General AMD Overclocking questions - Overclock.net

kaxx · 05-08-09

Hey guys, it's been a while since I've OC'ed an AMD chip (since the 939 days), but I just got an Asus M4A78 Pro, a Kuma 7750, 2x2GB of PNY DDR800 RAM. As soon as my PSU and case arrive, I'll be ready to OC this a little.

1. What kind of temps should I be looking at. I'm gonna try to put my old Big Typhoon on it, I think it will fit with no prob's but with the stock cooler and stock settings I'm looking at around 60C Core temp after 4 hour P95 stresstest. Seems pretty hot to me. Is this chip's sensors buggy like my E8400? Both cores read the exact same at all times....

2. What is the max VCore I should set it to?

3. I'm assuming putting the memory at the lowest stable divider is still the norm for OC'ing the CPU, but I honestly haven't even looked at my BIOS options to see what to set it to just yet. I believe I could just set the multiplier higher, but eventually I will need to start upping the FSB.

4. From what I remember reading, isn't 3.3GHz is an average OC for this chip?

Thanks guys, I'm sure I'll have more questions as I get into this more.....

Licht · 05-08-09

Quote:

Originally Posted by kaxx

1. What kind of temps should I be looking at. I'm gonna try to put my old Big Typhoon on it, I think it will fit with no prob's but with the stock cooler and stock settings I'm looking at around 60C Core temp after 4 hour P95 stresstest. Seems pretty hot to me. Is this chip's sensors buggy like my E8400? Both cores read the exact same at all times....

AMD cores can usually take up to 70c. Opterons are under warranty regardless of temperature. My friend's server ran 2 days at 100c before he realized it was. He realized it because after they get so hot they drop in performance.

Quote:

Originally Posted by kaxx

2. What is the max VCore I should set it to?

1.6v is generally where you want to stop.

Quote:

Originally Posted by kaxx

3. I'm assuming putting the memory at the lowest stable divider is still the norm for OC'ing the CPU, but I honestly haven't even looked at my BIOS options to see what to set it to just yet. I believe I could just set the multiplier higher, but eventually I will need to start upping the FSB.

Lower the RAM clock to lowest, as well as HT and everything else. Once you hit max core slowly bring them up one by one until they max out.

Quote:

Originally Posted by kaxx

4. From what I remember reading, isn't 3.3GHz is an average OC for this chip?

Somewhere around there.