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Pc will not boot

R

rage4order

Gawd
Joined
Oct 4, 2004
Messages
795
Today I had a house full of kids. My computer was running perfectly fine until one of them comes down to tell me it won't turn on. After taking a look at it and trying to get it to boot I have temporarily given up. I asked the last person who was using it what happened and all they said was they turned it off by pressing the power button. Any ideas what might be the problem? I have turned it off and on at the power supply and that did nothing. I am getting lights, fans turn on and my drive trays also open and close, just no boot. Not getting any beeps either.
 
rage4order said:
Today I had a house full of kids. My computer was running perfectly fine until one of them comes down to tell me it won't turn on. After taking a look at it and trying to get it to boot I have temporarily given up. I asked the last person who was using it what happened and all they said was they turned it off by pressing the power button. Any ideas what might be the problem? I have turned it off and on at the power supply and that did nothing. I am getting lights, fans turn on and my drive trays also open and close, just no boot. Not getting any beeps either.
Click to expand...

it could be the HDD or you best way is to put the DVD windows 10 in and do recovery
 
rage4order said:
Today I had a house full of kids. My computer was running perfectly fine until one of them comes down to tell me it won't turn on. After taking a look at it and trying to get it to boot I have temporarily given up. I asked the last person who was using it what happened and all they said was they turned it off by pressing the power button. Any ideas what might be the problem? I have turned it off and on at the power supply and that did nothing. I am getting lights, fans turn on and my drive trays also open and close, just no boot. Not getting any beeps either.
Click to expand...
In my case, it was a dog that climbed behind my desk during a storm and bent my hdmi cable to the monitor
 
Ok, after a little more troubleshooting I don't have power to my usb ports. I'm leaning towards bad motherboard.

AORUS said:
it could be the HDD or you best way is to put the DVD windows 10 in and do recovery
Click to expand...
It won't even post.
 
Clear the BIOS and load optimized defaults and test again with everything removed except single stick of memory and video to a monitor?
 
Pull the entire computer apart, clean it all out, and rebuild it.

A PITA yes, but a good chance something has come loose - a DIMM, a SATA cable, something. And while you have it apart, good time for a deep dusting, redo TIM, etc.

When you put it back together, start with just CPU, 1 DIMM, and integrated video - see if the barebones won't at least POST.
 
rage4order said:
Pulled the battery and cleared cmos and same thing so far.
Click to expand...

Can you enter in BIOS?. If not, then my best bet are RAM and/or PSU... as said above a loose ram stick can cause what you described. And a faulty PSU with one of the minor rails faulty (5v, 3.3v) can also show the same behavior.
 
Can't enter bios. No beeps, no post, no nothing. If my ram were bad wouldn't I at least get beeps?? I'm taking everything apart right now. Ill check back in a few.
 
Ok, I've taken it apart. Switched around my ram, took one stick out, removed video card, and unplugged all disc drives and exact same result. I'm leaning towards either psu or the board. Probably gonna start off replacing the psu.
 
Ok, psu appears to be good. I swapped the one from my working pc in and same result. Should I be looking for a new motherboard now?
 
Is there a CD or DVD in the ROM tray? Sometimes that will do it.
 
Speedeu4ia said:
speaking of this my new win 10 setup hangs on boot with a disc in the drive, even though I have boot from drive disabled. Any fix for that
Click to expand...
Have you checked the boot order in bios? Make sure boot from HDD is before boot from disc. Even though you have it disabled it could still be "seeing" the disc.
 
Try removing all the ram and see if you get any beeps--you should. No beeps=bad motherboard or cpu issue. If you can test the cpu in another system you can narrow it down further.
 
SamirD said:
Try removing all the ram and see if you get any beeps--you should. No beeps=bad motherboard or cpu issue. If you can test the cpu in another system you can narrow it down further.
Click to expand...
Pulled ram, no beeps. Unable to test cpu in another system.
 
I have an IBM system like that. I luckily had a twin of it that I could kinda figure out what was going on, but I never narrowed it down to the power supply, motherboard, or cpu. I actually put the cpu in another system and it worked there but would blue screen when going into windows although a memtest worked fine as well as sitting in the bios doing nothing. The motherboard on the original system has some pretty badly swollen caps so I attributed it to the motherboard even though I never really tested the power supply or cpu.

Now that I'm thinking about it all over again, since I have a twin system I should swap the power supply and see what happens and then also try the cpu from the twin in the known working system to rule out the cpu being bad. I guess I still have quite a bit more diag work to do...
 
Ok, a final update. I remembered I had a spare motherboard from a previously screwed up pc(damn kids!). I swapped it out with this one and everything is working fine. Looks like the sudden shutdown fried something on the motherboard. Thanks for all the replies and help!
 
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