jawtheshark's Journal: GeForce 6600 -- Very odd

I took the graphics card, stuck it in a old AGP motherboard I have (featuring a Pentium MMX 233MHz). Didn't work at first. Then I plugged in the power connector on the card. Boots up like a charm.

So the card is not defective :-/
It still is not clear whether it's my motherboard or the powersupply. :-/

Problems with 6600+MPX chipsets

[myAmygdala]

Looks like there's lots of problems with this combination.

http://forums.2cpu.com/showthread.php?t=70532 [2cpu.com]
http://forums.2cpu.com/showthread.php?t=63213 [2cpu.com]

Re:Problems with 6600+MPX chipsets

[jawtheshark]

Thanks.... Seems that I can bury my idea of getting it to work. Oh, well, I'll keep the card for the future... or give it to my sister.

Thanks for the research.

it's the voltage....

[kesuki]

agp slots have a lot of variations at a lot of voltages... older (or cheaper) motherboards don't supply the correct amount of voltage because they were designed when gpus used as much power as a hd, not as much power as a main cpu... hense the little power add-on on the card. which enables it to work and function properly on an earlier design agp slot, without the little power add-in they would have had to make the card so as that it would be impossible to insert into the older style slot.

Re:it's the voltage....

[jawtheshark]

I understand that... The thing is, the motherboard that worked is older and a no-name brand (at least, I don't see any reference to a brand). The motherboard that didn't work is a Tyan (which is actually a pretty reputable brand for SMP machines) and it's "only" three years old.

The power supply in my dual machine is a 530W Antec and the power supply I used with the P233MMX motherboard was a cheap ass power supply from Sweex. It rates over 600W [sweex.nl], but I don't really trust it. (Came out of my server, I got