NO POST

[Jsmith2211]

Ok, so i decided i would like to run some of my old dos games on my old windows 98 pc, so i dragged it out, dusted it off, and it worked! For a while... Next thing i knew, BOOM, VRM blue screen. Restart, and no post. No bios beep, no nothin'. I troubleshooted it down to the motherboard, so i got a replacemet, an MS 7061. The same problem! Starting to think CPU might be at fault, but wouldnt there be a speaker code? 

Specs as follows

 

socket 462 msi ms 7061 (new motherboard) The old one was an ECS K7s5a.

AGP fx 5200

80GB Maxtor Diamond Max 9 HDD

LiteOn Cd drive

Sony floppy

Some old PSU out of another system, and another one that was from the origional both dont work

1 x 512 mb ddr

1 x 256 mb ddr

Athlon 1100

 

Any help is appereciated

James

 

[The Oddball]

It could be the PSU blowing up the motherboards.

[Valkyrie Lenneth]

did u blow out the psu proper, dust becomes conductive if too much since that thing is ancient who knows lol, prolly the psu blowing up stuff tbh, or the ram kit/stick

[Jsmith2211]

So you think both motherboards are toast? Thats a pain. I can probably send it back seeing as it didnt even post... I tried it with a different PSU for the same results. Is therre anything i can try to get the system booting. There is no beep code if that helps

[asand1]

Check the caps on the mobo, GPU, and PSU. if any are bulging you will have too much AC ripple. I had to recap my Geforce 6600 after it blew caps and starting BSODing.

[Jsmith2211]

Just now, asand1 said:

Check the caps on the mobo, GPU, and PSU. if any are bulging you will have too much AC ripple. I had to recap my Geforce 6600 after it blew caps and starting BSODing.

how do i check them on the PSU? Already checked mobo and gpu. I have been told to never open a PSU

[anton_kr]

I think I had this problem a couple of years ago, I was young and didn't really know anything about computers but I could play with my dad's old pc. Basicly the PSU's back then had a switch on the back with 230v and 100v (I believe). I turned it over and tried to start the pc but the powersupply blew up in my face. No injuries tho but I think that it happend to you too

[asand1]

You remove the screws, break the seal and pull the top off. you don't have to remove the PCB from the bottom of the unit, just do a visual inspection. if the tops of any capacitor are bulging or leaking at all it is toast. 

[asand1]

Was there a literal boom? 

[Jsmith2211]

2 minutes ago, asand1 said:

You remove the screws, break the seal and pull the top off. you don't have to remove the PCB from the bottom of the unit, just do a visual inspection. if the tops of any capacitor are bulging or leaking at all it is toast. 

If the power supply is dead could it have killed the new mobo too? It powers all the fans

 

[Jsmith2211]

Here are some pics

[Jsmith2211]

Looks like there is some goo in there, is that normal?