7800 gs... no overclock!

[n0aH]

Ok, when i overclock my card more than like 20 on the core and 80 on the mem, everythign works fine, untill i will be in the middle of playing the game and it will shutoff. By "shutoff i mean" everything on the pc is working, fans on and still powered up, but it shows the my monitor is disconnected and thatthere is basicaly no gfx card..

 

[Evilsizer]

try running everything at stock and i mean everything. you will be able to pin point the problem also might want to try another video card if you can too. just some thoughts to help you get it fixed. GL

 

[Maviryk]

Crank up your AGP VDDQ voltage.

 

[clo007]

how do you do that mav?

 

[Evilsizer]

in the bios ther should be a option for increasing agp voltage. some boards have this option alot of them dont.
this is from a abit ai7 review showing what mav is talking about.
http://www.cluboverclocker.com/reviews/motherboards/abit/AI7/images/softmenu1.jpg

 

[Maviryk]

Motherboard BIOS. Keep in mind you will shorten the lifespan of your videocard by doing so.

 

[n0aH]

Ok...if my video card dies when i do this im coming to your house with a gun...

jk if i kill it its my problem for doing it

edit: its at 1.5 now.. im guees i should set it at 1.6?

 

[SNieX]

could the card be overheating.... take some temps... user rivertuner for that

 

[n0aH]

i was thinking it could be the tems but check the other thread for that...

http://www.ocforums.com/showthread.php?t=456872

 

[n0aH]

put my voltage at 1.6, still shutsoff when i o/c. temps are...

44 idle
55 load

dosent seem to high

 

[Maviryk]

I have mine at 1.8, but mine is on water and OCed a lot.

The AGP VDDQ voltage just helps with stability. The GS cores are hit are miss, could be that you got one that doesn't cut it for OCing. What's the stock speeds set at?

 

[n0aH]

stock speeds arent bad...im not at home no so im not sure. i think the core is 475 and the memory is 1.3

and what temps and speeds are urs at..you have a 7800gs as well?

 

[Hipcrostino]

i had this black out problem, but it was due to ram instabiliy, dispite running memtest and prime95 stable. i dorpped it 5Mhz and never looked back. I've change that ram now though

 

[n0aH]

i had this black out problem, but it was due to ram instabiliy, dispite running memtest and prime95 stable. i dorpped it 5Mhz and never looked back. I've change that ram now though

ram is not the problem..its the gfx card