Help! My PC died! (Edit: Now my modem!!)

[Hayashi]

I fired up my home PC last night, after dinner, and continued playing BG, exploring the Hall of Wonders & looking for a particular telescope .
Shortly into playing (not more than 5 minutes, I guess), I smelt a strange acrid odour. I thought it was coming in from outside (a container port is just across the road from where I live), and continued playing.
Not long after, the PC just switched itself off. At first I thought it crashed, but my worst fears were confirmed when all the blinky little lights were off. I couldn't switch it on again.
It's not a blackout (as the room lights, etc were still on), neither was it the fuse (the monitor & speakers still had power). I suspect it must be the internal power supply, which I just changed a few months ago.
Can anyone confirm my diagnosis? Or if it's wrong, suggest other possible causes?
Say!! Maybe thi'd be the perfect excuse to get a new computer...
Seriously, I need some information so that I can decide whether to shoot the poor thing or get it repaired.

[ 07-15-2002, 09:18 PM: Message edited by: Hayashi ]

[Sir Goulum]

I'd get it diagnosed first before you get it repaired...and see how much it costs! I think that smell had something to do with it......maybe it melted some wires

[dizzy]

sounds like it

[Animal]

Originally posted by Hayashi: Shortly into playing (not more than 5 minutes, I guess), I smelt a strange acrid odour. I suspect it must be the internal power supply, which I just changed a few months ago. Can anyone confirm my diagnosis? Or if it's wrong, suggest other possible causes? Say!! Maybe thi'd be the perfect excuse to get a new computer... Seriously, I need some information so that I can decide whether to shoot the poor thing or get it repaired.

A strange smell? Perhaps you didn't add the right spices and herbs! No seriously, you're on the right track with your power supply, especially if it was underpowered. Pull it out and take it down to your local computer shop and get them to test it.
Grab a small maglite and nose around inside the case looking for signs of burnt wires, chips, ports etc..
If your power supply tests okay, then you're probably pretty much screwed. Just out of curiousity what power rating was it and what kind of hardware are you running?

[Hayashi]

Power supply - 300W (I think)
Hardware - nothing beyond the standrad stuff - video card, sound card, 3.5" floppy drive, CD-ROM drive, 12 GB HDD.
Hate to poke around the casing but it looks like I'll have to. How do I tell if a chip is burnt? Would the signs be obvious?
I really, really hope the HDD is alright... [img]graemlins/uhoh1.gif[/img]

[Animal]

A burning smell indicates burning of some kind, so you might see some scorching although I doubt it, but it's worth a shot. If it's 300W then you should be okay. I seriously doubt that it's your hard drive, as it would still show some activity, ie: you see your BIOS POST at the very least.
Don't worry too much about poking around in the case, just don't have any kind of food or liquid around while your doing and make sure you aren't standing on carpet and touch a metal part of the case BEFORE touching anything else to relieve any static electricty you may have built up.
I'm assuming you have a running PC. You could always try swapping the power supplies to see if that is in fact the problem, but by the sounds of it your PC knowledge is somewhat limited.
A lot of newer ATX motherboards have an led built right onto the board to indicate whether it's getting power or not. If it's lit you've got power, if not....
I had a similiar experience a while back, but with no burning smell. Playing some NHL 2002, and computer just shut down, no warning no nothing. Couldn't even get it it to POST after that. Swapped the power supply for a 450 and bingo, no probs.

[Animal]

Incidently if it is the power supply, don't be cheap when buying a new one. Spend some $$$ for a decent one. You'll be much happier in the long run. Check out PC Power and Cooling. They've got some quality stuff.

[Hayashi]

Originally posted by Animal: Incidently if it is the power supply, don't be cheap when buying a new one. Spend some $$$ for a decent one. You'll be much happier in the long run. Check out PC Power and Cooling. They've got some quality stuff.

Sadly, I'm not in that part of the world. Where I live (Singapore) there is a shopping centre that has a lot of the small businesses that sell PCs (non-branded), repairs, upgrade etc. But the QA is just not there...
Is there any particular reliable brand of power supply that I should ask for? What about wattage -- I guess there's no harm in having excess capacity, right (eg having 450W when 300W would do)?

[ 07-09-2002, 11:21 PM: Message edited by: Hayashi ]

[Earthdog]

No there is no danger of having too much in the way of power. Its when you have too little that the problems seem to arise.

I remember a while back you were wanting to build a new PC Hayashi. Now might be the time to learn the bit about how to do it. IF its your power supply you might just want to get a whole new case. IF you go to a market or swap meet of some kind many of the power supplies will be used anyway. You might be able to find one new and without a case but chances are youll have to buy a case as well if you want a NEW power supply.

All you have to do if you get a new case is take the old stuff out and remember how you did it. Back engineer it. Then just put it all together in reverse order. Its not hard at all. Once you do it youll have the confidence to do it again. Experience is the best teacher

It also could have been the CPU but yes it does sound more like a power supply.

Onething to keep in mind is that if it was the motherboard that went bad it could have fried the power supply when it went out of commision. Take it to a local tech and see what he says. And find out how much to replace any bad parts.

[Hayashi]

Ok, here's an update. Apparently my motherboard has a short-circuit. The repair guy says that compatible m/b's for the existing processor (Pentium 3 500 MHz) are hard to find; most m/b's for P3s nowadays are for speeds above 1GHz.
He recommends I might as well upgrade to a P4. He also says I would need to change the power supply & RAM (I am using PC100 RAM now -256MB) as the existing components would be inadequate to support the new stuff but I should be able to retain the existing peripherals (floppy drive, CD-ROM, HDD, etc).
Any advice?