Hey all,
Hope someone can help me with these characteristics but I am baffled.
Have been running my i5 750 with the specs in my sig at 4ghz (20x200) with 20 runs Linx stable (with the newest linpack) and a couple hours of prime. This is normally good enough for me as I do not do anything that stressful and I haven't had any problems since using this overclock a few months ago.
Since last week I have been trying to get it stable at 3.8ghz as it was quite warm. Did get it stable but when using the Dynamic Vid feature on my Gigabyte board however, it enters an infinite loop when exiting sleep and I have to clear the cmos to get it to boot. So I tried different multipliers to see if it behaved any better, as I heard that these chips prefer odd ones, and I cannot even get to the bios screen without having to recover the bios. Any ideas on what could be causing this behaviour would be appreciated, as I remember when I did try 3.8ghz when I just got the chip with the combinations listed below they were fine.
4ghz (21x191) Vcore: 1.33V, Qpi/Vtt: 1.26V, PCH: 1.1V
Stable using the method above
4ghz (20x200) Vcore: 1.33V, Qpi/Vtt: 1.26V, PCH: 1.1V
Stable using the method above
3.8ghz (21x181) Vcore: 1.26V - 1.33V, Qpi/Vtt: 1.26V, PCH: 1.1V
Cannot get to bios
3.8ghz (20x190) Vcore: 1.26V - 1.33V, Qpi/Vtt: 1.26V, PCH: 1.1V
Cannot get to bios
3.8ghz (19x200) Vcore: 1.26V, Qpi/Vtt: 1.24V, PCH: 1.1V
Using Dynamic Vid stable with the method above but goes into an infinite loop when exiting sleep
3.8ghz (19x200) Vcore: 1.26V, Qpi/Vtt: 1.24V, PCH: 1.1V
Is stable with no Dynamic Vid
I could just run 19x200 without Dynamic Vid as the Vid probably drops too low to get the chip to boot but I would like to know if possible why my chip behaves as it does.
Thanks
Hope someone can help me with these characteristics but I am baffled.
Have been running my i5 750 with the specs in my sig at 4ghz (20x200) with 20 runs Linx stable (with the newest linpack) and a couple hours of prime. This is normally good enough for me as I do not do anything that stressful and I haven't had any problems since using this overclock a few months ago.
Since last week I have been trying to get it stable at 3.8ghz as it was quite warm. Did get it stable but when using the Dynamic Vid feature on my Gigabyte board however, it enters an infinite loop when exiting sleep and I have to clear the cmos to get it to boot. So I tried different multipliers to see if it behaved any better, as I heard that these chips prefer odd ones, and I cannot even get to the bios screen without having to recover the bios. Any ideas on what could be causing this behaviour would be appreciated, as I remember when I did try 3.8ghz when I just got the chip with the combinations listed below they were fine.
4ghz (21x191) Vcore: 1.33V, Qpi/Vtt: 1.26V, PCH: 1.1V
Stable using the method above
4ghz (20x200) Vcore: 1.33V, Qpi/Vtt: 1.26V, PCH: 1.1V
Stable using the method above
3.8ghz (21x181) Vcore: 1.26V - 1.33V, Qpi/Vtt: 1.26V, PCH: 1.1V
Cannot get to bios
3.8ghz (20x190) Vcore: 1.26V - 1.33V, Qpi/Vtt: 1.26V, PCH: 1.1V
Cannot get to bios
3.8ghz (19x200) Vcore: 1.26V, Qpi/Vtt: 1.24V, PCH: 1.1V
Using Dynamic Vid stable with the method above but goes into an infinite loop when exiting sleep
3.8ghz (19x200) Vcore: 1.26V, Qpi/Vtt: 1.24V, PCH: 1.1V
Is stable with no Dynamic Vid
I could just run 19x200 without Dynamic Vid as the Vid probably drops too low to get the chip to boot but I would like to know if possible why my chip behaves as it does.
Thanks