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Haswell Overclock Thread

Ok ill chance the cpu voltage to 'Standard', CPU VRIN Loadline Calibration to 'Medium' and change CPU Offset to +0.010v and see what volts CPU-Z reports under stress.
 
Hmm, have notice in the 'CPU Core Voltage Control' settings this is a 'CPU VRIN External Override' option the 'CPU VRIN Loadline Calibration' i mentioned before was in the '3D Power Control' settings. So which one is actually llc setting?
 
Yeah just seems a tad strange that they would put it in the 3D Power Comtrol settings rather than the CPU Core Voltage Control settins where vcore voltages are?

Cant seem to see what my stock volts are, have looked in the systems tab in the bios but doesnt mention cpu voltages. I have however loaded optimised defaults from the bios settings, turned off all cpu power saving features any cpu turbo settings and restarted, the value of CPU vcore then reads 0.993v, so is that my stock volt? In which case i need to add a fair bit to CPU vcore Offset then?
 
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Hmm something very strange is going on. I have vcore voltage set to 'Normal' , CPU VRIN Loadline Calibration set to Medium.

I started off setting CPU vcore Offset in the BIOS to +0.100, loaded windows and then CPU-Z and it reported vcore as 1.212. Restarted the PC back into BIOS then set CPU Offset to 0.138 as i though that should then give me 1.250 in CPU-Z but it didnt it gave me 1.260. So back into BIOS change CPU Offset to 0.128 to try and achieve 1.250 in CPU-Z but gave me a reading of 1.248. Now anything i set in CPU Offset from 0.128 all the way up to 0.136 always results in CPU-Z reporting a value of 1.248, a CPU Offset of 0.137 results in 1.260 in CPU-Z!!

Any ideas why im unable to get 1.250 vcore in CPU-Z when try to alter CPU Offset in the BIOS??
 
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try a negative offset so -0.05v and see what that does

if stock voltage is 1.212v and you need 1.250v then offset should be + to add, +0.040v maybe the llc level is too low,could try high llc
 
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Hmm, its seems that CPU Offset has a value range of -0.300 to +0.400. I have tried the following

CPU Offset +0.060 CPU-Z 1.176v
CPU Offset +0.075 CPU-Z 1.188v
CPU Offset +0.080 CPU-Z 1.200v
CPU Offset +0.085 CPU-Z1.200v

Doesnt seem to scale correctly
 
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Yeah just be easier if the had enabled or disable like on the older mobos. So you think for example if i selected a CPU Offset of +0.085 with a LLC of Medium which gave me 1.200v in CPU-Z, if i just changed the LLC to High or Ultra then it should give me a higher voltage rating in CPU-Z??
 
Hmm just passed 30min on OCCT LinPACK with 1.212 volts @ 4.6Ghz.

These are the settings i have in the BIOS, is there anything that stands out that i should alter?......

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looks ok to me,all id change is all turbo multis left on auto and just set 46x cpu multi

maybe raise the turbo power limit to 100 watts?

and id disable onboard graphics
 
Turbo multis are fine on auto,not sure on uncore but from what I've seen its best to set it 1x lower than the CPU multi
 
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