- Jul 27, 2013
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- 10,510
I have tried to OC a Phenom ii X4 920 2.8 Ghz. By raising the HTT to 250 i have managed to get it to 3.5 Ghz, but to make it work i have had to raise the vCore from 1.350 to 1.525 (and it bumps to 1.6 under load).
I feel like the voltage is a bit to high for that FSB. And it's still not really stable!
The tempratures i'm getting is about 41C idle and 56C - 57C under load. I'm not really happy about those idling temps since i got a huge noctua sink with dual 120mm fans (and decent case fans as well).
Here is a list of changes i made to the BIOS:
- Disable AMD Cool and quiet controll
- Set the CPU multiplier to 14x instead of auto
- Set the HTT to 250
- Set the memory clock to 3.33x (Stock is 4)
- Set the K8<->NB HT Speed to 4x (stock is 5)
- Set the vCore to 1.525 (Stock is 1.350)
CPU-z reads:
- HT Link 1000 Mhz (stock)
- NB Frequency 2000 Mhz
- DRAM Frequency 416.7 Mhz (Stock is 400)
- FSB : Dram 3:5
- Max TDP 125W (while HWMonitor actually reads out 140W)
- And also the correct bus speed, core speed and multiplier
I don't think i have changed anything else.
I'm really happy with the performance at this level and don't feel any need to push it further. But i do want to get it stable, and to get vCore and temps down a bit. Anyone got any advice? Have i missed a step? I'm new to OC and any help would be greatly appreciated!
Here are some pictures from BIOS:
I feel like the voltage is a bit to high for that FSB. And it's still not really stable!
The tempratures i'm getting is about 41C idle and 56C - 57C under load. I'm not really happy about those idling temps since i got a huge noctua sink with dual 120mm fans (and decent case fans as well).
Here is a list of changes i made to the BIOS:
- Disable AMD Cool and quiet controll
- Set the CPU multiplier to 14x instead of auto
- Set the HTT to 250
- Set the memory clock to 3.33x (Stock is 4)
- Set the K8<->NB HT Speed to 4x (stock is 5)
- Set the vCore to 1.525 (Stock is 1.350)
CPU-z reads:
- HT Link 1000 Mhz (stock)
- NB Frequency 2000 Mhz
- DRAM Frequency 416.7 Mhz (Stock is 400)
- FSB : Dram 3:5
- Max TDP 125W (while HWMonitor actually reads out 140W)
- And also the correct bus speed, core speed and multiplier
I don't think i have changed anything else.
I'm really happy with the performance at this level and don't feel any need to push it further. But i do want to get it stable, and to get vCore and temps down a bit. Anyone got any advice? Have i missed a step? I'm new to OC and any help would be greatly appreciated!
Here are some pictures from BIOS:
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