Overclocking with GForce3

[Marine]

Can someone please point me in the right direction to help me figure out why none of my overclocked ASUS CUSL-2/E/EP/BP based machines will successfully run a GeForce 3 card? Got two GeForce3s, one Gainward (CardExpert) another by Ocie. One machine been running stably at 150 MHz with a GF2/GTS, the other at 150 MHz with a V770. Put the GeF 3s in and while both will run in 2D apps, as soon as there is a 3D call, the machines lock. Put the machines at default FSB and the cards work fine. Been a bit occupied lately with national security issues, maybe I've missed something. Don't the GeForce 3 cards overclock?

 

[yodayoda]

dude, it is probably something wrong with the PCI bus divisior from your FSB. running at 133 MHz FSB and a 1/4 divisior, your PCI bus would run at a nice respectable 33MHz. but if you crank it to 150MHz FSB with the same divisior, your PCI bus is running at around 38MHz. maybe that is outside the tolerance of the video card and it is f-ing up

 

[cookieman]

Hi!

I think yodayoda is right. Just think of AGP
So you try to run a videocard at 75 Mhz (FSB/2 for AGP ) that was designed for 66 Mhz. I think that's understandable why is
not working. Geforce-3 is an impressive videocard, maybe it is overheating...
Bu I still believe that it does not like the increased FSB.

Cheers,

 

[Marine]

Friday, November 30, 2001 6:39 PM (NEW!)

Well, that's encouraging. But this doesn't have anything to do with the PCI bus, rather the AGP. So, again, on one CUSL-2C, I was running a PIII 1Ghz O/C to 1200. Everything was fine with the GeForce2 GTS card, no problems, stable as a house. So I bought a Gainward Cardexpert GeForce 3 card, and it installed fine, no problems. However, as soon as I tried to play a game, watch a DVD, the entire system locked up. After screwing around with drivers for much of a day, I reset the machine to the default 133 MHz FSB and the card worked perfectly.

On another CUSL-2EP machine, running a PIII 500E O/C'd to 750@150 FSB a V770 had run perfectly for over a year. I bought a new GeForce III/Ti500 Inno 3D card and same exact behavior. Fine in desktop, as soon as I tried 3D calls, machine locks up. Both running latest DirectX 8 in Windows 2000 SP2. Very disappointing. I don't think it's a heat issue, as the cases are well cooled and the crash is instantaneous, rather than after a few cycles of 3D processing.

Would be interested in anyone with this issue discussing possible solutions.