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Windows 7: Computer randomly doesn't start

24 Mar 2015   #1
Grendaable

Windows 7 Ultimate 64
 
 
Computer randomly doesn't start

Hello !

I'm from Poland so there might be problems with my english, please, forgive me !

I had some problems with my PC, had a few BSOD(unfortunately i do not have them), now my PC randomly reboots. For example when i play CS:GO, Unturned, Guild Wars 2, or when i'm watching YouTube. Just reboot, no warning, no high temp., sometimes the sound freezes.

What's more interesting - sometimes after that reboot or after the night (i turn off PC, nothing wrong happens, go to sleep, when i wake up and turn on PC it happens) my PC just doesn't turn on. I press the POWER button, CPU starts, but BIOS sends 4 long beeps, break, 4 long beeps. I checked it, on my motherboard and BIOS (Award) it means problems with graphic card.

What's more - i had a few times colorful stripes, then blue screen (not BSOD) then reboot.

So, the problem is - i have random reboots and sometimes my PC does not starts.

Thanks in advance for help !


My System SpecsSystem Spec
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24 Mar 2015   #2
oscer1

win 7 64 bit
 
 

Hi
Do you have another graphics card that you could try? What's make and model of power supply and wattage?
My System SpecsSystem Spec
24 Mar 2015   #3
Grendaable

Windows 7 Ultimate 64
 
 

Damn, im in hurry and wanted to post it before i leave and forgot. I have no graphic, no power supply to change. It is corsair 500 w kinda cant find exactly what model it is, im away from home i Just remember it says Corsair CX500.

Edit - my PC is cleaned from dust with compressed air, and the problem with 4beeps sometimes goes off when i push cables from power supply in and out from the power supply (i Just push them in and out from power supply so they move inside it, i think they might get a better connection then) and it sometimes helps.
My System SpecsSystem Spec
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24 Mar 2015   #4
oscer1

win 7 64 bit
 
 

The minimum for that graphics card is 500 watts but you have other things in the computer that uses power I would want a 650 watt power supply seasonic or xfx supplies are top quality. I don't think your motherboard has on board graphics maybe you could barrow a card and power supply from a friend.
My System SpecsSystem Spec
24 Mar 2015   #5
Grendaable

Windows 7 Ultimate 64
 
 

I bought this PC 3 years ago and have problems for 1-1,5 year. I never thought my power supply is too weak. There is a problem - i asked and no one wants to borrow me their graphics or power supply. So, right now it is only thing i can do? I must go now, will try to borrow something.

EDIT: Luckily managed to get spare graphic card - Gigabyte GTX 970 G1 Gaming - and... the same problem, every fan is working, system does not starts, 4 long beeps, break, 4 long beeps. So... power supply is damaged ?
My System SpecsSystem Spec
25 Mar 2015   #6
TVeblen

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

Where did you get the information that a 4-beep code equals graphics card? And are you sure that is the pattern (4 beeps).

The reason I ask is that the Award BIOS is very difficult to pin down when it comes to beep codes. This is because the codes can be customized by the motherboard manufacturer:

Computer randomly doesn't start-beep2.jpg

_
Here is what they give you in the manual for the MA770T-UD3 motherboard:
_
Computer randomly doesn't start-beep1.jpg

_
So if you truly have a 4 beep code going on then neither Gigabyte or Award/Phoenix is being any help. You may be just stabbing in the dark if you are assuming that a 4 beep code applies to your board.

You might try re-seating your RAM, or running with just one stick (switch them to try each one) just as a quick test for memory errors.

When video card companies say that a minimum watt power supply is recommended, they mean that is the minimum wattage for a typical system with their graphics card, not that you need that amount of wattage for the graphics card. Graphics cards can use about 150-200 watts at full load, some high end cards more. Using a power supply calculator is the best way to determine the best size.

If you have or can borrow a multimeter you could do a basic test on the power supply to see if there is an obvious problem.


My System SpecsSystem Spec
25 Mar 2015   #7
Jacksleo

Windows 7 Ultimate 64
 
 

When I have run into the 4 long beeps on power on with the Award MB its the CPU fan check failing.
My System SpecsSystem Spec
03 Apr 2015   #8
Grendaable

Windows 7 Ultimate 64
 
 

Okay, the problem was with motherboard. I do not know exactly where was the problem but i know my motherboard was broken Thanks guys ; >
My System SpecsSystem Spec
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