Hey guys,Thought I would start here as many of you have been very helpful during my first ever new build. I've had an overclocked system before, but I had used automatic settings so I consider myself an OC newbie. Anyway, I've finally worked out the issues I was having with my cooler. As expected, I just had a bad mount. I used AI Tools II to attempt an automatic overclock. It got me to 4.4mhz. I then started manually tweaking. I currently have my computer OC'd to 4.7mhz with a voltage of 1.365. FSX and FS9 run great with these settings. Unfortunately, any time I attempt a cold boot or resume from sleep it locks up. More specifically the computer gets caught up and won't post. After about two or three resets it tells me that their was an overclock failure and I get into the BIOS. I am then able to boot to windows from BIOS. I haven't messed with RAM overclocking and I'm wondering if perhaps that's what is causing my issues? I know their are others on this board with similar systems to me. Could my Mushkin 8gb of ram be causing this? Look forward to any help.Thanks,Dave

Hi, I don't think you are pushing enough voltage for 4.7 I think you will need 1.376v minimum and maybe much more.Overclocking is a sport for those that can afford to do so. I stopped at 4.5GHZ and 1.35v not because I had to but because I have to keep my system probably 4-years. A lot of the hardcore OC'ers is prepared to buy a new chip if they burn theirs up. They are also likely planning a new system in a few months and do not care about longevity. Folks planning to keep their current rigs for years not months need heed that if Intel could have put the chip on market at higher than 3.4GHz they would have. Remember these chips run at less than 1.2v stock and less than 50c full load.My personal recommendation for those concerned about processor life is 1.35v max and 68c temp max. Absolute maximums while walking the edge are 1.38v and 72c temps. Anything above the 1.38v and 72c range and you are living by the month (or possible even by hours) on your CPU IMHO.Before upping the volts try these settings with current voltage. Disable all c-states, c1E, C3, C6 e.t.c. all.Disable speed stepDisable virtualizationDisable VRM speed spectrumLoad line calibration = Ultra HighCPU voltage= offset modehttp://www.xtremesystems.org/forums/showthread.php?t=265398http://forums.overclockers.co.uk/showpost.php?p=18190492&postcount=1

I would also make sure you're not using the BLk overclock feature. This feature will change your ram settings not to mention overclocking everything else in your case. Make sure your on a x100 multiplier. Use extreme caution if your adding volts to the offset feature ....start with the smallest increments and work your way up as needed.Verify volts and temps under Turbo conditions -use CPUID (Real Temp 367 under reports voltages in offset mode -doesn't seem to get the added offset volts). An overclocking reference guide, if you're using an Asus http://hardforum.com/showthread.php?t=1578110

I would also make sure you're not using the BLk overclock feature. This feature will change your ram settings not to mention overclocking everything else in your case. Make sure your on a x100 multiplier. Use extreme caution if your adding volts to the offset feature ....start with the smallest increments and work your way up as needed.Verify volts and temps under Turbo conditions -use CPUID (Real Temp 367 under reports voltages in offset mode -doesn't seem to get the added offset volts). An overclocking reference guide, if you're using an Asus http://hardforum.com...d.php?t=1578110

Yes, I'm only using a X100 multiplier. I'm not having any issues in windows and FSX with my current OC, so I wonder why the BIOS doesn't like it?

Yes, I'm only using a X100 multiplier. I'm not having any issues in windows and FSX with my current OC, so I wonder why the BIOS doesn't like it?

You simply do not have a stable overclock most likely due to insufcient voltage.It may be working ok in FSX and the OS, but is it really? Chances are there are errors occuring or things are not as stable as they may appear. The system has just been dealing with it and you haven't reached the right combination yet for it to blue-screen you.If you benched it under Prime 95 for an hour or two there is a good chance you will see your blue-screen.

Hey guys,Thought I would start here as many of you have been very helpful during my first ever new build. I've had an overclocked system before, but I had used automatic settings so I consider myself an OC newbie. Anyway, I've finally worked out the issues I was having with my cooler. As expected, I just had a bad mount. I used AI Tools II to attempt an automatic overclock. It got me to 4.4mhz. I then started manually tweaking. I currently have my computer OC'd to 4.7mhz with a voltage of 1.365. FSX and FS9 run great with these settings. Unfortunately, any time I attempt a cold boot or resume from sleep it locks up. More specifically the computer gets caught up and won't post. After about two or three resets it tells me that their was an overclock failure and I get into the BIOS. I am then able to boot to windows from BIOS. I haven't messed with RAM overclocking and I'm wondering if perhaps that's what is causing my issues? I know their are others on this board with similar systems to me. Could my Mushkin 8gb of ram be causing this? Look forward to any help.Thanks,Dave

Hi DaveI have the same MB as you and had the same o/c at the same volts for a while. What bios are you using? I had the same problems and they were cure by installing bios 1204 available from the Asus web site and selecting xmp from the overclocking menu. The bios will then load the correct memory settings from the memory chips and it may be solved.There is a later version bios 1305 which I am now using and that works okay as well but I am pretty sure it is caused by incorrect memory settings.Read all about it here http://www.xtremesystems.org/forums/showthread.php?t=265228 and http://www.xtremesystems.org/forums/showthread.php?t=265477 and http://www.xtremesystems.org/forums/showthread.php?t=265454.

Hi DaveI have the same MB as you and had the same o/c at the same volts for a while. What bios are you using? I had the same problems and they were cure by installing bios 1204 available from the Asus web site and selecting xmp from the overclocking menu. The bios will then load the correct memory settings from the memory chips and it may be solved.There is a later version bios 1305 which I am now using and that works okay as well but I am pretty sure it is caused by incorrect memory settings.Read all about it here http://www.xtremesys...ad.php?t=265228 and http://www.xtremesys...ad.php?t=265477 and http://www.xtremesys...d.php?t=265454.

I'm using 1204. Where specifically do you select XMP from? Also is their a way to copy my settings and paste here in case you guys see something out of whack?

I'm using 1204. Where specifically do you select XMP from? Also is their a way to copy my settings and paste here in case you guys see something out of whack?

I had exactly the same symptoms described in your OP during my overclock attempts. I reset the cmos (should do this as a matter of course after bios updating) and started clean. Then chose the XMP overclocking mode which sets up the memory timings and voltages stored in the memory (assuming your memory is XMP aware). Creep up on your overclock goal while running prime95 in between slight increases. Since FSX is not as demanding, you can squeeze more OC. I use the OC profiles on my mobo and load the desired configuration based on what I want to do (see sig).

I'm using 1204. Where specifically do you select XMP from? Also is their a way to copy my settings and paste here in case you guys see something out of whack?

XMP is under Advanced Menu, AI Tweaker, AI Overclock Tuner, XMP.

I have had a few cold start issues on mine. I have a gig ud4 and have a stable oc at 4.8 at 1.39. Thing primes for hours and passses all oc t and linx tests. Never locks up or bsod; just has issues with not cold booting...Asus had issues with the cold boot problem, but fixed. Gigabyte have still yet to release a better bios for this. It is a known issue on gig boards with a stable oc not being able to cold boot due to bios sensitvity...pain in the a__!

I know there is a reset button on the back, but does anybody know of any websites that give a good guide to resetting the CMOS on the P8P67?

I know there is a reset button on the back, but does anybody know of any websites that give a good guide to resetting the CMOS on the P8P67?

Turn off the PC at the switch on the PSU on the back. Unplug it. Hold down the start button for a few seconds. Get a paperclip and insert it in the reset hole in the back and hold it in for 10 seconds. It should be reset. If not try repeating this with the bios battery removed.

Interesting finding here ....maybe why some of ya's have been laughing at me with regards to my voltages:http://www.clunk.org.uk/forums/overclocking/39184-p67-sandy-bridge-overclocking-guide-beginners.html#post110904Over clocking using the guide linked above, using the 4.7 to 4.9 method, seems to be a lil misleading on the cpu voltage. When the cpu is running under hvy load (4800x100) CPUID 1.57 and HWinfo32 show the turbo frequency but still report the voltages as 1.35 however, Real Temp 3.67 reports the Turbo mode volts as 1.39 to 1.40. So it seems that if some of you who are cranking up your manual cpu volts to 1.36 and beyond might actually be pushing your CPU into no-mans-land when in Turbo mode. I can only imagine what the actual volts are with a base set at 1.38.Now I know, based on what the dood linked below tells us in his "how to overclock to 4.8" guide -if I'm reading it right, is that the cpu is probably going to need 1.40 to 1.42 volts at 4.8GHz. So that leads me to believe that the Real Temp 3.67 reading (above paragraph) is probably showing the correct volts under load and that CPUID and HWinfo32 are not.http://hardforum.com/showthread.php?t=1578110Ok, now here's the interesting part: CPUID, HWinfo32 AND Real Temp 3.67 all agree on the Turbo voltages using the method described by the Asus rep. at Hardforum.com. The only significant differences that i can between the two overclock guides that might cause the voltage discrepancy is the way the two methods use the "By All Cores" settings. Clunk uses the "can adjust in OS" while the ladder uses the "by per core" setting.So, if anyone else can confirm the voltage discrepancy, then that might explain why the 1.41 to 1.42 volts I use at 5.0GHZ (based on the Hardforum guide) is in the green zone and that why some of ya's only running at "1.36 plus" volts are having issues.p.s. Im using the 1204 bios

FunknNasty, you're mixing things here: Real Temp reads the VID, not the Vcore. Use CPU-Z, Speedfan, HWMonitor, etc to monitor Vcore, never Real TempYou can't take any guide as a reference for the amount of Vcore needed for a certain OC. Every chip is different, and every overclocker too. Personally I won't cross the 1.375V line in a 32nm processor, unless Intel green lights somedayBesides, I'm under the impression that not many have run stability tests with the AVX compliant linpack + Win 7 SP1. Vcore and temps both skyrocket with AVX and most current overclocks would fail if not set with a significant Vcore headroom. I can prime blend for 10 hours and 1.326 Vcore but will need 1.368 in linx + AVX. Temps are also up by some 10ºC

Interesting finding here ....maybe why some of ya's have been laughing at me with regards to my voltages:http://www.clunk.org.uk/forums/overclocking/39184-p67-sandy-bridge-overclocking-guide-beginners.html#post110904Over clocking using the guide linked above, using the 4.7 to 4.9 method, seems to be a lil misleading on the cpu voltage. When the cpu is running under hvy load (4800x100) CPUID 1.57 and HWinfo32 show the turbo frequency but still report the voltages as 1.35 however, Real Temp 3.67 reports the Turbo mode volts as 1.39 to 1.40. So it seems that if some of you who are cranking up your manual cpu volts to 1.36 and beyond might actually be pushing your CPU into no-mans-land when in Turbo mode. I can only imagine what the actual volts are with a base set at 1.38.Now I know, based on what the dood linked below tells us in his "how to overclock to 4.8" guide -if I'm reading it right, is that the cpu is probably going to need 1.40 to 1.42 volts at 4.8GHz. So that leads me to believe that the Real Temp 3.67 reading (above paragraph) is probably showing the correct volts under load and that CPUID and HWinfo32 are not.http://hardforum.com/showthread.php?t=1578110

As Dario says, use the latest version of CPU-Z to read volts. I cant see where RealTemp shows the actual volts. Your 1.42V (CPU-Z?) seems pretty good for 5Ghz. Mine needs 1.45V CPU-Z to be Prime Blend stable. 4.8Ghz shouldnt need more than 1.4 unless you have a poor chip.