Prime95 Blend won't reveal the NB-RAM unstability as F@H or OCCT in RAM mode will do. OCCT is though faster than F@H, the last one needing more than 12h to reveal the problem. Look at the system temperature when you OCCT in RAM mode or F@H, it really cranksOriginally Posted by Shocky
What I mean, try to loosen your OC. If the problem disappears, than, like it or not, your OC is unstable. If the problem persists at stock or when you loosen your memory and CPU OC, than it could be a board/bios issue.
We don't have all the same testing rigour for defining stability. Most XS members will go with a SuperPi and 1h of priming. For me, this is just good for world records or gaming, not to be called stable for 7/24 use. It is a personal choise, no need to launch that hot debate anyway.
cpu volt 1.3625... is this about right for 3.4Ghz?
Will depend on the CPU, no way to know. You have to run Prime95 Small FFT which is quiete only sensible to the vcore/vPLL and vFSB, ruling out memory and NB OC issues (providing they have a minimum stability)
cpu pll 1.5, fsb volt 1.4...... was 1.3 but does it matter ?, nb volt 1.4
sb volt 1.05
At the 333 strap, look at the link in my signature, these voltages took me rock stable up to 475FSB on my Q6600. My board is very well cooled. I removed all stock cooling though. This suerely helps.
clock over-charging volt ???? what is this????
No need for it for now. Just set it to 0.8v. For a slight 3.4GHz, no need to touch vPLL or this setting
cpu gtl 0.63x
nb gtl 0.67x
No harm here, but for 3.4GHz only, you can set them to Auto for now. Once stable, look at them maybe, even if useless at 3.4GHz
Its just passed the occt 30 min test so i think prime is in order now..
This is only a quick test. I wil go only with OCCT in CPU mode or Prime95 Small FFT for overclocking the CPU. Set you RAM timings and voltage on Auto and don't overclock it till your CPU is stable (so lower your memory frequency to DDR2-800 even if it is rated at 1200MHz). If you keep like you do overclocking the RAM and CPU, you can't know where lies your problem. Once you're stable on the CPU, go to the memory and NB settings and test with OCCT in RAM mode
Humm, the vPLL issue is wired. But the X38 ASUS boards are all known to have overvolting issues. I lowered my vPLL to 1.5 and I didn't see any temperature increase (or decrease) compared to 1.6v, so I don't think it overvolts that much. Also vFSB and vNB. I'm not stable at lowest values while I'm stable at respectively at 1.3 FSB and 1.4 NB. So, it shouldn't overvolt in manual settings. In Auto, ASUS boards overvolt when you OC, so I will never put a voltage on AUTO
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