Pc Doesnt Turn On

my friends pc doesnt turn on.. he was checking his ram, and then he put everything back, and nothing turns except the power button LED that flashes every 3 sec until he turns the puter off.

he didnt add any ram or anything. he checked with other ram and different slots but still nothing.. any ideas? its a dell btw


cleared cmos now led flashes faster..

 

Did he/you unplug any of the SATA/power supply cables?

 

My opinion :

I think it's just because it's a Dell, and their basically engineered to blow up as soon as you screw with it or the warranty runs out..

Realistically :

Sometimes on PC's theres a big On\Off switch on the back, did you accidentally flip it?

 

I think they have that on some PSU's, that would have been my second suggestion

 

Ok its a dell open the box in the middle the proccer jank it out put it in works again

 

the led wont be flashing if the power was off..

the processor he said is almost impossible to take out

 

A virus can cause this... What kind of security did he have for his pc?

 

any beeps?

 

no beeps, no viruses

 

Wow, don't take out the CPU, lol?

That is highly unlikely if there is no POST.

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Okay, so make sure that--this is an older computer I presume--he has all of the cables tightly fastened. It sounds like something I have had occur in a PC that I have messed around with. So, let me get ready to explain a little deeper:

2 minutes later:

The image below has a little red circle around an important connector that can cause your exact issue. Unplug that, then replug it in. If that doesn't work, repost and I will look around for other things that makes Dell's flash. Lol

I wont go into detail about what all that does, just try it.

 

i'll go into detail...

it provides primary power to the CPU.

and to be blunt if it's not posting it's likely the board, though it could be...

CPU, RAM, VGA

 

Let's start with the stuff that could be loose then work into the ESD there Xlink . . sheesh.

 

well u can try an tell him to remove all the ram sticks but leave one.. remove all pci cards and so on

use onboard an so on an see if it boots up and from what i see u say nothin comes on the screen

if he has a xp cd or can get one from someone... try a repair install and also if that does not work tell him to try and do a

FIXMBR - http://askbobrankin.com/fix_mbr.html

BOOTCFG/REBUILD - done in the same part as the fixMBR

also if he has another mon tell him to try that might be the mon is done with

THIS MANY BE CUZ OF MANY MANY THINGS WITH OUT US KNOW WHAT HE HAS SOFTWARE BEIN ADDED/REMOVE

HARDWARE BEIN REMOVE/ADDED/MOVED and so on so

yea