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Unstable 2600k at stock clocks - Please help!

post #1 of 11
Thread Starter 
Hi guys, I've had my 2600k running at the Asus OC'd 4.34GHz for the last few weeks, using exclusively automated tuning. The one change was to set my ram voltage manually from 1.5v to the spec'd 1.65v for my chips. In the last 24hrs something has gone wrong to where the display goes black, and the machine stops working, but doesn't power off. It can happen either on my desktop, running a folding VM, or watching TV in media center, it doesn't seem to matter what I do. I'm concerned about this new board and proc, neither of which have been worked very hard, and the whole setup is under water. The only thing I've noticed is that my 3.3v voltage has been reading anywhere from 3.3 to 2.96, but this is measured through the ASUS software, I don't have any way of measuring it directly. Would that voltage fluctuation be enough to cause this sort of instability?

I've turned everything down to stock clocks, and it still happens, and it often will go black and need a hard reset during the Windows logo display. Sometimes it boots properly into windows, other times it simply gets to the logo show and the display cuts out. My first thought was GPUs, but I'm not sure how to isolate that directly. Any input would be appreciated!
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AC Mk-800 Cobra
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post #2 of 11
power supply maybe
storm trooper
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storm trooper
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post #3 of 11
Thread Starter 
This thing has been a rock for me, I'd be surprised if the PSU is failing, but I guess it's possible... I'm wondering if I should be running the additional 4-pin molex connector to put some more power into the board? I hadn't even noticed it was there until today.
AC Mk-800 Cobra
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AC Mk-800 Cobra
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post #4 of 11
Quote:
Originally Posted by SaltwaterCooled View Post

Hi guys, I've had my 2600k running at the Asus OC'd 4.34GHz for the last few weeks, using exclusively automated tuning. The one change was to set my ram voltage manually from 1.5v to the spec'd 1.65v for my chips. In the last 24hrs something has gone wrong to where the display goes black, and the machine stops working, but doesn't power off. It can happen either on my desktop, running a folding VM, or watching TV in media center, it doesn't seem to matter what I do. I'm concerned about this new board and proc, neither of which have been worked very hard, and the whole setup is under water. The only thing I've noticed is that my 3.3v voltage has been reading anywhere from 3.3 to 2.96, but this is measured through the ASUS software, I don't have any way of measuring it directly. Would that voltage fluctuation be enough to cause this sort of instability?
I've turned everything down to stock clocks, and it still happens, and it often will go black and need a hard reset during the Windows logo display. Sometimes it boots properly into windows, other times it simply gets to the logo show and the display cuts out. My first thought was GPUs, but I'm not sure how to isolate that directly. Any input would be appreciated!

SAME exact thing was happening to me a month ago when I first got my 2600k and Maximus. I couldn't even leave it on over night without it crashing. I too had 1.65V memory from my x58 build in there and thought that it may have been causing the problem. I had just bought everything from Microcenter so I decided to take both my mobo and processor back and exchange them (they gave me a hard time about the 2600k exchange but they did it anyway). Lo and behold, put everything back together and even with the 1.65V memory everything worked FINE.

Pretty strange coincidence since mine would go black and I would have to manually power the system down by holding the power button down a while. The other goofy thing, it would not turn back on unless I killed the power to my power supply completely for like an hour, then came back and tried again.

Wish I had a magic fix for you, but an exchange for the exact same parts cured my ills.
post #5 of 11
Thread Starter 
Quote:
Originally Posted by Foolsmasher View Post

SAME exact thing was happening to me a month ago when I first got my 2600k and Maximus. I couldn't even leave it on over night without it crashing. I too had 1.65V memory from my x58 build in there and thought that it may have been causing the problem. I had just bought everything from Microcenter so I decided to take both my mobo and processor back and exchange them (they gave me a hard time about the 2600k exchange but they did it anyway). Lo and behold, put everything back together and even with the 1.65V memory everything worked FINE.
Pretty strange coincidence since mine would go black and I would have to manually power the system down by holding the power button down a while. The other goofy thing, it would not turn back on unless I killed the power to my power supply completely for like an hour, then came back and tried again.
Wish I had a magic fix for you, but an exchange for the exact same parts cured my ills.
Hmm, not the news I was hoping for, but I'm glad to know I'm not the only one that's had similar symptoms! I haven't had to cut the power via the PSU switch, but I'll give that a try and see what happens.

Edit: Currently trying to find out what the supplemental 4pin molex connector does, if it adds stability to the PCI bus that could be a solution- I'm currently running 4 or 5 PCI-e devices.
AC Mk-800 Cobra
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AC Mk-800 Cobra
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Win-7 Pro x64 HP LP3065 30" 2560x1600 Dell 1600x1200 Portrait Monoprice Gaming Keyboard w/ MX Blacks 
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post #6 of 11
yeah thats what the 4 pin is for. could also be an issue and why you see the 3v drop
storm trooper
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storm trooper
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2x1tb sata wd cavier black 1x2tb seagate 1x1tb ... cd/dvd rw w/lightscribe corsair h100i and some high cfm low rpm fans Windows 8.1 pro 
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65" samsung 4k tv 8550 series logitec k700 XFX 850w black series storm stryker 
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post #7 of 11
"currently running 4 or 5 PCI-e devices"
Nice case. But nevertheless, do not overlook the possibility of overheating.
post #8 of 11
Thread Starter 
Quote:
Originally Posted by Albatross1991 View Post

"currently running 4 or 5 PCI-e devices"
Nice case. But nevertheless, do not overlook the possibility of overheating.

Not sure what you're getting at but thanks for the feedback! I've got a TV-tuner, 8800GTS, 570 and wireless card, all PCI-e. Looking to add a soundcard which will also have to be PCI-e. Temps shouldn't be an issue, board was showing <50C and CPU/GPU were all under 40C, 45C load.
AC Mk-800 Cobra
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Happauge 2250 Tuner Card 
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AC Mk-800 Cobra
(18 items)
 
  
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i7 2600k ASUS P8P67 WS Revolution Zotac GTX 570 Corsair Vengeance 2x4GB 1600MHz 
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OSMonitorMonitorKeyboard
Win-7 Pro x64 HP LP3065 30" 2560x1600 Dell 1600x1200 Portrait Monoprice Gaming Keyboard w/ MX Blacks 
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post #9 of 11
remove the Zotac GTX 570 and see if it works
if it doesnt do the opposite, remove the 8800GTS 512

if that still doesnt work try safe mode and see if that loads
post #10 of 11
Thread Starter 
Quote:
Originally Posted by [T]yphoon View Post

remove the Zotac GTX 570 and see if it works
if it doesnt do the opposite, remove the 8800GTS 512
if that still doesnt work try safe mode and see if that loads

That was where I was headed next, luckily I have some QDCs on either side of the GPUs so I can pull them and test without having to re-beed the loop.
AC Mk-800 Cobra
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CPUMotherboardGraphicsRAM
i7 2600k ASUS P8P67 WS Revolution Zotac GTX 570 Corsair Vengeance 2x4GB 1600MHz 
Hard DriveHard DriveHard DriveOptical Drive
Samsung SSD WD Red WD AV-GP Samsung CD/DVD Combo 
OSMonitorMonitorKeyboard
Win-7 Pro x64 HP LP3065 30" 2560x1600 Dell 1600x1200 Portrait Monoprice Gaming Keyboard w/ MX Blacks 
PowerCaseMouseAudio
Corsair HX850 Modified Corsair Obsidian 800D Logitech G700 X-Fi Titanium PCIe 
Other
Happauge 2250 Tuner Card 
  hide details  
Reply
AC Mk-800 Cobra
(18 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600k ASUS P8P67 WS Revolution Zotac GTX 570 Corsair Vengeance 2x4GB 1600MHz 
Hard DriveHard DriveHard DriveOptical Drive
Samsung SSD WD Red WD AV-GP Samsung CD/DVD Combo 
OSMonitorMonitorKeyboard
Win-7 Pro x64 HP LP3065 30" 2560x1600 Dell 1600x1200 Portrait Monoprice Gaming Keyboard w/ MX Blacks 
PowerCaseMouseAudio
Corsair HX850 Modified Corsair Obsidian 800D Logitech G700 X-Fi Titanium PCIe 
Other
Happauge 2250 Tuner Card 
  hide details  
Reply
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