PC crashed: what could be the cause?
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PC crashed: what could be the cause?
It had to happen sooner or later, my first hardware crash. When I tried to turn on my PC two days ago, fans started to spin, lights turned on, but no booting, no BIOS even.
System:
Asus A8N-VM CSM
AMD Athlon 64 3200+ Venice 2.0 GHz, S939
2 x 512 MB Kingston ValueRAM
Samsung HDD Spinpoint PS80SD, 80 GB
Seasonic 350W PSU in Arctic Silentium T4
I checked the HD: it functioned.
I swapped the 2 sticks of RAM around, tried them in different sockets: nothing happened.
The PSU seems to be working fine too.
I don't think it's the IGP because the CPU fan spins at full speed and doesn't slow down (normally it slows down as soon as Q-fan takes over) and the lights on my keyboard don't light up either.
My guess it's either the mobo or the CPU. Now because all the lights turn on on the mobo (LAN port for instance) I have a hunch it could be the CPU. I'm planning on ordering a new S939 CPU on ebay today to find out.
My question is: Am I going about it the right way or am I overlooking something? Some input would greatly be appreciated.
System:
Asus A8N-VM CSM
AMD Athlon 64 3200+ Venice 2.0 GHz, S939
2 x 512 MB Kingston ValueRAM
Samsung HDD Spinpoint PS80SD, 80 GB
Seasonic 350W PSU in Arctic Silentium T4
I checked the HD: it functioned.
I swapped the 2 sticks of RAM around, tried them in different sockets: nothing happened.
The PSU seems to be working fine too.
I don't think it's the IGP because the CPU fan spins at full speed and doesn't slow down (normally it slows down as soon as Q-fan takes over) and the lights on my keyboard don't light up either.
My guess it's either the mobo or the CPU. Now because all the lights turn on on the mobo (LAN port for instance) I have a hunch it could be the CPU. I'm planning on ordering a new S939 CPU on ebay today to find out.
My question is: Am I going about it the right way or am I overlooking something? Some input would greatly be appreciated.
Well, the only way to tell what part exactly is bugged, you have to replace/test each part individually. Sounds like motherboard to me, although it's not more than just a hunch. Instead of buying a "new" 939 processor, why don't just take it as an "it's-time-to-upgrade-a-little"??
A basic motherboard+CPU+RAM upgrade isn't very expensive and you won't ahve to waste money on buying a very outdated CPU.
A basic motherboard+CPU+RAM upgrade isn't very expensive and you won't ahve to waste money on buying a very outdated CPU.
Hi Palindroman,
My main knowledge of computers comes from troubleshooting problems, so I figured I should add my own bit to this thread.
I realise you've likely already done some of the following testing, but usually when I'm presented with this kind of problem my order of troubleshooting goes like this:
Unplug *everything* from the motherboard except: CPU/heatsink/fan, case power switch, ATX 20/24pin power, P4 4pin power. This is mostly to keep things basic, but sometimes weird shorting issues with cables can cause the same problem you've stated.
Next, look at the onboard USB ports at the back and check if any of them look especially different to the others. Make sure the inner connectors aren't touching any metal they shouldn't be, as this can cause a short.
Then it's time to check the other main parts:
PSU - Test with a known working PC.
RAM - Both sticks CAN die at the same time. Again, test in a working PC.
M/B - It may look like it's working, but it's probably got a problem.
CPU - You would have to be extremely unlucky for this to die under normal conditions.
If you've got up to the stage of checking the motherboard, then I agree with what everyone has said as far as the motherboard goes.
It could just be a tiny bit of scrap metal or something shorting, or the bios settings may have to be reset. Once you've checked everything except the CPU, remove the battery for a few mins then reconnect, if the same problem is happening, then it's worth getting everything out of the case and giving it a good cleaning with a can of compressed air, then plugging in the basic cables again and see what happens.
Hopefully you'll have found a solution soon.
My main knowledge of computers comes from troubleshooting problems, so I figured I should add my own bit to this thread.
I realise you've likely already done some of the following testing, but usually when I'm presented with this kind of problem my order of troubleshooting goes like this:
Unplug *everything* from the motherboard except: CPU/heatsink/fan, case power switch, ATX 20/24pin power, P4 4pin power. This is mostly to keep things basic, but sometimes weird shorting issues with cables can cause the same problem you've stated.
Next, look at the onboard USB ports at the back and check if any of them look especially different to the others. Make sure the inner connectors aren't touching any metal they shouldn't be, as this can cause a short.
Then it's time to check the other main parts:
PSU - Test with a known working PC.
RAM - Both sticks CAN die at the same time. Again, test in a working PC.
M/B - It may look like it's working, but it's probably got a problem.
CPU - You would have to be extremely unlucky for this to die under normal conditions.
If you've got up to the stage of checking the motherboard, then I agree with what everyone has said as far as the motherboard goes.
It could just be a tiny bit of scrap metal or something shorting, or the bios settings may have to be reset. Once you've checked everything except the CPU, remove the battery for a few mins then reconnect, if the same problem is happening, then it's worth getting everything out of the case and giving it a good cleaning with a can of compressed air, then plugging in the basic cables again and see what happens.
Hopefully you'll have found a solution soon.
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- Joined: Fri Oct 20, 2006 1:00 am
Thanks for all the answers!
But you know, I run a website promoting sustainable computing which is all about reduce, reuse and recycle. So I have to go for an upgrade or else lose my credibility!
I'm kind of hoping it's due to the CPU because I have my eye on a good-looking Athlon 3500+ Winchester-core on ebay which will probably undervolt way further than the V-locked Venice that's in my system now. It'll cost me about € 30 which is also less than the € 200 for that 4450e system.
But what if it isn't the CPU?!
I've just blown all the dust out of the PC and removed the CMOS battery, all to no avail. I can feel the CPU and chipset slowly warm up but I'm not sure if that's a clue or not. The HD spins up for 1 second or so and then goes completely silent. I might replace the PSU later on with a picoPSU I have lying around but I have a feeling it won't change much.
I guess I'll swap the CPU for the Winchester from ebay. If that doesn't help, I'll order a S939 mobo as well and then sell whatever remains again.
I'll leave a message if and when I find out what the problem is. Thanks again for the feedback.
To tell the truth it was the first thing that ran through my mind. 'Great, now I can build that 4450e/picoPSU/nVidia 8200 setup that consumes only 25 watts at idle!'Strid wrote:Well, the only way to tell what part exactly is bugged, you have to replace/test each part individually. Sounds like motherboard to me, although it's not more than just a hunch. Instead of buying a "new" 939 processor, why don't just take it as an "it's-time-to-upgrade-a-little"??
But you know, I run a website promoting sustainable computing which is all about reduce, reuse and recycle. So I have to go for an upgrade or else lose my credibility!
I'm kind of hoping it's due to the CPU because I have my eye on a good-looking Athlon 3500+ Winchester-core on ebay which will probably undervolt way further than the V-locked Venice that's in my system now. It'll cost me about € 30 which is also less than the € 200 for that 4450e system.
But what if it isn't the CPU?!
I've just blown all the dust out of the PC and removed the CMOS battery, all to no avail. I can feel the CPU and chipset slowly warm up but I'm not sure if that's a clue or not. The HD spins up for 1 second or so and then goes completely silent. I might replace the PSU later on with a picoPSU I have lying around but I have a feeling it won't change much.
I guess I'll swap the CPU for the Winchester from ebay. If that doesn't help, I'll order a S939 mobo as well and then sell whatever remains again.
I'll leave a message if and when I find out what the problem is. Thanks again for the feedback.
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- Posts: 247
- Joined: Fri Oct 20, 2006 1:00 am
Thanks, Kriz. I haven't been doing any power consumption tests lately, but I can't say things are improving as radically as they did two-three years ago. Then again, I'm not reading as much about it as I did the last two years.Kriz wrote: No worries. I've always found your posts to be very useful and informative. I do hope you're still doing the occasional power consumption test.
This was the last system I built and would build for myself if it weren't better to just replace the faulty component:
Numbers are:
RMClock idle
Cool 'n Quiet
Idle
RMClock load
load
Unfortunately I've never managed to undervolt those new Brisbanes (from BE-xxx upwards) at the limit because they would crash incessantly. If I would build a new system for myself I'd probably take an older Brisbane, like the X2 4000+ or something.
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What bad luck! I just bought one off ebay tonight (for € 25)!ACook wrote:whereabouts are you, I got a s939 3000+ winchester lying idle here, in .nl - postage for such a small thing is the same throughout europe using a bubble-envelope.
it's yours for 5e inc shipping
not as if I'm going to reuse it here anymore. my mom has the machine now with a X2 4200.
But thanks for the great offer! That's really kind of you.
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- Posts: 247
- Joined: Fri Oct 20, 2006 1:00 am
I swapped the CPUs but nothing happened (as expected, more or less). It was wishful thinking on my part as I wanted to replace my V-locked Venice with that undervoltable Winchester.
I swapped the PSU too but no changes.
A weird thing happened though. One time the pc turned on and I got to see the first screen you see where you can press DEL to enter BIOS. The screen was frozen so of course I couldn't enter BIOS, but still I was surprised the pc showed a minimal sign of life after all those times I turned it on and nothing happened.
So I guess it has to be the mainboard (if you think it might be something else please let me know). I'll see if I can a S939 board on ebay, otherwise sell everything, buy new stuff and build that low power system!
I swapped the PSU too but no changes.
A weird thing happened though. One time the pc turned on and I got to see the first screen you see where you can press DEL to enter BIOS. The screen was frozen so of course I couldn't enter BIOS, but still I was surprised the pc showed a minimal sign of life after all those times I turned it on and nothing happened.
So I guess it has to be the mainboard (if you think it might be something else please let me know). I'll see if I can a S939 board on ebay, otherwise sell everything, buy new stuff and build that low power system!
Re: PC crashed: what could be the cause?
I have had a lot of issues with Kingston memory in ASUS hardware. I also had a lot of issues with that particular motherboard. If you don't have other memory to try, I would find another motherboard.Palindroman wrote:Asus A8N-VM CSM
2 x 512 MB Kingston ValueRAM
My question is: Am I going about it the right way or am I overlooking something? Some input would greatly be appreciated.