Pc completely dead after restart?

[AirTimeAzn]

Hi there, i've had my pc for about two years now and it's been running flawlessly, until i restarted it today, it came up and said something about no keyboard connected, hanged at a blank black screen for a long time before i force restarted it, and then proceeded to not power up.

I simply restarted my pc to install a windows update and now any time i try to power it on it powers up for a split second and then powers down. The red cpu led flashes on in this time and the green SB_PWR led stays on the whole time.

The fans, including the psu fans all power on for a split second. Does anyone have any idea what would cause this? It seems the fault would lie with the psu/cpu/mobo but it seems really odd that it would just die randomly at a restart with no warning after running perfectly for two years.

Pc specs

Overclocked CPU Overclocked Intel® Core™i7-2600k Quad Core (3.40GHz @ max 4.80GHz)
Motherboard ASUS® P8P67 PRO (NEW REV 3.0): QUAD USB 3.0/SATA 6Gb/s
Memory (RAM) 8GB KINGSTON HYPER-X GENESIS DUAL-DDR3 1600MHz, X.M.P (2 x 4GB KIT)
Graphics Card 1536MB NVIDIA GEFORCE GTX580 - 2 DVI,mHDMI - DirectX® 11, 3D Vision Ready
Memory - 1st Hard Disk 1TB WD CAVIAR GREEN WD10EARS, SATA 3 Gb/s, 64MB CACHE
1st DVD/BLU-RAY Drive 24x DUAL LAYER DVD WRITER ±R/±RW/RAM
Power Supply CORSAIR 750W TX SERIES (TX750) 80+ ULTRA QUIET PSU (£89)
Change to: CORSAIR 850W TX SERIES (TX850) 80+ ULTRA QUIET PSU (£99)

Also, i looked inside my psu and it had a weird white glue looking liquid over some of the parts, i googled it and some people said it was meant to be there, other people said it was something leaking? Any comfirmation on that would be great.

I called support but it seems like i'm mostly on my own, if anyone would be able to help me to identify which component has gone bad i'd be greatly appreciated since i'm a bit dead in the water without it!

Thanks.

 

[Deleted member 17413]

I had a problem very similar to what you are discribing with an old HP desktop,
First time it happened it was actually the Hard Drive that had died...s o it was powering up, failing to find an OS or basic software and then shutting off.

(After i replaced the hard drive it was alright for about a year and then just completely died (wouldnt even turn on) and turned out the power unit had given in.)

It was all pretty much just old age setting in, more you use it the quicker it can wear out (particularly if you dont clean it out and keep the fans clear)

You say two years old? Do you use it quite intensively? Have you heard any faint "click" type noises recently?
Either way its likely to be a repair shop job to properly diagnose but i would take first bets on the HDD having gone.

 

[WhatCanIKeep?]

The notes on the system say that you were told to disconnect components that were connected to your system (external and internal). For example Optical Drive, HDD, Graphic card, RAM (memory). Once disconnected please turn the system on and see if you get any continuous beeps, if you do then please insert the Memory sticks back and turn the system on, if you then get beeps then connect your Graphic card, after this please let us know if you get any display or not.

If you don't get any beeps then unfortunately it could be the Motherboard, CPU or Power Supply. These components may still be under Manufactures Warranty and you will be able to send these back to us so we can send them to the Manufacture.

As you may not have a spare Motherboard, CPU or Power Supply you may want us to bring the system back or take it to a local Computer shop for them to confirm what it could be.

If you want us to bring it back or would like us to talk you through on how to remove the Graphic card, RAM (Memory) or any other component(s) then please call our Support team.

0844 499 4000
http://www.pcspecialist.co.uk/contact-us/
http://www.pcspecialist.co.uk/call-waiting/

 

[AirTimeAzn]

Small update. i just tried to jump start the PSU using the pin method, and nothing happened which i assume means my psu has died?

I'm not too sure though because if i leave the psu turned on and plugged in, the green motherboard power led stays lit up. Is that conflicting or can my psu still be faulty with that light staying on?

Also to answer the above mod post, i did that while on the phone and nothing changed, just still the red cpu led flicker and split second fan life and dead again. The guy on the phone said i wouldn't be able to send it back because theyre backlogged by a few months or something? And that i'd have to find out the source of the problem before sending it in.

 

[Deleted member 17413]

Small update. i just tried to jump start the PSU using the pin method, and nothing happened which i assume means my psu has died?

I'm not too sure though because if i leave the psu turned on and plugged in, the green motherboard power led stays lit up. Is that conflicting or can my psu still be faulty with that light staying on?

Also to answer the above mod post, i did that while on the phone and nothing changed, just still the red cpu led flicker and split second fan life and dead again. The guy on the phone said i wouldn't be able to send it back because theyre backlogged by a few months or something? And that i'd have to find out the source of the problem before sending it in.

Well to me... if theres a light on the power supply unt is working... so it may be a problem with the motherboard (or as i mentioned earlier) the HDD with the operating system
the whole point of going through step by step with components being added is to try and pinpoint when the fault kicks in.
If the power lights are coming on on the motherboard then it has power...

If PCS have a big backlog like you say then best course of action is to take it to a local repair shop, with luck you will get a better turn around time.
Just try to scout about first for a good store....

 

[vanthus]

Small update. i just tried to jump start the PSU using the pin method, and nothing happened which i assume means my psu has died?

I'm not too sure though because if i leave the psu turned on and plugged in, the green motherboard power led stays lit up. Is that conflicting or can my psu still be faulty with that light staying on?

The motherboard led can stay lit with a faulty PSU,If you got nothing with the pin method I'd say it's pretty conclusive the PSU is faulty.Personally I prefer to test the PSU with a multimeter.
As suggested,probably best take it to a repair shop,or alternatively if you can get your hands on another PSU from somewhere that would confirm the PSU is faulty or not,then you could go ahead and buy a PSU if you're confident doing it yourself.

 

[AirTimeAzn]

Thanks for the reply guys, I'll try to get my hands on a spare PSU to check if its that. Seems like the most likely reason.

If its faulty does the fact when I plug it into the motherboard all the fans start up for a split second still suggest its faulty?

 

[vanthus]

Thanks for the reply guys, I'll try to get my hands on a spare PSU to check if its that. Seems like the most likely reason.

If its faulty does the fact when I plug it into the motherboard all the fans start up for a split second still suggest its faulty?

As mentioned it could still be a Motherboard or CPU issue,but I think the PSU is favourite and probably the easiest component to eliminate first.