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Bootloops, blackscreen and so on, Help please.

post #1 of 8
Thread Starter 
Okay, so heres the story;

My barebone PC started doing some weird bootloops, it turns on and off several times before booting and sometimes the screen remains black, other times it boots just fine. Even if the screen is black i can hear through my headphones that it boots fine into the desktop but the screen will remain black.

PC Specs:

* CPU: Intel i5 3570K
* GPU: NVIDIA GTX770
* RAM: Corsair Vengence 8GB (1333/1600Mhz with standard timings)
* Motherboard/Chassi: Shuttle SZ77R5
* PSU: PC63J 500W

Usually it boots just fine 7/10 times. However other times it will take hours, literally hours for me to get ot to boot correctly. The bootloop usually ends up changing a few bios settings before the screen can actually show an image. The settings that change is Primary Display; From PEG to Auto (The only options are: Auto, PEG, SG, IGFX) and RAM frequency: from 1600 to 1333 (By switching from the XMP Profile to Automatic), If i keep these settings the same bootloop/blackscreen thing still occurs.

Sometimes i have to force it to bootloop by holding down the powerbutton for 30 seconds (i found this out by trial and error, i can force a bootloop by just holding down the power-button for approximetly 30 seconds). Sometimes i have to force the bootloop because when it doesnt bootloop at all and just boots with a black screen no image will ever appear (but it still boots to Desktop), so the bootloop seems to be changing stuff inorder for it to boot properly.

When i cant get it to boot properly: I unplug everything and press the power-button a few times / hold it down for 30 seconds, it usually will work, other times it wont as i described above. It can take hours before it just works for no apparent reason.

Things ive done trying to diagnose this:

* Taking out the GFX out of its PCI-E slot and running with the integrated graphics WORKS, no bootlooping, never blackscreen, i cant even force the bootloop to occur with the "method" above.
* Tourturetesting the GFX, its fine, holds normal temps etc. So perhaps its the PSU/GFX/Motherboard that is dying?
* Trying with only 1 stick of RAM in all of the slots. (Since the bootloops affect the RAM settings it could be the RAM!? maybe?)
* Trying without a harddrive plugged in has no effect.
* Reinserting all cables in the PC.
* Resetting BIOS has no effect. Running default has no effect on the "phenomenon" either.
* I've cleaned the PC from dust completely.
* Nothing is overheating.

This happened last year and i switched motherboard, psu and the chassi, the problem didnt occur there, but recently i was in need of my good old Shuttle again and had to use the parts in there again and it was fine, until somewhat recently (2 months ago) the bootloop problem had occured yet again and im 99.99% sure i hadn't done ANYTHING new on it. (I ignored it to an extent since if the PC had been off overnight it would 99/100 times boot just fine, so a Cold boot was always reliable, warm ones; not so much.)

Maybe the PSU/GFX is dying, but when it boots fine everything runs completely fine during torture-tests overnight etc, no crashes or anything.
Maybe the RAM!?
Or Maybe the motherboard is dying.

After this giant wall of text: What is next? Can some kind soul help my poor little Shuttle?
Edited by dandy- - 10/16/15 at 10:33pm
post #2 of 8
Thread Starter 
Bump, i need some ideas since im on a tight budget.
post #3 of 8
Thread Starter 
Bump.
post #4 of 8
You could gamble and try replacing the PSU, but the overall flakiness sounds like a motherboard about to give up the ghost completely.
Lil' Roy Taylor
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Lil' Roy Taylor
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post #5 of 8
"* Taking out the GFX out of its PCI-E slot and running with the integrated graphics WORKS, no bootlooping, never blackscreen, i cant even force the bootloop to occur with the "method" above."
indicates that there is something wrong with the PCI-E slot or the graphics card. Unless you have spare parts to plug in, it is very difficult to trouble shoot these kinds of issues. The fact that you can run on integrated graphics without problems is the key indicator here. I don't know much about the reliability of these kinds of PSUs.
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Intel i7-4790k  ASUS Sabertooth Z97 Mark 2 ASUS GTX 960 2GB STRIX 16GB Crucial Ballistix Tactical DDR3 1600 
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Photo Editing PC
(11 items)
 
HTPC
(11 items)
 
 
CPUMotherboardGraphicsRAM
Intel i7-4790k  ASUS Sabertooth Z97 Mark 2 ASUS GTX 960 2GB STRIX 16GB Crucial Ballistix Tactical DDR3 1600 
Hard DriveOptical DriveCoolingOS
256 GB Samsung 850 PRO WD 2TB Caviar Black Noctua NH U12S Win8.1 
MonitorPowerCase
NEC MultiSynch P221W SeaSonic G 650 Fractal Design Define R5 
CPUMotherboardRAMHard Drive
Intel i3-3225 Gigabyte H77N-WiFi 8GB Crucial Ballistix Tactical DDR3 1600 120 GB Samsung EVO 840 
Hard DriveOptical DriveCoolingOS
1TB WD Blue LG Blue Ray DVD Reader Noctua NH-L9i Win7 
KeyboardPowerCase
Logitech K-400 Seasonic G360 Fractal Designs Core 500 mITX  
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post #6 of 8
Thread Starter 
Bump

Perhaps another clue, some of the GPU's information isnt displayed in GPU-Z or NVIDIA Inspector.

Sometimes its the FAN speed missing, sometimes the Memory/GPU clock missing values. But the card still runs fine with no temp issues.
post #7 of 8
Quote:
Originally Posted by dandy- View Post

Bump

Perhaps another clue, some of the GPU's information isnt displayed in GPU-Z or NVIDIA Inspector.

Sometimes its the FAN speed missing, sometimes the Memory/GPU clock missing values. But the card still runs fine with no temp issues.

Then if that's the case, you most likely are going to have to replace the GPU.
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The Beginning.
(18 items)
 
Work Test Machine
(10 items)
 
Toshi
(12 items)
 
CPUMotherboardGraphicsRAM
FX-8120 GA-990FXA-UD3 Sapphire Tri-X R9 290X 8GB GDDR5 OC Edition 16GB G.Skill 2133Mhz 
Hard DriveHard DriveHard DriveHard Drive
Seagate 500GB 7200rpm 6Gb/s Seagate 1TB 7200rpm 6Gb/s Samsung 850 PRO 256GB Seagate 2TB 7200rpm 6Gb/s 
Optical DriveCoolingOSMonitor
Sony Optiarc Corsair H60 Win7HP64bit/Ubuntu 14.04LTS HP 2310m 1080p @60Hz 
KeyboardPowerCaseMouse
Razer BlackWidow Ultimate Seasonic X750 Gold Cooler Master Storm Stryker Razer Mamba 2012 
Mouse PadAudio
Razer Destructor 2 BF4 Edition Creative Sound Blaster Zx 
CPUMotherboardGraphicsRAM
Intel Core i5 4690k GA-Z97-HD3 MSI HD7950 3GBGDDR5 OC Twin Frozr edition 12GBs G.SKILL 
Hard DriveOptical DriveOSPower
Seagate 500GB 7200RPM  DELL Generic Windows 10 Professional 64bit / Mint 17.3 64bit Seasonic x650 
CaseAudio
Cooler Master Elite 430 Realtek 
CPUMotherboardGraphicsRAM
AMD A8-6410 Toshiba something idk. AMD R5 1GBGDDR5 16GB 
Hard DriveOptical DriveOSMonitor
250GB Samsung 850 SSD Toshiba DVD-RW Windows 10 Pro Terrible. 
KeyboardPowerMouseAudio
Disgusting. Ok. Toshiba Trackbad with horrible buttons. Realtek 
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post #8 of 8
Thread Starter 
Quote:
Originally Posted by ragtag7 View Post

Then if that's the case, you most likely are going to have to replace the GPU.

Cant the PCI-E slot be as likely to be the cause of my problems?

ill be cleaning the PCI-E slot with rubbing alcohol, aswell as the GFX and look for abnormalities (signs of damages) and afterwards ill report back if the issue persists or if i find another clue.

Thank you all for your help/continued help.
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