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Did my first OC kill my first build? :*(

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Shoolie22

Registered
Joined
Sep 1, 2011
Ok let me start off with my pc parts

CPU I5 2500K
MB ASUS|P8Z68-V PRO Z68
GPU Superclocked EVGA GTX580
RAM Corsair Vengeance 4Gx2 CMZ8GX3M2A1600C9B
Cooler Corsair H100
PSU CORSAIR 850HX 850W
HD 1T|WD 7K 64M SATAIII WD
MS WIN 7 HOME SP1 64BIT
Case 600T SE

Ok so the build went along fine the pc was working pretty well the only thing I had changed in the BIOS was I disabled the Marvel ports and something else that was interfering with a clean start up (PC would reboot like 3 times before loading windows but this fixed it). I was running a modest auto oc with the AI suite of 4.3ghz.

Then I decided to try out a manual oc of 4.5ghz, these are the changes I made in BIOS.

Ai Overclock Tuner - Manual
BCLK/PEG Frequency - 100
Turbo Ratio: 45
Memory Frequency - 1600mhz
CAS Latency - 9
RAS to CAS Delay - 9
RAS Pre Time - 9
RAS ACT Time - 24
DRAM Command Mode - 2 (the guide I used actually had this as 1T, but I don't really know what this does so I left it at 2. The only numbers I could find on my ram were the timings above)
Load-Line Calibration - Auto
CPU Voltage - Manual Mode
CPU Manual Voltage - 1.25v
DRAM Voltage - 1.5v
PLL Overvoltage - I left on auto, the guide advised to disable it but I could not see how. I could only increase the value or lower it all the way until it became auto.

Then I tested it out using Prime95 while checking CPU-Z, Coretemp, and Realtemp. Everything ran perfect for an hour at 4.5ghz, the core temps hovered around 55c and only one core reached 60c momentarily, I received no errors from Prime95. My idle temps were a solid 33c and with some heavy gaming sessions the temps stayed mid to low 40's. I was so happy all I needed was an Adriana Lima wallpaper to make my first build truly complete.

Then I was ready for bed and put my pc in sleep mode through the start menu, as I was heading towards my room the pc turned on by itself. I went to check what happened but nothing showed up on my monitor and my kb/m had no power! Not even the power or reset buttons on my case were responding, so I held the power button on the mobo until it shut off.

When I turned it back on the cpu led flashed once and the Dram Memok led stayed solid with nothing showing up on my monitor and only my mouse showing it had power (I could tell because it lights up). I held down the Memok button until the lights started flashing and the pc seemed to reboot, but still came back to the same thing with the Memok led staying solid and nothing else responding.

Can any one please help me out this is my first build and I can honestly say I'm totally lost in what to do next :(

Any help is greatly appreciated!
 
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remove power from the psu and then clear the cmos and see if that gets you back into bios. from the settings that you have stated there should be no reason for anything to have endured any damage. sometimes these boards act strange, and if the pll overvolt setting is enabled they have issues coming back from sleep mode.
 
If things get weird or unstable after an OC, or you can't post, step #1 is to hit the clear CMOS button. If you don't know where it is, look it up in the schematic diagram in the manual. There may also be a clear CMOS jumper, but you shouldn't need it.
 
If using cmos can get me back in, should I just go ahead and OC the same exact way? also if I use cmos will I have to upgrade my bios again?

Really appreciate the help :thup:

What I'm having trouble finding is how to disable pll overvoltage in my bios I think that is whats causing all of this.
 
clearing the cmos will only revert the settings for whatever bios was already loaded. you may have to go in and reset some of those settings to get it to boot properly, but as long as it will post you have a chance of it running.
 
Dont put your processor to sleep. This is a known/noted problem with overclocking on these chips/boards.
 
So just do a complete shutdown when I'm not using it? Or is it ok to leave it on?
 
Just shut it down.
In any case, have you pulled the power and pressed the "on" button on your pc housing? To remove any residu of power?
And is it working now again?
Sometimes a full powerdown is required because there is always some power on the system, even if it crashed. The crash can cause some corrupt data to stay active preventing you from booting.
If a full powerdown doesn't work you can try resetting the cmos. After that you shoud experiment with each of your ram sticks.
Sleep mode either works or not. It works fine on my p8p67 yet I don't use it. Windows seven boots within a minute so why not a full powerdown?
It only drains some battery power for bios settings, but those batteries last for more than 4 or 5 years. And are easy and cheap to replace.
 
Leaving it on or turning it off are the best options, as recovering from low power modes are apparently a known issue.

Earthdog, do you have more details on that?
 
Nothing more than anecdotal experiences across a couple of forums (and personal). I will try to dig more examples up though...

"Finicky" best describes that function it seems. Depends on the mobo and possibly some other settings. None of which have been a confirmed solution.
 
Nothing more than anecdotal experiences across a couple of forums (and personal). I will try to dig more examples up though...

"Finicky" best describes that function it seems. Depends on the mobo and possibly some other settings. None of which have been a confirmed solution.

I think power saving modes are finicky also in my experience, I just haven't seen anything that attributes it to a certain board or brand moreso than bad drivers which could affect any hardware. That's the only reason I asked, thinking you might have had a finger on some other trend specific to a board or chipset.
 
Ok so I had to clear cmos to get back into bios, this time I was able to disable pll overvoltage and I used the same exact settings to oc again to 4.5ghz. I'm happy to say that everything is working as it should now, I can restart, shut down, and wake the pc from sleep with zero issues and the oc went solid with prime95 for an hour (temps never reaching 60c!).

Seems to be pll overvoltage for whatever reason was giving me issues at 4.5ghz, because when I had the auto oc 4.3ghz pll overvoltage was on auto and the pc could wake from sleep.

Just want to thank you guys for all the help and suggestions :)
 
Posted this in the other overclock thread. Sleep works well for myself and really everything I've read is just PLL Overvoltage pretty much disables it and anything above 4.7ghz disables it. You can try these settings if you want, but since it's already working you don't have to. Just hope this can help anyone reading who is looking for a simple safe 4.5ghz setup.

Turbo Ratio - By Per Core
Set all to 45
Internal PLL Overvoltage - Disable
EPU Power Saving - Disable
Load Line Calibration - Regular
VRM Frequency - Manual
VRM Frequency Fixed - 350
Phase Control - Standard
Duty Control - T. Probe

CPU Voltage - Offset Mode
Offset sign - +
CPU Offset Voltage - .06 (don't put .6!)
Dram Voltage - 1.50
VCCA - .925
VCCIO - 1.05
CPU PLL - 1.70
PCH Voltage - 1.050
CPU Spread Spectrum - Disable

Enable C1E, C3, and C6

Most of these are stock voltages, but its always good to set them instead of auto when overclocking. If it wasn't for the problem with resuming from sleep, I'd push my chip a lot higher. Since I can't go much higher without disabling sleep, I figured I might as well try to save on power consumption. So all these settings are very safe.

The only thing you might want to play with after that is the Offset voltage and maybe your DRAM voltage if your computer crashes. I have 16GB of ram and set my voltage to 1.54 just incase. Although it was stable at 1.50. With the Offset voltage, I needed to set it to .06 because randomly during idle it would crash from too low of voltage.

My idle is just a tad over 1v and load is 1.32v.
 
good to see that clearing the cmos took care of the boot issue and that pll change fixed the sleep issue. should be some good days ahead for you with your new setup.

Have fun with it
 
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