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***Official Ivybridge Overclock Thread***

Ok so here is my two cents

4.7GHz @ 1.33v
10 hrs prime stable
5 passes IBT max stable



this was just 10 mins but 10 hrs saw my temps hit 67c

funnily enough 4.8GHz i limited by volts and not temps? 4.8GHz takes too many volts, 1.43v but temps after 10hrs prime only saw 75c!!!! so im going to stick to 4.7GHz :)
 
buzzlightweight said:
Ok so here is my two cents

4.7GHz @ 1.33v
10 hrs prime stable
5 passes IBT max stable

this was just 10 mins but 10 hrs saw my temps hit 67c

funnily enough 4.8GHz i limited by volts and not temps? 4.8GHz takes too many volts, 1.43v but temps after 10hrs prime only saw 75c!!!! so im going to stick to 4.7GHz :)
Click to expand...

What did you use between the IHS and cpu mate?
 


Thats where im at right now, my aim was 4.4 so im happy with that. Tried to get to 4.5 but temps just werent worth it.

IBT took it up to 82C on cores 2 and 3, the others were at least 5C lower.

Using an MSI Z77A-GD55 with LLC set to level 2, and an EVGA superclock cooler (MX4 paste if anyone cares lol).

Seems stable at the moment, no errors. Will run this overnight most likely. Hope that screen i posted is a reasonable size :)
 
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Pete21121
If your on BCLK 100 I think you need a nudge to core volts as that slight drop in bus speed (99.8 MHz) was happening to me. Check for WHEA warnings in Event Viewer, System Log.
 
thenewoc said:
Pete21121
If your on BCLK 100 I think you need a nudge to core volts as that slight drop in bus speed (99.8 MHz) was happening to me. Check for WHEA warnings in Event Viewer, System Log.
Click to expand...

Yeah, left it on overnight and got a few errors and prime had crashed. Ill give it a shot, cheers.

Edit: Core Volts didnt solve it - and my motherboard wont let me change the base clock as far as i can see. Anyone else got an MSI Z77 board? Im a bit stuck, seems like just upping the volts isnt quite solving things anymore. Anyway, im testing at 1.264 now, so will see how that goes.
 
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pete21121 said:
Yeah, left it on overnight and got a few errors and prime had crashed. Ill give it a shot, cheers.

Edit: Core Volts didnt solve it - and my motherboard wont let me change the base clock as far as i can see. Anyone else got an MSI Z77 board? Im a bit stuck, seems like just upping the volts isnt quite solving things anymore. Anyway, im testing at 1.264 now, so will see how that goes.
Click to expand...


Am just trying 4.4 now on a gd65, on auto core volts but have found nudging up vdroop has it stable at the moment. Dont know whether your board can go higher on vdroop?

I've also found dropping ram speed back to default can help determine getting the cpu stable first.
 
thenewoc said:
Am just trying 4.4 now on a gd65, on auto core volts but have found nudging up vdroop has it stable at the moment. Dont know whether your board can go higher on vdroop?

I've also found dropping ram speed back to default can help determine getting the cpu stable first.
Click to expand...

Yeah im at level 2 right now. Which way should i be pushing the numbers btw? I think that i get less of a voltage drop with lower levels, but its hella confusing when every other board seems to have settings like "high, very high" etc.

Ive also just whacked in my old 7900gt, as i was running the on board GPU earlier, just to see if that helps.
 
pete21121 said:
Yeah im at level 2 right now. Which way should i be pushing the numbers btw? I think that i get less of a voltage drop with lower levels, but its hella confusing when every other board seems to have settings like "high, very high" etc.

Ive also just whacked in my old 7900gt, as i was running the on board GPU earlier, just to see if that helps.
Click to expand...

My vdroop has percentages, I managed half hour at 4.4 no errors with vdroop set to 12.5% which is the lowest setting on my board.

Trying 4.5 now but even more vdroop can't sort that at the moment but I did get 4.6 stable the other day but that required setting the cpu core volts (1.3250v) with 100% vdroop.

Just on igpu myself at the moment.
 
thenewoc said:
My vdroop has percentages, I managed half hour at 4.4 no errors with vdroop set to 12.5% which is the lowest setting on my board.

Trying 4.5 now but even more vdroop can't sort that at the moment but I did get 4.6 stable the other day but that required setting the cpu core volts (1.3250v) with 100% vdroop.

Just on igpu myself at the moment.
Click to expand...

The cpu core is set to 1.305V in my bios, according to CPUZ, at idle its 1.288 and drops to 1.264 under load. Seems fairly high for 4.4 to me, might be forced to drop it to 4.3 and try again.

Edit: well, dropped it to 4.3 and managed to sort the BCLK. Was getting WHEA errors within 10 mins of testing at 4.4 with 1.264V, and temps werent comfortable when pushing the voltage higher. Testing at 1.192V now.
 
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pete21121 said:
The cpu core is set to 1.305V in my bios, according to CPUZ, at idle its 1.288 and drops to 1.264 under load. Seems fairly high for 4.4 to me, might be forced to drop it to 4.3 and try again.
Click to expand...


Your cpu core volts seem a little high to what I'm experiencing.

4.4 for me is, cpu core volts set to auto and lowest setting on vdroop (12.5%).
This reads 0.976 v on idle in cpu-z, 1.184 v load.

4.5 I can't seem to get away with cpu core volts on auto so have tried 1.26 v in bios, that reads 1.248 v in cpu-z on idle and 1.232 v load. Not using vdroop on this one.
 
thenewoc said:
Your cpu core volts seem a little high to what I'm experiencing.

4.4 for me is, cpu core volts set to auto and lowest setting on vdroop (12.5%).
This reads 0.976 v on idle in cpu-z, 1.184 v load.

4.5 I can't seem to get away with cpu core volts on auto so have tried 1.26 v in bios, that reads 1.248 v in cpu-z on idle and 1.232 v load. Not using vdroop on this one.
Click to expand...

Yeah it seemed to need a big jump from 4.3 to 4.4. 1.192V at 4.3ghz is looking good atm. Might need to bump the Vs a notch higher eventually, but thats fine.
 
I managed 4.3 for over 25 hrs prime blend, no whea warnings but for some reason even though it can run for ages without problem it then doesn't like being rebooted and can fall over on POST.
 
I seem to be able to do everything but Prime blend without errors. Ive not touched the ram clocks, other than setting it to xmp, which shouldnt make any difference should it?
 
I'd imagine it would as I thought xmp were optimized settings. Mine don't have xmp but I've been knocking mine down to 1600 MHz, auto timings and volts. Test if it passes prime blend, if yes then try higher mem settings. Some times it has been necessary to nudge up the ddr volts on higher cpu speeds.
 
Mine was set at 1333 without xmp, then just went to 1600 when i turned it on. Memory volts etc are left on default, ~1.5v

Edit: Set it back to default, no errors. Put XMP back on, set memory volts from auto to like 2 notches up (about 1.57 i think), getting no errors so far :)
 
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