PSU or motherboard problem?

G

gill501

New Member
Recently my PC stopped working, it would not boot up. When I opened up the case I saw that some of the wires from the PSU had fried and were stuck to the motherboard circuit a little. See pic

CIMG0765.jpg


I bought a Jeantec 300W PSU and have fitted it to the PC. But this does not seem to work, the PC will not power up at all, I get no led light at the power switch or any beeps, .. nothing.

Would the motherboard have been damaged as much that it would make the pc not power up, should I need to buy a new motherboard? Or should I try a better more powerful PSU in the machine?

Any help appreciated, thanks.
 
Do you have a picture of the motherboard where the wires soldered to it?

So far, I think it may of damaged the motherboard.
 
Try disconnecting everything except for mother board and GPU with the 300W... depending upon your machine, it could just be the the 300W can't handle it.
 
No I don't have a pic of that Kornowski as I can't see any physical damage to the motherboard, there is no evidence that anything happened! But it was stuck to the circuit board as I had to pull the wire off from it when removing the old PSU.
I have tried another power cable and also replacing the small lithium battery, but to no avail. I am pretty sure I have connected all the cables up correctly, I have checked and double checked this! Not sure what else to try other than shelling out 100 quid or so on a new motherboard and better psu.
 
I would try what PohTayToez suggested, becasue 300Watt is pretty small...

I know, It would cost a bit... But you never know, You may be able to get a better motherboard, for a fairly decent price.
 
One further question to check something if you guys don't mind... there is a small 3 pin connection just below the 4 pin connector on the motherboard, see pic just left of the heatsink

CIMG0844.jpg


I couldn't find any reference to this in the articles I looked at when replacing the PSU so initially I never put any cables into this connection. I have since found a connector with 3 pins, black and yellow cables that fits perfectly into this connection. Should this be connected? And what is it?

CIMG0858.jpg
 
I don't know, I would think that is a connector for a 3pin fan (on your motherboard)... I could be wrong though...
 
Yes, now that I look at it you could be right, the fan on the motherboard is connected to a 3 pin connection next to the fan on the motherboard marked CFAN1
The empty 3 pin slot is marked SFAN1, this could be for a secondary fan I guess?
Anyway, I'm all out of ideas to try so I guess i'm going to look into a new PSU firstly then maybe a new motherboard. Thanks for the help.
 
Kornowski is correct, that is a 3 pin fan connector. Unless you have a fan to plug in there, don't put anything there. Your motherboard might have been damaged from the electrical current through the PSU wires (considering even static electricity can fry computer components).
 
What are your current computer specs? We might be able to help you get a better computer if you decide to do that, or maybe just an upgrade, depending what you want to do what what state you are in regarding finances.
 
To be honest this was more of a project, i've been off work for 3 weeks and I was getting bored! The PC had been sitting in the spare room for months, so I thought I'd have a go at fixing it, I don't want or need to splash out money for a whole new pc but i dont mind spending a couple of hundred £'s on some new bits.
We currently have a laptop in the spare room with 2 printers and a router connected. We mostly use a laptop wirelessly in the lounge.
I've felt though that the laptop upstairs was running slow (it's 4 years old, basic spec)and maybe can't handle all that we're asking it to do so I thought if i fixed up the pc, put in more memory etc and use that instead.
I wouldn't mind advice on a new motherboard and psu then as it's seems that probably the next step, thanks guys.

The pc is an emachines 610
2600+ AMD Athlon xp processor
Nvidia nforce 2 graphics
 
If you get a new motherboard, you might as well get a newer socket (and a new processor).
 
You most likely have a Socket A motherboard and processor. Since then, there has been Socket 754, 939, and AM2 for AMD, and Socket LGA775 for Intel. Both 754 and 939 are not being produced much anymore (if at all). Your best bet would be to go with either AM2 or LGA775.
 
Yeah, It'll be a socket A, as my Athlon XP is a socket A (462)...

Like Jet said, you'd be better going for an LGA775 if you wanted Intel or an AM2 if you wanted AMD.
 
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