Quote Originally Posted by Zoran2 View Post
Hello all,
First off I am not expert in overclocking so I would like that you guys check are my settings (voltages) safe for 24/7 usage.
My i7 920 is overclocked to 3,6 GHz+ TURBO BOOST and I don't want to go higher. Memory is Kingston 3x2 GB kit, 1866 MHZ. It needs 1.65 V to work at that speed. I set CPU clock ratio to 20x, and BCLK to 180. QPI Clock Ratio is x 36 so I get 6,48GHz QPI speed. I set CPU Vcore to 1.27500V in bios, QPI/Vtt Voltage to 1.335V. IOH core is at 1.120V, DRAM Voltage is 1.660V so that BIOS see 1.650V. CPU PLL is 1.840V, ICH Core is at 1.140V.
I have finished LinX 0.6.3. times x50 with maximum memory usage with no errors, maximum teperature reported with real temp is 80C.
I am interested are my settings safe for usage and is there something else i need to do, lower Voltages , atc...
Im am very grateful in advance for your responses, and sorry for my english
Hi there,

Are you using a D0 or C0 i920?

If you have D0 I would say that your Vcore is a little on the high side for 3.8GHz.

Although no 2 chips are the same, I can do 3.8GHz stable with only 1.200v Vcore, 1.225v QPI/Vtt, and the rest on stock.

I could probably get the Vcore lower tbh, but I never bothered playing with the BIOS settings at 3.8GHz as I wanted to get 4GHz stable.

I can do 4GHz with 1.248v Vcore and 1.255v QPI.

You should try lowering your Vcore to 1.2500v and then test with LinX or Prime95 to see if you can get it stable with less voltage.

The voltages you are using are perfectly fine for 24/7 usage, but like I said, you could propably get them lower with a bit of tweaking.

Or you could even leave them where they are, but just bump your Bclk up to 191 which will give you a 4GHz o/c instead of 3.8GHz, I know you said you didn't want to go any higher, but if your chip can do it, then it would be worth it imo...