My Old PC - I think it's dead - This is what I've tried

[Pommy192]

Backstory: After moving my old PC to a new and bigger case, and the old top mounted PSU wouldn't reach, I went out to buy a new EVGA 500w PSU.

 

Also, a molex connector powering a fan and front power button LED melted some plastic and smoke came out. This happened out of the blue.

 

Photo: https://www.dropbox.com/s/9m9lqwcebebq3mr/2015-07-26%2014.02.17.jpg?dl=0

 

I don't even recall using the PC after the molex connector sparked when It was in the old case with the unbranded PSU.

 

I've tried many options, I turn it on and It doesn't POST. It turns on for about 5 seconds, restarts and stays on with no beeps.

 

Also I get no video out on the on board.

 

What I've Tried:

• Taking out all the RAM
• Unplugging everything except the 24 and 4 pin power connectors
• Taking out the CMOS battery and leaving it out to test the options above ^^
• Taking out the GPU
• Using the original PSU that came with the cheap case (When it was last working)

 

The specs of this old PC

MB: Acer Aspire X3950

CPU: Intel Core i5 650

GPU: GTX 660 (Taken out)

Old Case With PSU: http://www.scan.co.u...0w-psu-12cm-fan
New PSU: http://www.scan.co.u...le-rail-atx-psu

 

 

Previous Topic http://linustechtips.com/main/topic/414592-evga-500w-bottom-mounted-in-a-coolermaster-n400/#entry5578837

[Sir Asvald]

Backstory: After moving my old PC to a new and bigger case, and the old top mounted PSU wouldn't reach, I went out to buy a new EVGA 500w PSU.

 

Also, a molex connector powering a fan and front power button LED melted some plastic and smoke came out. This happened out of the blue.

 

Photo: https://www.dropbox.com/s/9m9lqwcebebq3mr/2015-07-26%2014.02.17.jpg?dl=0

 

I don't even recall using the PC after the molex connector sparked when It was in the old case with the unbranded PSU.

 

I've tried many options, I turn it on and It doesn't POST. It turns on for about 5 seconds, restarts and stays on with no beeps.

 

Also I get no video out on the on board.

 

What I've Tried:

• Taking out all the RAM
• Unplugging everything except the 24 and 4 pin power connectors
• Taking out the CMOS battery and leaving it out to test the options above ^^
• Taking out the GPU
• Using the original PSU that came with the cheap case (When it was last working)

 

The specs of this old PC

MB: Acer Aspire X3950

CPU: Intel Core i5 650

GPU: GTX 660 (Taken out)

Old Case With PSU: http://www.scan.co.u...0w-psu-12cm-fan

New PSU: http://www.scan.co.u...le-rail-atx-psu

 

 

Previous Topic http://linustechtips.com/main/topic/414592-evga-500w-bottom-mounted-in-a-coolermaster-n400/#entry5578837

Try reseating the CPU

[Pommy192]

Try reseating the CPU

I'll give that a go later!

[WolfysTech]

Turn it off and on again?

[samcool55]

So you have new case and new psu, did you use stand-offs while placing the motherboard?

[Sauron]

Ouch, ouch, ouch.

 

Do you have any friends who will let you test your new power supply with their systems, or their known working psu with yours? If it was DOA and the old one died after sparking, that might be the only problem (and you'd have been very lucky).

[Sauron]

So you have new case and new psu, did you use stand-offs while placing the motherboard?

 

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[BillytheSkids]

Pommy192,

I would also try shorting the switch pins to verify it isn't an issue with the switch in the case before potentially causing additional fault points. Just a thought.

Hope this helps.

[SIGSEGV]

Get a POST card and tell us what number it gets stuck on

[Pommy192]

I think the CPU or MB is dead and the only way to check is to get the exact same ones, but as it's obsolete, it's hard to find.

 

I think in a couple of months I'm going to get a pentium k anniversary and £40 MB

 

 

 

Ouch, ouch, ouch.

 

Do you have any friends who will let you test your new power supply with their systems, or their known working psu with yours? If it was DOA and the old one died after sparking, that might be the only problem (and you'd have been very lucky).

The original PSU and the new EVGA PSU are fine. I think the motherboard or CPU has died from that molex connector surging.

 

 

 

So you have new case and new psu, did you use stand-offs while placing the motherboard?

Yep, stand-offs came with the case and I don't see why anyone would use them? It also came with a handy stand off screwer 

 

 

 

Get a POST card and tell us what number it gets stuck on

You say it like I am walking distance from a computer shop

[Sauron]

I think the CPU or MB is dead and the only way to check is to get the exact same ones, but as it's obsolete, it's hard to find.

 

I think in a couple of months I'm going to get a pentium k anniversary and £40 MB

 

 

 

The original PSU and the new EVGA PSU are fine. I think the motherboard or CPU has died from that molex connector surging.

 

Cpus are a lot more resilient than motherboards, fortunately.

[SIGSEGV]

You say it like I am walking distance from a computer shop

They're like £1-£3 on amazon...