o/c probs

[TweaK-FreaK]

PIII 800 EB
tyan trinity 400
256 pc133
TNT2

I am running the FSB at 150 so my 800@900. I did Sandra, 3dMark,ect, all the benchmarks. Everything seems to work ok EXCEPT for the helicopter test on 3dmark. It locks up when it runs this test. Every other test is fine but this one crashes. My pci and Ram are running at default speed. I think my agp is clocked to high or something because when I run my FSB at 140 it works fine. Any thoughts if this is the prob and any ideas on how to fix it. I know it should run at 150 cuz I've seem people with TNT2's that run it at 150.

[DocClock aka MadClocker]

Do you have many bus speed options?...you could try softfsb, or the other one I can't remember the name.
The highest I seen a tnt2 card was 139fsb..although My post says I'm at 150fsb, I don't think my agp bus is that high....I think my mem timings are 4-3-1..and I must admit, I still don't quite have a grasp on the 4-3-1 thing. Unfortunately, 3dmark will bring down a system fast, which can be a good thing..did it kik you out to the desktop? or did the system just crash?..that will help pinpoint the prob

[DaveB]

What is your core voltage at?

Increase it to 1.9V or 1.95V and that might do it. I had to up the core to 1.95V to get my PIII 700 @ 994 MHz through 3DMark2000. It would lock up at 1.9V. I've noticed that the CPU seems to cause hard locking, where you have to shut it down. And Graphic card issues tend to cause the test to kick out to Windows, rather than freeze up the system. My PIII700 has been running with the core over 1.9v since July with no problems. It's been at 1.95V since early October.

[Phil]

just becasue other people have gotten their cards this high doesn't mean for sure that your would, unfortunately I think your board is a bx chipset so can only support a 2/3 agp divider giving you a 100mhz agp bus which is a little high, another thing is that your board may be holding you back as I know that nvidia cards are good at high agp speeds, my tnt2u will run on a 133mhz agp bus but this is probabally quite rare (even rarer since I fried it the otyher day :( )

[DaveB]

The Tyan Trinity 400 is a VIA 133A mobo, not a BX. At 150 MHz, the PCI is 37.5 MHz and the AGP is 75 MHz. Neither of these are a problem today. I dunno what the SDRAM is at. It could be at 150 MHz, but it's probably at Host Clock (FSB) -33 MHz setting.

[TweaK-FreaK]

Yes my RAM is at host clock -33mhz.