Speaking too soon... (Self-build problems!)

Jingo · 20-01-2011, 12:16

After praising the past two years of unfaltering use on my self-build in another thread, I woke up to a machine that would not power up whatsoever

After testing plug sockets and power cables and finding them to be fine I noticed there was no light on the psu when connected to a working socket.

After obtaining a replacement psu and setting everything up - I'm still getting nothing, no lights on motherboard, no booting action whatsoever (The replacement psu does not have a light on it to check btw).

This leads me to believe that it must be:

- the power switch connection? (but there's still no light on the motherboard).

- the motherboard has died when the psu went? (There was no 'bang', minor explosion or incident of any sort - the machine powered down as normal on last usage and then simply offered nothing the next morning).

- Something I have missed - it could be something simple or silly I have missed or not known to have checked?

Any ideas or knowledge anyone has would be really appreciated

Thank you

Burble · 20-01-2011, 12:19

Buggered motherboard would be my guess. Have a close look and see if any of the capacitors (they look like small cans) are bulging.

The power switch is unlikely but it's worth trying - get yourself a jumper and short the pins that the power switch connects to.

Jingo · 20-01-2011, 12:35

I regrettably think you might be right Burble

There's usually a little green led on when a power supply is connected and turned on but currently nothing!

The capacitors all 'look fine' to me but I'm guessing the motherboard could easily be shot without any visually noticable damage...

Burble · 20-01-2011, 12:50

Quote:

Originally Posted by Jingo

I'm guessing the motherboard could easily be shot without any visually noticable damage...

It can indeed. Some components are more likely to show physically when they're dead but most won't.

Jingo · 20-01-2011, 13:07

OK thanks for your help Mr Burbs - I think i'll be finding a new MB to hopefully solve the problems... I just dislike the idea of having to spend out more dollar, faff around setting up mirror raids, reinstallations of umpteen programmes and all the other gumf!

Karl mentioned about Knoppix to help ease the transfer so it might not be too bad

Jingo · 20-01-2011, 19:11

Low and behold the problem *appears* to be fixed!

....

I've noticed that the psu came with some sort of 'extending' cable for the 4-pin. I've removed this and the mobo light came on!...

Now the new psu is firing up the machine, it appears to be acting as per normal...!

Fingers crossed this is problem solved - Thanks for advice all who responded on here and msn

20-01-2011, 12:16	#1
Jingo Smother me in chocolate and eat flapjacks with it! Join Date: Sep 2008 Location: North Somerset Posts: 1,854	Speaking too soon... (Self-build problems!) After praising the past two years of unfaltering use on my self-build in another thread, I woke up to a machine that would not power up whatsoever After testing plug sockets and power cables and finding them to be fine I noticed there was no light on the psu when connected to a working socket. After obtaining a replacement psu and setting everything up - I'm still getting nothing, no lights on motherboard, no booting action whatsoever (The replacement psu does not have a light on it to check btw). This leads me to believe that it must be: - the power switch connection? (but there's still no light on the motherboard). - the motherboard has died when the psu went? (There was no 'bang', minor explosion or incident of any sort - the machine powered down as normal on last usage and then simply offered nothing the next morning). - Something I have missed - it could be something simple or silly I have missed or not known to have checked? Any ideas or knowledge anyone has would be really appreciated Thank you __________________

20-01-2011, 12:35	#3
Jingo Smother me in chocolate and eat flapjacks with it! Join Date: Sep 2008 Location: North Somerset Posts: 1,854	I regrettably think you might be right Burble There's usually a little green led on when a power supply is connected and turned on but currently nothing! The capacitors all 'look fine' to me but I'm guessing the motherboard could easily be shot without any visually noticable damage... __________________

20-01-2011, 13:07	#5
Jingo Smother me in chocolate and eat flapjacks with it! Join Date: Sep 2008 Location: North Somerset Posts: 1,854	OK thanks for your help Mr Burbs - I think i'll be finding a new MB to hopefully solve the problems... I just dislike the idea of having to spend out more dollar, faff around setting up mirror raids, reinstallations of umpteen programmes and all the other gumf! Karl mentioned about Knoppix to help ease the transfer so it might not be too bad __________________

20-01-2011, 19:11	#6
Jingo Smother me in chocolate and eat flapjacks with it! Join Date: Sep 2008 Location: North Somerset Posts: 1,854	Low and behold the problem appears to be fixed! .... I've noticed that the psu came with some sort of 'extending' cable for the 4-pin. I've removed this and the mobo light came on!... Now the new psu is firing up the machine, it appears to be acting as per normal...! Fingers crossed this is problem solved - Thanks for advice all who responded on here and msn __________________

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20-01-2011, 12:19	#2
Burble Rocket Fuel Join Date: Jul 2006 Posts: 7,826	Buggered motherboard would be my guess. Have a close look and see if any of the capacitors (they look like small cans) are bulging. The power switch is unlikely but it's worth trying - get yourself a jumper and short the pins that the power switch connects to.