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P5B-Deluxe won't POST after OC crash

post #1 of 13
Thread Starter 
Hi all,

System Setup:
P5B-Deluxe Wifi rev. 1.04g with 1101 bios (whichever is most recent)
E6600 L629F221
2x1gb G.Skill PC2-6400
Corsair HX520W PSU

So a couple nights ago I was fiddling with the settings on my P5B-Deluxe in hopes of a better OC with my E6600 (L629F221 from Tankguys), since I've just installed a Thermalright Ultra 120 Extreme. Anyway, before the HSF switch I was able to get 3.33Ghz stable at 1.35v bios.

With the new HSF installed, I start off at stock speed, upped it to 2.93Ghz at 1.225v, and 3.3Ghz again at 1.35v bios. i was doing this merely to compare my temps vs the temps with the intel stock HSF. i was consistently getting a 11C to 13C drop in load temps, which I was happy with. so apparently, my new HSF was working, my load temps were consistently lower, so I wanted to push it to do 3.6Ghz (400x9).

so with 400x9 I tried Vcore at 1.4v (bios) first, it would boot into windows, but failed orthos within a minute. so I tried 1.425v, same thing. then at 1.45v, it took 6mins until orthos failed, same with 1.4625v. at this point my idle temps was 41C and load temps was 64C. I ran orthos blend with all these tests. I then tried 1.475v in bios, but after like around 5 to 10 mins of running orthos blend the comp just shuts off by itself. I tried to turn it back on but the comp was unresponsive to the power button. so i unplugged the power and let it cool down for a good while, came back and tried to power it on. power goes on, fans are running, hard drive spinning... but no post, no video output to the monitor, no error beeps.

i searched the forums for similar situations and answers... cleared the CMOS, used another video card, put in one stick of ram only, tried it in different slots, tried the same thing with kingston value ram rated at 1.8v, I even booted the motherboard with just the PSU attached to try to reset the board... but no luck, still no post. mobo light would be blue when it senses power, turn red when i hit the power button, but no post, just black screen. I wondered if it's my ram or cpu that's malfunctioned, but i tested them both in a different board, first independently of each other, and then both together... all working in each case. so that limits it down to my board, or psu... and i have a really strong feeling it's the board.

so my question is, what else can i do to make my system boot... i don't really want to go through the RMA process just yet... =( any advice would be appreciated =) thanks
post #2 of 13
What PSU do you own?
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post #3 of 13
I have had the same situation. Looks like you tried everything that would have been regularly suggested. I would try one last thing before RMAing the board. Unhook everything from power, and remove the CMOS battery. Move the clear cmos jumper to the clear pins, and let the board sit there. I did that overnight and the board came back to life.

Other than that, it may just be RMA time.
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post #4 of 13
Quote:
Originally Posted by Knitelife View Post
I have had the same situation. Looks like you tried everything that would have been regularly suggested. I would try one last thing before RMAing the board. Unhook everything from power, and remove the CMOS battery. Move the clear cmos jumper to the clear pins, and let the board sit there. I did that overnight and the board came back to life.

Other than that, it may just be RMA time.
Yeah. Give clearing the CMOS another try. Do what Knitelife have said and leave everything like that for 10 minutes to however long you would like. Sometimes on some boards, it takes a longer time to reset.
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COOLER MASTER Centurion 5 
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post #5 of 13
Thread Starter 
thanks for the suggestions guys, i'll try doing that now... resetting the CMOS
post #6 of 13
do you have any other 775 cpu's? like a p4 or what not? if so try one of those, you may have damaged your cpu (always possible)
post #7 of 13
Thread Starter 
Quote:
Originally Posted by Skullzaflare View Post
do you have any other 775 cpu's? like a p4 or what not? if so try one of those, you may have damaged your cpu (always possible)
Thanks for the suggestion, but I think I've already ruled out the idea that my cpu is damaged. i put it into another board and it posted into bios just fine.
post #8 of 13
Thread Starter 
hrmm... does anyone have anymore ideas for me to get this to POST... i've taken out the CMOS battery and let it sit since last night, with the jumper left at clear... tried to boot up again today but still no POST =(
post #9 of 13
Quote:
Originally Posted by abzolute0 View Post
hrmm... does anyone have anymore ideas for me to get this to POST... i've taken out the CMOS battery and let it sit since last night, with the jumper left at clear... tried to boot up again today but still no POST =(
Did you have the PSU unplugged while you left the battery out?
Any system beeps?
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Mighty-iTX
(12 items)
 
One foot in..
(17 items)
 
mATX
(12 items)
 
CPUMotherboardGraphicsRAM
i7-4770K M7-Impact Strix GTX980 Samsung 
Hard DriveCoolingOSMonitor
Crucial M4 256 Glacer 240L W8.1 K272HUL 
KeyboardPowerCaseMouse
Saitek Seasonic X-650 Prodigy MX518 
CPUMotherboardGraphicsGraphics
4770K/45/43 Maximus VI Extreme R290X R290X 
RAMHard DriveHard DriveOptical Drive
Samsung Crucial M4 64GB RAIDR LSSWM 
CoolingOSMonitorKeyboard
Cooler Master Glacer 7 Ultimate 64 SyncMaster Eclipse 
PowerCaseMouseMouse Pad
XFX 1050 BE 600T Silver MX518 Desk 
CPUMotherboardGraphicsRAM
i5-4330 Z87 Gryphon GTX690 G.Skill RipJawsX 
Hard DriveCoolingOSMonitor
WD Blacks Hyper 212 W8.1 ACER 
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post #10 of 13
Thread Starter 
Quote:
Originally Posted by grunion View Post
Did you have the PSU unplugged while you left the battery out?
Any system beeps?
yea i left PSU unplugged, left the battery out, everything power was isolated from the board for at least 15 hrs...

there were no system beeps that i know of
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