PC blank display?

Bezzaboy1234

Bezzaboy1234

Bezzaboy1234

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Hi guys,

So recently just repasted my AMD CPU from my HTPC as it was looking a bit dry and crumbly (my fault I don't replace it often enough) put some arctic silver on that I had lying around and reseated as usual, However. Now I am getting absolutely nothing out of the PC. I have checked that its not the cables or the monitor its connecting to by trying all 5 of the monitors and tv's and nothing seems to work. So its gotta be something to do with the PC itself,

The build spec is in the HTPC log in my sig.

I have tried removing and cleaning everything, re-seating all the ram, hard drives, and pretty much everything else, I noticed there was a slight bit of paste on one of the pins when I removed it and so I wiped it with some tissue and put it back in, I wasn't sure if there is a specific cleaning tutorial for cleaning the CPU pins? I was thinking maybe a dab of Isopropyl alcohol would do the trick surely?

None of the pins are the bent, the socket looks fine, I'm tearing my hair out without my HTPC, I use it everyday and every night.

EDIT: The PC does boot, and the hard drives and everything are spinning up. just no display output whatsoever.

Has anyone got any advice?
 
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have you tried a different display port on the gpu? also have you tried re seating the GPU as well and power cables for it?

do you have a on board gpu you could try instead?
 
Bezzaboy1234 said:
Yes it definitely sounds like its booting fine,
Click to expand...

Are you completely sure booting is fine ? You know your computer and you know how long it loads Windows up - so does HDD LED blink during WHOLE booting process and stops until login screen is supposed to show up ? If audio is turned on - you can hear Windows login sound ?
What "no display" means - just black screen with "no signal" message (and monitor LED on), or something suggesting monitor fault rather ?
 
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biuro74 said:
Are you completely sure booting is fine ? You know your computer and you know how long it loads Windows up - so does HDD LED blink during WHOLE booting process and stops until login screen is supposed to show up ? If audio is turned on - you can hear Windows login sound ?
What "no display" means - just black screen with "no signal" message (and monitor LED on), or something suggesting monitor fault rather ?
Click to expand...

I have just tried the sound think, No sound on boot-up, left it on for a good while waiting for the normal windows sounds which take about a minute for it to get to.

I have noticed a faint set of beeping, every 2 seconds a beep beep. very faint to the ear. I'm unsure as to what this is?

No display as in nothing appears on the screen, and none of my monitors recognize there being any output. I have tested this on Four different monitors with exactly the same results.

Anyone know what the double beep is?
 
well we have ruled out the PSU, could be Mobo/ RAM your seeing BIOS right? if so then maybe test RAM 1 slot at a time. Less likely but HDD is next if that tests out.
 
This may be a stupid question, I may have missed while reading through, but when was the PSU ruled out? I've seem loads of PC that all the fans kick in and lights on the Mobo, but the PSU has been faulty and upon replacing it the PC boots fine... may be worth if you've got a spare known working PSU to give that a test just to rule it out, then as Porushinobu says try systematically checking the individual RAM sticks and slots.
 
locrieth said:
This may be a stupid question, I may have missed while reading through, but when was the PSU ruled out? I've seem loads of PC that all the fans kick in and lights on the Mobo, but the PSU has been faulty and upon replacing it the PC boots fine... may be worth if you've got a spare known working PSU to give that a test just to rule it out, then as Porushinobu says try systematically checking the individual RAM sticks and slots.
Click to expand...

fair point, that slipped my mind.
 
I'll try popping in a spare PSU a bit later on see if that fixes the problem,

Not getting any BIOS or POST on the machine whatso-ever regardless of monitor used.

The RAM has always been a bit dodgy, not sure if have some spare DDR3 anywhere but will have a look, Have tried each one individually e.t.c but this has also had no effect.

took the HDD out and put it in a small 2.5" hard drive caddy, works perfectly fine as well as the other 3 drives. So it can't be the HDD.
 
Bezzaboy1234 said:
I'll try popping in a spare PSU a bit later on see if that fixes the problem,

Not getting any BIOS or POST on the machine whatso-ever regardless of monitor used.

The RAM has always been a bit dodgy, not sure if have some spare DDR3 anywhere but will have a look, Have tried each one individually e.t.c but this has also had no effect.

took the HDD out and put it in a small 2.5" hard drive caddy, works perfectly fine as well as the other 3 drives. So it can't be the HDD.
Click to expand...

yeah try that PSU :)
 
I would try the bare minimums in a breadboard test outside the case.

If it posts with just the cpu, ram and PSU, add things until it stops working and you've identified what it is.
 
I have pretty much done this outside the case,

It wont post with the CPU, RAM and PSU, whether its one stick of ram or two.

Not sure where to go from here? It has to be one of the three or the board?
 
Have you tried re-seating the cpu? it needs to lock into place and it's caught me out before.

And have you plugged in the 4 pin cpu connector?

Do you get any beep codes from the internal speaker?
 
it may also be worth googling the model of your mobo and bios error beeps/codes to see if you can identify what the specific error beeps are..
 
Haven't tried the PSU, Not in to try it at the moment.

Have re-seated it several times now, The last time I re-seated it worried me as it simply came out the socket attatched to the CPU cooler, which I can assume isn't good, I will check again if its seated properly.

Everything is plugged in.

As I said earlier in my post it seems to be making a faint double beep:

"I have noticed a faint set of beeping, every 2 seconds a beep beep. very faint to the ear. I'm unsure as to what this is?"
 
Dunno whether this may help... but i found it on a photocopied manual from a website, didn't seem to say about bios error codes in the official Asus manual.

Award BIOS Beep Codes
One short beep when displaying logo - No error during POST
Long beeps in an endless loop - No DRAM installed or detected
One long beep followed by three short beeps - Video card not found or video card memory bad
High frequency beeps when system is working - CPU overheated System running at a lower frequency
 
The only beeps that it seems to be making are two very short 1 second beeps followed by a pause, then another two quick beeps.

Have tried to clear the CMOS and left over night, still does nothing.
 
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