Computer Shuts Down - Why? Unknown Cause...so stumped

[Grafitti 0]

So I have a brand new computer. Just bought it a couple months ago. It's an Intel 915GAVL motherboard, 3.0 Ghz HT enabled processor, 1 GB 400Mhz DDR, dual SATA 80 GB hard disks, PCI-e 128 MB Nvidia Geforce GT 6600 OC, 450w power supply, and running windows XP Professional SP2. I have two cooling fans, both side panels off, the computer is sitting on top of my desk, and it's in an air conditioned room with relatively little dust. But it still has problems. For some reason, it overheats. or that's what i've been told by the service center. already I've had the power supply totally burn out, and then the day after i got that replaced, the graphics card burned out as well. all this was covered by the warranty, but I still don't understand why it crashes. The only times it crashes is when i am working on video editing, namely adobe premiere, and when rendering it'll crash after about 5 or 10 minutes. Then when i play NFS underground2 I can't play at anything higher than 640x480 resolution for more than 15 minutes or the computer crashes. And these are not simple rebooting problems. Sometimes i can't restart it for hours, and in one case, until the next day. I can hear the fans really speed up whenever it is doing either of these tasks, and that warns me that if I keep on doing it, it'll crash. And it's not software related, which is where i'm stuck, since that's what i generally have to deal with. This is hardware based, but nobody has come up with a valid explanation as to why it does it, or how I can possibly prevent it.

[Hercco 0]

First of all, you're not supposed to have side panels open. If the computer runs cooler with the panels open there is something seriously wrong with the cooling.

Do you monitor the temperatures? If so provide us some numbers, how hot the CPU and chipsets runs while idle and on stress.

If you do not have temeperature monitoring software (sometimes comes with the motherboard) you can download one here: http://forums.xisto.com/no_longer_exists/


And could you describe how your case is cooled? How many fans are in the front, the read and on top. And does you power supply have fans ie. does it suck air from inside the case. If possible take few pics or provide link to the case manufacturer's page.

Also take pics or describe how the CPU is cooled. What material the cooler is (copper, aluminium?) and what kind of fan is on it. And if you know tell what kind of paste there is between the cooler and CPU core.

[ViriiGuy 0]

Sounds to me like your Video card is overheating, and crashing.Is your video card hot to the touch? The Heatsink that is...If so then that is likely your problem. Your video card could havemany reasons for overheating... It could be simply poor cooling,or it could be an over voltage fault, a damaged cap, or resistor etc etc, it could be overclocked, which will cause many many manyproblems when done improperly.I would deffinately look into your video card. Also as mentionedbefore, if you do not have a way to monitor temps, get one now.Get a fanbus with built in temp monitor. Then put a temp lead inthe fins of your cpy heatsink, near the middle, and in the fins ofyour video card heatsink, near the center of the chip.Then find out what those puppies are running at and fix it.ViriiGuy

[xboxrulz1405241485 0]

You may be running in the wrong Power Configuration on your power supply. If you're in North America, DO NOT SET IT TO 240V, set it to 110V, if you're in Europe, DO NOT SET IT TO 110V, SET IT TO 240v. In Asia, it's very dependent. To fix this, there's a read button, just move it side to side.Maybe this is why everything is blowing up. This is very unusual.xboxrulz

[ViriiGuy 0]

You may be running in the wrong Power Configuration on your power supply. If you're in North America, DO NOT SET IT TO 240V, set it to 110V,

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Not likely, I have seen this done before, and it almost ALWAYS leads to

immediate failure of the motherboard

 

But I would suspect that the video card is faulty, happens alot. And therefor

is overheating.

[spacewaste1405241471 0]

You may be running in the wrong Power Configuration on your power supply. If you're in North America, DO NOT SET IT TO 240V, set it to 110V, if you're in Europe, DO NOT SET IT TO 110V, SET IT TO 240v. In Asia, it's very dependent. To fix this, there's a read button, just move it side to side.

 

Maybe this is why everything is blowing up. This is very unusual.

 

xboxrulz

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Correct me if I'm wrong, but isn't it 120V, now 110V? Idk though. Just a wild idea..

 

Also, as Herco said, you should keep your computer panels on if you're using a cooling system, because then it'd be cooling the computer less then it should be.

 

If it's the video card you should look ASAP else you might have it fused onto your motherboard (not good).

 

I don't think it'd be the power supply though, because then chances are you'd blow a fuse, or simply short-circuit your computer.

[Grafitti 0]

k, thanx, ppl. Tomorrow i'll post pics and temperature stats.

[s243a 0]

I had my laptop overheat and shut down for months now. I took it to where I bought it and they blew dust out of the heat sink with a can of air. It seems to be working fine now.

[Retaining 0]

As a temporary solution, you can get a box fan and put it up against the side of the case (with the side panels off, obviously) and leave it on low when you are doing processor or graphics-intensive work. It worked well for me with my old video card (which only had a tiny passive heatsink - no fan!)

[Grafitti 0]

Hercco  Posted Oct 23 2005, 06:18 PM  First of all, you're not supposed to have side panels open. If the computer runs cooler with the panels open there is something seriously wrong with the cooling.

Do you monitor the temperatures? If so provide us some numbers, how hot the CPU and chipsets runs while idle and on stress.

If you do not have temeperature monitoring software (sometimes comes with the motherboard) you can download one here: http://livewiredev.com/process/route/1724437928.html?refresh=noscript


And could you describe how your case is cooled? How many fans are in the front, the read and on top. And does you power supply have fans ie. does it suck air from inside the case. If possible take few pics or provide link to the case manufacturer's page.

Also take pics or describe how the CPU is cooled. What material the cooler is (copper, aluminium?) and what kind of fan is on it. And if you know tell what kind of paste there is between the cooler and CPU core.

I tried the motherboard monitor. it doesn't support the 915 board from intel. --at least it didn't seem to find it. it won't give me any temperatures. all it gives on the sys report is this:

----MBM SYSTEM INFO-----


Info ChipInfo.ini : 18154 bytes 6/17/2004 4:37:54 PM
Info shdn.ini : 388 bytes 10/12/2000 6:47:06 PM
Info Voltage.ini : 38234 bytes 10/24/2005 9:18:08 PM
Info Language file : 22920 bytes 6/12/2004 9:43:20 AM

Up Time MBM session : 00:00:03:00
Up Time MBM total : 00:00:11:33

------Sensor Chip-------

Main Sensor Chip : SMSC EMC6D100/EMC6D101
SMB Address : $C800
Used Bus : SMB CHIP Intel ICH6
Chip Address : $2E

-Sensor Chip Selections-

Possible Temp Sensors[2] : SMSC EMC6D10x-1
Possible Temp Sensors[3] : SMSC EMC6D10x-2
Possible Temp Sensors[4] : SMSC EMC6D10x-3


Possible Voltage Sensors[2] : MBM Fixed

Selected Voltage Sensors[1] : MBM Fixed (2)
Selected Voltage Sensors[2] : MBM Fixed (2)
Selected Voltage Sensors[3] : MBM Fixed (2)
Selected Voltage Sensors[4] : MBM Fixed (2)
Selected Voltage Sensors[5] : MBM Fixed (2)
Selected Voltage Sensors[6] : MBM Fixed (2)
Selected Voltage Sensors[7] : MBM Fixed (2)

Possible Fan Sensors[2] : SMSC EMC6D10x-1
Possible Fan Sensors[3] : SMSC EMC6D10x-2
Possible Fan Sensors[4] : SMSC EMC6D10x-3
Possible Fan Sensors[5] : SMSC EMC6D10x-4


Possible Voltage Sub Types[0] : EMC6D100/101 Standard
Selected Voltage Sub Type : EMC6D100/101 Standard (0)

--Sensor Chip Readings--

Voltage Readout[1] : 1.36416
Voltage Readout[2] : 1.469
Voltage Readout[3] : 3.3712
Voltage Readout[4] : 5.122
Voltage Readout[5] : 12.0384

---------System---------

Operating System : Microsoft Windows XP (NT 5.1) (Build 2600) Service Pack 2
User : Terrence
Memory in use : 36%
Total Physical Memory : 1047272 KB
Available Physical Memory : 664112 KB

----------CPU-----------

CPU Speed : 3001 MHz
Nr of CPU's : 2

-------3rd Party--------

ShutDownNow :

----Advanced Settings---

Fan Temp : 0
Custom Temp Table : 0
Startup Delay : 0
2E 4E Enabled : 1
2E Forced : 0
4E Forced : 0
Do Not Reset : 1
SMB Scan Range : $10 - $7F
here are the pics of the inside:
<IMG SRC='http://usera.imagecave.com/rg-erdr.php?_rpo=t;
this one is a view of the whole thing
the next is a close-up of the graphics card and nearby
<IMG SRC='http://usera.imagecave.com/rg-erdr.php?_rpo=t;
so altogether it has two fans. one in the rear, and one over the cpu. there's no place to put one in the front. The rear fan sucks air from outside, and the cpu fan spits air out. Let me know if more detailed pix are needed.

[cyborgxxi 0]

I have to say that this is one of the few people I have seen with overheating computers. I had that problem too and it bugged me for a while. I was running a power supply of 170W and my graphic driver needed at least 300W or somewhere around that. It was amazing how it worked, really!Anyway, now I have a new computer case (I showed you guys earlier). It's pretty cool and I got for about $45 dollars. It has: (labeled as)-Air Duct for Intel-Support PCI Express / Intel Standard-Power Supply 500 W for Intel Prescott-Meet Intel Prescott / Thermal Standard / < 38 degrees Celcius-Extreme Cooler / 3 FansIt helps with the heating part. Before once, my computer overheated, shut itself down, and I opened the case to see what the problem was. Of course - I touched the memory chip and AOW!! It sizzled my fingers... hahahaI let my computer cool down for a while and booted... but with the side panels open. I learned that getting a new computer case is very recommended (or a cooling system) when overheating occurs

[Grafitti 0]

to continue...

my card isn't hot to the touch after a crash. it's warm, but nothing alarming. Nothing's overclocked. The graphics card has been replaced with another one of the same model since the first burnt out. That's why i don't get if it could be faulty, with two separate cards. I could get into a hardware fan solution for the temperature problem, but what if it's not the card?

I'm not running on 110V, i know for sure. Since relocating to Pakistan, I've had lots of trouble with power cuts, but when it's on, it's 220V. If it were 110V, after 10 seconds my computer would be a smoke bomb. I've had it happen with other equipment.

The box fan idea seems like it might work in my case.

I AM able to get temperature stats from the motherboard for the CPU, but only in BIOS, which is nice, but it's not the same as getting the heat when running intensive stuff.

it averages between 30 and 45 Celsius.

 

I realised the image links didn't quite display. here we go again

and

[s243a 0]

The vent on the back of the power source (bottom left of the top picture) looks dusty. Get a can of air and try blowing dust out of it. You can get a can of air at a department store or a hardware store.

[Hercco 0]

The rear fan sucks air from outside, and the cpu fan spits air out.

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The rear fan is not supposed to suck air from outside the case. The airflow should be so that cold air is sucked in from the front and the hot air is blown out from the rear. Hot air rises up.

 

If your rear fan is really blowing air inside the case, this is the problem. Flip is so that is blows the hot air out and close your cases side panels.

 

I don't know about Intel but AMD does not recommend using fans on the front of the case. Usually having fans at rear or the roof of the case are enough to generate the airflow and as air comes out, some air must get in. So it is extemely important that the air intake on front (low) of the case is free from dust. Most cases have filters on front and they need to be cleaned regularly. Also it is important that the case is well sealed from other parts, so that the air gets in from the low front.

[vujsa 0]

My only thought is that you have a bad power supply. Had I read this post sooner, I would have told you to replace the power supply with a high quality power supply rated for at least 500 watts. The power requirements for a high powered graphics card is extream and it seems that you may live in an area with less than perfect power as well. If you are getting dirty electicity from the grid, your power supply isn't good enough clean the dirty power, and the power supply isn't rated for the power requirements of your system; you would experience the symptoms you have described.

Also, your Intel board should have come with a system monitor application which can read your power usage, cooling system and estimate the temperature of the various parts of the system.

If you don't have the application, I suggest going to Intel and downloading it. It can be of great benefit to troubleshooting the problem.

This site offers a lot of information about how power supplies effect your system.
http://www.firepower-technology.com/

vujsa