Odd 3870 problem?

[Bleek]

I can overlock my 3870 pretty hard, it'll run several sweeps of 3dmark06 without a hitch. I can even push it further and get a little artifacts but it still runs the complete benchmark.

However, in CoD4 with even a slight overclock the vga hangs?

That can't be right surely?

 

[Bleek]

Just wondering if it's because I'm running it in a PCI 1.0 slot on an old S939 mobo?

My AM2+ system isn't quite ready so ignore the sig, still being built.

 

[Bleek]

Faulty 3870?

Stock clock on a brand new system build and it freezes in CoD4 after 10 seconds if that!

Brand new, OS, drivers, CoD4... death.

The stupid thing is *** 3850 before it ran CoD4 perfectly fine on the same driver set! :x

HELP!

 

[Bleek]

Don't be morons please. It's clearly a typo.

I can only assume it's a duff card, pciE1.0 on old system and pciE2.0 on new system both show the same problem.

Yet both are entirely different from the ground up.

 

[Bleek]

I'm going to install Gears of War tonight after work as see what results I get.

For the record the stop gap 3850 ran CoD4 with ease which makes me think the new 3870 that I replaced it with is 'dodgy' somehow.

One thing I need to find out is how fast my PCIE bus is running, the bios doesn't actually tell me so I'll get sisoft or similar tonight to interrogate the board.

 

[Bleek]

Guys you do realise the 3870 WILL NOT clock past 860Mhz on the core and that will cause it to lock up That is pretty common knowledge so if thats the problem its the same on every card!

It's currently running at stock dude, I even tried dropping it below stock!

I might have an idea of what it is, will investigate when I get home - I just hope it isn't a borked card.