6800 GT oc

[SephirothPD]

sorry for little detail, in a rush
im trying to overclock my leadtek 6800 GT, however when the core is over 360 3dmark 03 is frezing for about 5 seconds then continuing, there are no artifacts or sparklies. Can anyone surgest anything or is this just the limit of my card?

thanks lee

 

[geek64bit]

I get that too with my 6800LE, I think it's just pushing the card beyond what it's able. Although I can push mine to 365 before I get that... Use Rivatuner to keep a log of your temps, you might learn something there...

What bothers me is that the freezing seems like it would be more of a RAM issue for the card, but it happens when you/I raise the core speed... To be honest I have no idea what's going on. It's possible (I suppose) that the core is operating too fast for the RAM to handle it, try raising the RAM and then the core...?

 

[greenmachineiijh]

They do not need to be raised together, you can do one or the other. Memory is more overclockable than the core. You also need decent cooling for the card and case. Mine will overclock to 385/1100 and play any games I choose. I have a BFG 6800GT OC and it has a higher level of cooling installed already. This is the only difference. I also have the voltage up by .10

Hope this helps.

If you continue to do what you have always done, you will continue to get what you have always gotten.

 

[addiarmadar]

The leadtek 6800gts may have a hugh HSF but they cut the juice to the GPU/RAM, thus limiting OC.

Either put a better BIOS if you can or Vmodd it.

Personally, Id went for the ASUS 6800gt since it is virtuall the same as the 6800ultra and is very OC friendly.

<i><font color=red>Only an overclocker can make a computer into a convectional oven.</i></font color=red>

 

[deweycd]

I have an MSI 6800 GT and I run it constantly OCed to 385/1100 with no problems at all. It has a huge copper heat sink and a good fan. I have tried overclocking to 404/1115 and it ran smooth. I never had to up voltage and the temp stayed around 65C. I never really tried to OC the mem too far yet but the core has no problem being an ultra.

3DMark Score: 5571 3DMarks

CPU Score: 4755 CPUMarks

 

[RX8]

Whats your PSU?

this could be your problem, you might need more consistent juice.

 

[Eloman23]

I had the exact same problem with my gigabyte 6800gt. All I had to do to fix it was disable fastwrites in the bios. Before that I could only get maybe 360ish before I would get the odd lockups that weren't lockups. With fastwrites off I am fine at 400/1100. Hope this helps..

-Elo

 

[jrnyfan]

I have an evga 6800gt and when i was on my old socket A board, KT600 chipset I could overclock like a madman with stock voltage and an Arctic Cooling NV Silencer 5, i ran on 425 / 1100 for months at a time. When I switched to my new nforce3 board i can't overclock anymore...but the issues with nforce3 and 6800gt's is nothing new, well well documented there. I know that turning of the fastwrites in the BIOS can help...i would start with adequate cooling and then go from there. I bought my new cooler from www.frozencpu.com for 15$ a few months ago and it works like a champ

AMD X2 4200+
MSI K8N Neo2
evga 6800gt
2gb (4x512mb Corsair Ballistix 2.5-2-2-8 )
450w PS