 4 pin molex connector(one used for floppy/DVD/HDD drive power)
Thermaltake does not recommend using software to measure voltage in the system as it is highly inaccurate. Please use a multi-meter to test voltage.

[Joebob]

Basically, it seems like it's primarily a graphics card problem, because a competing PSU manufacturer said this about the problem:

"...apparently it is a timing issue, when your computer first turns on the PSU sends power down each line and then backs off waiting for the computer to start the boot process. With the G92 cards they are expecting to see this at a different time than when they are actually getting the signal and it causes them to think they are underpowered so they clock themselves back"