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random reboot issue


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6 replies to this topic

#1 Rian

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Posted 31 July 2009 - 07:59 PM

I am having issues with my computer in which it randomly reboots at any time without warning. I sometimes have to physically push the button to turn it back on. It can reboot over and over again several times or work fine for several hours. I tried to boot into safe mode and it still reboots there as well. Basically the computer just turns off or reboots at any moment without any warning at all.

I checked in the forum here on viruses and malware and was given a clean bill of health in that aspect of the computer. All of my software is also updated. I have also checked about the drivers and found that none of those are out of date as well. I have not installed anything new or anything like that. I have also disabled automatic restart to give me a blue screen of death error message but I never get one.

I next checked the temperature of my computer and found it to be normal. I was getting readings between 35C and 40C depending on what I was doing. I have checked the fans, which all seem to be working properly. I also clean my computer regularly and have here recently again.

I've done about everything I know to diagnose and try to fix this issue but I have not been successful. I am sure it is a hardware issue now, but I am not sure where to go from here in how to figure out exactly what's wrong with the machine.

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#2 sonicjet

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Posted 31 July 2009 - 11:38 PM

I'll make a good bet it's your RAM or your mobo.

#3 ahola

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Posted 01 August 2009 - 12:34 AM

I'll make a good bet it's your RAM or your mobo.



I agree with sonicjet. I've seen this with bad memory or the motherboard. I've also seen this with the power supply being faulty as well.

#4 fairjoeblue

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Posted 01 August 2009 - 01:15 AM

What brand is the computer ?

If it were a memory issue it should show a BSOD, not just reboot.

I'm saying power supply !
OCZ StealthXstream 700W,Gigabyte GA-EP45-UD3R , E8500, Arctic Freezer Pro 7, 3GB G.Skill PC8500,Gigabyte Radeon HD 4850 OC [1GB ], Seagate 250GB SATA II X2 in RAID 0, Samsung SATA DVD burner.

#5 starcraftmaster

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Posted 01 August 2009 - 01:29 AM

i also seen windows xp do that a lot(not sure why but)
theres a registry thing you can do so it will make you see a bsod error not just a random restart

but as sonicjet its the ram most liky
or overheating some where
i heard powersupplys can do that

get memtest or microsoft memory diagnostics

#6 Rian

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Posted 01 August 2009 - 01:58 AM

First, thanks for the replies.

I had basically narrowed it down to either a RAM, power supply, or motherboard issue as well, so I guess I have been on the right track. I am basically looking for some direction in trying to troubleshoot the issue because some of these things I can do myself. I can replace the RAM or power supply, but wouldn't dare touch the motherboard. I am just having trouble discerning what one of those issues it is. The strange part of the whole situation is the lack of a BSOD even though automatic restart is disabled. If I could just find some kind of error message that would point me in the right direction it would be helpful. I also find it really strange that sometimes it doesn't just reboot, but turns itself off entirely.

As for the procedural question about the brand, it's a Dell that is about five years old.

Basically I'd just like to be pointed in the right direction of a way to troubleshoot the issue and see if it isn't something i can do myself in short order.

#7 starcraftmaster

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Posted 01 August 2009 - 07:43 AM

I also find it really strange that sometimes it doesn't just reboot, but turns itself off entirely.


it could be the psu then

you know what you should do
get a live cd linux boot(ubuntu is pretty easy, get that one)
and boot it from the cd and leave the computer on for a long time and see if it does the same thing
than you will know its a hardware problem for sure




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