Furmark ovs ATI tool? What is best for finding most stable OC especially for Vram

Which is better?

 

i don't like ATItool, i tried it once and my GPU never went above 80°C... maybe i didn't do it properly, but at least furMark works from the beginning. honestly, that program will send your GPU temps skyrocketing.

 

Yeah I find ati tool pushes it to 80-82C max but furmark goes to 85C. But its nice to have the auto artifact dectector on ATI tool, seems that if I OC the CPU ati tool suddenly finds tons of artifacts; mangaged to get memory up to 480 stable with CPU at 2.4ghz but at 2.73 ghz its finds artifacts even at 400(stock) within seconds! Wierd. Guess I will run both

 

1. Increase clocks in 10 MHz increments and run for 1 minute in ATITool's artifact scanner. If no errors, increase another 10 MHz. When you do hit artifacts, back off by 5 MHz and run again. If it can run for 5 minutes solid, great. If not, back another 5 MHz and try again.

2. Do this individually for the core and the memory. Once you find the maximum for each, run for 30 minutes with both core and memory overclocked.

3. Run the same clocks in Furmark to see if it's stable in there as well.

4. Enjoy!

It may take you an hour or so to find combined stable clocks, but it's worth it to be meticulous.

 

yeah I am doing that but at CPU stock and GPU stock except for memory at 480mhz it was stable for 15 minutes in both furmark and ati tools. But bumping up CPU via turbogear to 2.76 seems to make the memory unstable in ati tools even at 400mhz. Is there a reason for this? The temps don't even have a chance to get anywhere near 80C as it artifacts within seconds

edit : gaming OC @ 2.63 ghz does not affect it! Stable at 495mhz. How odd!

 

Ok I must have a poor OCer card. After following the method above my max overclock is 510/1020/486 with CPU at stock. At 2.63 the core wasn't stable above 500. Memory tops out at max 495 and core 520 separately before artifacting begins. All the while temps never climb above 82C thanks to my cooling mods. Could it be my card isn't getting enough juice? Can the voltage be upped?

 

It's very likely there's not enough power to feed an overclocked CPU and GPU at the same time. I know some Clevo owners had that problem.

 

That could be the problem indeed. I think my card is one of the cheaper made ones however as several other people with same card and computer but with an e6700 managed to get higher overclocks than me and with the processor clocked at 2.93 ghz. The values in my sig are the very max. 1 mhz further in any 3 of the separate clocks will deliver artifacts no matter the temp. Still got some decent fps boosts in crysis and the temps don't get above 78C!