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i5 2500 LLC question

post #1 of 2
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I've had this i5 for about a month, and when I OCed it to 4.5GHz I just used 1.350V without looking for the lower limit, and found that for that that voltage I have to use LLC lvl 5 for it to keep that in P95, HWmonitor said 1.36-1.37 (worked fine btw, ran P95 for 10h til I stopped)

so today I want to find the lower voltage needed, so @4.5 I set 1.335V and LLC lvl 4, rebooted, ran P95 and the voltage dropped to 1.32 in P95, so I stopped it just because I want Vcore to be the same idle or load

so I reset and set lvl 5, now bios said idle Vcore was ~1.344, and now in win7 HWmonitor said max 1.36V, present holding @ 1.34V in P95


the point/question is why does LLC raise the IDLE voltage ABOVE what you set in bios...set to 1.335V yet bios said 1.344 and HWmonitor said 1.36 right after win7 started

and when I choose LLC lvl 4, the bios said just about 1.335 like it was set to
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CPUMotherboardGraphicsRAM
i5-2500k @ 4.6 GHz Gigabyte Z68XP-UD4 rev 1.0 sapphire 6950 2GB 4GB 1600 CL6 
Hard DriveMonitorPower
Crucial M4 128GB sata3 24" 1080p XFX 750W XXX 80+silver 
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purifying flames
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500k @ 4.6 GHz Gigabyte Z68XP-UD4 rev 1.0 sapphire 6950 2GB 4GB 1600 CL6 
Hard DriveMonitorPower
Crucial M4 128GB sata3 24" 1080p XFX 750W XXX 80+silver 
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Reply
post #2 of 2
Under any type of load the voltage will increase to make the i5 stable. I have mine set to 1.320V and is stable @4.5 but while running p95 and folding it increased to 1.337 which kinda alarmed me. I think each board is different and I know from experience that my old Gigabyte overvolted my i3 all the time. I'm in no way an expert at voltages but I am very happy with my i5 and its current voltage. You could also try to disable EIST, C1E, C6 in your bios and maybe that will help control your voltages. Good luck hopefully i helped a little.
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