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No POST - only flashing cursor on screen

post #1 of 13
Thread Starter 
I've put this issue in AMD as that's my rig... I also have ZERO idea as to what the issue could be being caused by.

When I turn on my PC (sig rig) in the mornings there's no POST, after the BIOS splash screen there's nothing but a blinking, horizontal cursor. The keyboard's unresponsive. When restart the PC it boots regularly and quickly.

If I turn off my PC and turn it back on reasonably quickly (under an hour), it boots fine. More than that and I get the flashing cursor until I restart.

My BIOS is all stock settings except for a small v increase for RAM stability.

My drivers are up to date. The only hardware change is a design tablet. I still have the problem with all peripherals (except monitors) unplugged.

Thanks for any suggestions

Mike
Edited by makecoldplayhistory - 3/10/11 at 4:25pm
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post #2 of 13
Thread Starter 
bump
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My do-it-all rig
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CPUMotherboardGraphicsGraphics
AMD K15 970A-D3P NVIDIA GeForce GTX 660  NVIDIA GeForce GTX 460 
RAMRAMHard DriveOptical Drive
Kingston  Kingston  Crucial M4 64Gb, 4x 1Tb, 1x 500Gb WD Caviar Black LG LiteScribe GH24 
OSMonitorKeyboardPower
Win 10 x64 LG E2350 23" 1920x1080 / Samsung 19.5" 1366x768 Razer Lycosa (Mirror Edition) Corsair HX850w 
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post #3 of 13
sounds like a dead or dying motherboard. pull the ram out, see if it beeps.
post #4 of 13
Thread Starter 
All the RAM?

Just tried it. Beeps and no POST. The PC always boots if it's been on or on the second attempt.

What does removing the RAM prove?

Thanks
My do-it-all rig
(17 items)
 
  
CPUMotherboardGraphicsGraphics
AMD K15 970A-D3P NVIDIA GeForce GTX 660  NVIDIA GeForce GTX 460 
RAMRAMHard DriveOptical Drive
Kingston  Kingston  Crucial M4 64Gb, 4x 1Tb, 1x 500Gb WD Caviar Black LG LiteScribe GH24 
OSMonitorKeyboardPower
Win 10 x64 LG E2350 23" 1920x1080 / Samsung 19.5" 1366x768 Razer Lycosa (Mirror Edition) Corsair HX850w 
CaseMouseMouse PadAudio
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Creative SupremeFX X-Fi sound card 
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My do-it-all rig
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CPUMotherboardGraphicsGraphics
AMD K15 970A-D3P NVIDIA GeForce GTX 660  NVIDIA GeForce GTX 460 
RAMRAMHard DriveOptical Drive
Kingston  Kingston  Crucial M4 64Gb, 4x 1Tb, 1x 500Gb WD Caviar Black LG LiteScribe GH24 
OSMonitorKeyboardPower
Win 10 x64 LG E2350 23" 1920x1080 / Samsung 19.5" 1366x768 Razer Lycosa (Mirror Edition) Corsair HX850w 
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CoolerMaster 690 Razer Mamba 2012 Razer Goliath XL Logitech X-530 speakers 
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post #5 of 13
Set your voltages manually,
Whats your RAM speed, timings, voltage?
Sometimes happen to me too, but only if an overclock is unstable( comp cant boot, but after turning ON-OFF the power supply will boot).
You may try a little overclock
Edited by IOSEFINI - 3/10/11 at 4:43pm
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post #6 of 13
Quote:
Originally Posted by makecoldplayhistory;12685804 
All the RAM?

Just tried it. Beeps and no POST. The PC always boots if it's been on or on the second attempt.

What does removing the RAM prove?

Thanks

It's a quick and dirty way to see if the motherboard is dead. No beep on missing RAM (with a CMOS speaker present of course) means dead board.


I would suggest now bench testing your motherboard, here is a great write-up on how to do just that:
http://www.techsupportforum.com/forums/f255/how-to-bench-test-your-system-171424.html
With thanks to TechSupportForum
Edited by t0adphr0g - 3/10/11 at 5:56pm
post #7 of 13
were you having problems with the ram, that you upped the volts?
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post #8 of 13
Thread Starter 
Thanks all. I'll benchtest the mobo when I get home.

I was having stability issues (with no OC) and 4 sticks of RAM. The stock voltages in the BIOS to the RAM were 1.55v. The RAMs voltages say 1.8v-1.95v. Running at 1.7999v and 4 sticks of RAM, I haven't had any system freezes (the previous problem). About a month after upping the RAM voltages, the cold-boot issue began.

When I was trying to solve the system freezes (RAM issue) I ran memtest overnight without a problem so I'm 99.99% sure that the RAM itself isn't the problem. I can't remember the timings of the RAM - they're stock though. 7-7-7-20, according to the Mushkin site.
Edited by makecoldplayhistory - 3/10/11 at 7:53pm
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Kingston  Kingston  Crucial M4 64Gb, 4x 1Tb, 1x 500Gb WD Caviar Black LG LiteScribe GH24 
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Win 10 x64 LG E2350 23" 1920x1080 / Samsung 19.5" 1366x768 Razer Lycosa (Mirror Edition) Corsair HX850w 
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My do-it-all rig
(17 items)
 
  
CPUMotherboardGraphicsGraphics
AMD K15 970A-D3P NVIDIA GeForce GTX 660  NVIDIA GeForce GTX 460 
RAMRAMHard DriveOptical Drive
Kingston  Kingston  Crucial M4 64Gb, 4x 1Tb, 1x 500Gb WD Caviar Black LG LiteScribe GH24 
OSMonitorKeyboardPower
Win 10 x64 LG E2350 23" 1920x1080 / Samsung 19.5" 1366x768 Razer Lycosa (Mirror Edition) Corsair HX850w 
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post #9 of 13
I have Mushkin Enhanced Blacklines and my timings (on the ram sticker) are kind of funny at 1600MHz 7-9-7-24 @1.65v. maybe there is part of your problem. I mean I know you said you ran MEMtest but maybe you keyed in the incorrect values.
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post #10 of 13
Try another power supply as well ,it can be a dieing power supply.
I had this flashing cursor issue in the past with my 770-UD3.
Changing power supply Chieftec 650 to Corsair 400 helped ,but also i ve upped the voltage to the DDR 2 Geil memory that i ve had to 2,1V from 1,9V.
So one of them helped for sure smile.gif

I would also do some Check Disk to the harddrive boot partiton.
Edited by Dromihetes - 3/11/11 at 12:52pm
   
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