I would at least try a bump in CPU to NB voltage of .1v and see if that stabilizes it. Even though you mostly OC by multi, it can still stress the NB.
Your load temps on water seem a bit high, even with the bump in voltage.
Thread: Please help overclocking phenom II 720  |
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Started 2 months, 2 weeks ago by RandomBloke
Hey,
I apologize if this post is similar to others, but I have searched and could not find the direct answers to my questions!
After finishing my last project, I've recently splashed out on a custom watercooling setup, so I'm now trying to get a bit more performance out of my rig. On air (noctua c12p) I managed to get 3.3ghz out of my phenom II X3 720, which is...
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bbvdd2 replied 2 months, 2 weeks ago
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RandomBloke replied 2 months, 2 weeks ago
Great, thanks for the advice. I'll try that later when I get back home!
Those temps were achieved with absolute min fan speeds (5 fans running at ~600rpm). Raising the speeds to ~800rpm, which is still pretty much inaudible, results in something more like 35C cores, 45C cpu. My logic was that if I overclocked using min fan speeds, thus max component temps, then I ...
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bbvdd2 replied 2 months, 1 week ago
Depending on where your NB voltage defaults, I would start with a .1v increase and probably max out at a .2v increase. Matching the NB voltage to CPU voltage is not necessary.
The extra voltage on your RAM may not be needed unless you are increasing the speed past default, so if you're just OCing with raising the CPU multi, I would back the voltage down as 2.25v is...
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RandomBloke replied 2 months, 1 week ago
Thanks for the advice.
Unfortunately the gigabyte bios is a bit rubbish IMO as the voltage options are very limited:
CPU
DDR2
Chipset
PCIE
HTT
HTR
are the only voltages that you can change in the F7 bios for the 790fx-ds5. I've been tweaking the chipset voltage naively thinking that it is the same as the NB voltage. So it looks like I can't ...
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bbvdd2 replied 2 months, 1 week ago
Quote:
Originally Posted by RandomBloke
Thanks for the advice.
Unfortunately the gigabyte bios is a bit rubbish IMO as the voltage options are very limited:
CPU
DDR2
Chipset
PCIE
HTT
HTR
a
Chipset is the NB voltage.
Take a stab at AMD Overdrive if you ...
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RandomBloke replied 2 months, 1 week ago
Ok - great, thanks for the clarification!
I do use overdrive, but only to change FSB, multipliers etc when stability testing with orthos. The voltage adjustments in overdrive don't work for me - must be some sort of incompatibility with my hardware.
I feel more comfortable knowing that the chipset voltage is the NB voltage - I'll have another go!
Thanks!...
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bbvdd2 replied 2 months, 1 week ago
Any luck on pushing the OC?
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RandomBloke replied 2 months, 1 week ago
Right - I've downloaded the latest version of overdrive and it will let me change some voltages. Great.
I've found out that the chipset voltage in my bios (which is the same as the NB voltage as you pointed out) is for the interface with the SB + PCIE etc. However, what I want to be overclocking is the CPU-NB voltage (for the memory controller in the CPU), which is ...
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RandomBloke replied 2 months, 1 week ago
Haven't had any luck with overdrive - increasing the NB-VID or NB-core voltages in AOD have only made it more unstable. I think my hardware just doesn't like AOD. I've gone back to the bios and have been trying to push the mhz, and testing using different cpu multi / fsb combinations.
I've increased the vcore to 1.525V, as I thought my temps probably aren't too high...
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InfDaMarvel replied 2 months, 1 week ago
I have a weird feeling that's a quality board. It maybe just be the the processor...? Or the Ram.
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