Set your memory speeds to slowest possible, increase memory latencies.

Disable checking of parity errors if you have that option.

Try other memory sticks.

Unplug turbo cable, keylock cable, etc...

Check if jumper settings for the CPU are absolutely correct! Double check!

Unplug other ISA/PCI cards, try a different VGA card.

I'll try to think of more stuff. But seems to me memory related.

I experienced the same kind of hang on my Socket 5 motherboard. I just switched memory sticks and it worked.

Wow, this shit is driving me crazy hehe.
Ok tried different memory sticks, tried different video cards, unplugged turbo cable, keylock cable, etc... .

Al jumper settings checked and doubled checked.....

I didn't set my memory speeds to slowest possible because I didn't know how to. Inside the BIOS but what section is it on?

Any more ideas I could try? I really like this board and I don't think is broken, I'm missing something....what is it.....?

Check out the capacitors. I had the same situation with 5VP3 mobo, the capacitor near the CPU socket went loose and needed to be changed.

I'll try that right away RacoonRider, I noticed that one of the capacitors was a bit loose.
Thanx a lot!

AHHHH!!! What an entertainingweekend I'm having. I'm getting to the point of throwing all 486's motherboards out the windows and just pluggin in a Socket 7 MOBO.

Ok, so I bought several capacitors, changed the one I thought was faulty and....the Motherboard does not turn on. Fu*$!! Gone, finito, kaput, hasta luego lucas.

My precious board, I really liked that board with its "dirty bit" which I never got to know what it did... I'm going on Monday to buy several capacitors and try fix the MOBO. This is NOT OVER!!

Meanwhile I'm trying to put on a recently adquired MICRO-STAR MS-4144 PCI Motherboard
But, issues my friends, 486 's are troublemakers...they won't work out of the box...no sir...
they make you sweat and sweat which is ok in the Winter, but not right now, not in the Spanish Summer time....oh lord! How easily angry and frustrated I get with the heat..

Keep in mind I'm alone right now, my girlfriend is gone so I need to talk about my 486's frustrations with you lot, so please be patient!

Ok back to the matter. I'm having some IRQ related problems. This is what shows up when I boot the computer:

This shows up and it hangs.

IRQ in the BIOS is set to Automatic as you can see in the following picture:

I have an S3 Trio64V+ in PCI Slot 1, that's all.

Any ideas my friends?

I think it's normal, since there are no PCI cards that use IRQs the bios just reports "None"
What if you turn on the option "ASSIGN IRQ FOR VGA" ? will it use one?

keropi wrote:

I think it's normal, since there are no PCI cards that use IRQs the bios just reports "None"
What if you turn on the option "ASSIGN IRQ FOR VGA" ? will it use one?

I don't see that option in the BIOS keropi.
I tried setting up manually. It reports at start up, that Slot 3 is IRQ 10, the rest appear as NONE. Just like the picture above.
But still, that computer hangs.

ah, maybe this BIOS does not have the option being old and such, it just leaves it to the vga's jumper setting...
I think that this IRQ behaviour is normal, just try and stick some pci soundcard and see if it gets an IRQ... the hanging issue must be something else.

You were right Keropi. What happened is that the HDD I had was over 2 Gb and does not work with this MOBO. It work with the last one, but not with this one. What a pitty....oh well...
thanx a lot mate!

I don't wanna be a pain in the butt, but have you checked the capacitors ratings and bought suitable replacements?

Well I replaced the 10v capacitors with 16v ones which should also work of I'm not wrong.
I'm still going to keep trying when I buy new ones.
Also checked ratings and all of them suposedly worked....no clue....
I'l try to post more info on the matter. I'm actually quite clumsy when it comes to electronics, soldering, etc.

Obrigadao carlostex.

I'm clumsy to electronics true. But i've learned that it's of the utmost importance to replace capacitors with the same ratings. Not only voltage but also uF values. For instance when i had to replace caps on one of my motherboards, i got exactly equal rating caps, and then chose high quality ones. A bit more expensive but they are worth. That board is working better than before.

carlostex wrote:

I'm clumsy to electronics true. But i've learned that it's of the utmost importance to replace capacitors with the same ratings. Not only voltage but also uF values. For instance when i had to replace caps on one of my motherboards, i got exactly equal rating caps, and then chose high quality ones. A bit more expensive but they are worth. That board is working better than before.

Hope I can get this MOBO running again! I'm going tomorrow to look for the right capacitors. I'll post results later tomorrow.

when shopping for replacement capacitors you only need to watch for 2 things:
a. same capacitance
b. equal or more voltage tolerance

so a 16v capacitor is just fine in the place of a 10v one, provided both have the same capacitance... the voltage rating is not an absolute value , it's the upper limit that the capacitor is guaranteed to work.

Got it keropi! thanx mate

Ok...gone....kaput. I musted burned a circuit or something while soldering..arrrggh, shitty soldering iron....
Sniff, sniff...I loved that board.

^ any fotos of the damage you suspect happened?

Ok here's the damage. Please don't laugh. I know 🙁 I'm a beast!
This is how you shouldn't do it kids!

Changed de 10v and 1000F to 10V and 1500F
and the 50v 10F to 63v and 10F