My upgraded computer keeps shutting down - what should I do?

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Ok I have the same problem as " I recently upgrade my computer from an AMD Athlon 900 Mhz to AMD Athlon 64 2800+ including a new AMD motherboard. I also upgraded my graphics card from NVdia 8Mb Vanta to ATI Radeon 9600 256Mb, and my hard disk from 20Gb to 120 Gb, as well as the memory from 64Mb to 512Mb. However, I still use the same old casing, with one fan. It keeps shutting down after quite sometime and reboots. What could be the problem?"
However, mine is a socket 478 intel product with 400 watt power supply with cpu fan and system fan both running full on. I recently ran them memcheck86 on it which ran all day long without stopping. But, when I boot windows XP home edition I have the problem. As long as I am sitting there using it it works fine. But if I get up and leave it alone it freezes, The hd light stays on and mouse freezes. Help?

I had a similar problem that started yesterday. My computer seems to work fine when im at it, but if i leave it for a few hours it shuts down and reboots, except when it reboots my HDD is not recognized. Ive elimanted cooling from the equation, i have a large fan taking air through the frontm and 2 small fans extracting air from the back, as well as water cooling for my CPU. Power supply may well be a problem, and am deciding on weather my HDD is not getting the supply of power it needs, or my HDD is shagged. Last thing that crossed my mind is that the fluid for my cooler is getting low, even tho my intel active monitor shows no problems, could heat still be an issue? Any replys or help would be great.
Thanks

My computor recently had spy ware on it ,so I purchased a soft ware to eliminate it. Now my monitor keeps shutting off and the green light blinks and then it turns back on. Any idea what is doing this?
My monitor is 7 years old.

Thanks

I have the same problem, i built my computer from scratch..bought everything including the power supply, its an Ultra / X2 Connect / 550-Watt / ATX / 120mm Fan / SLI Ready / SATA-Ready / 20/24-Pin / Modular Power Supply at first i though that i would be due to heat inside the computer, so i upgraded the cpu fan that came with the cpu to one with a bigger heatsink and it has 2 80mms fans. I also bought a faster fan than the one that came with the case..the case has one fan sucking in air and another one on the back sucking hot air out.. plus 2 fans on the pci slots blowing air to the video card nvidia geforce 7800 gtx, i notice that the computer shuts down when its peformance hits 100% or close for more than one hour.. and the temperature for is at 45 celsius or so, it usually stays at around 37-38.. i honestly dont know what else i can try.. i was even thinking of switching to that watercooling stuff, but i'm kind of scare of just messing it all up..

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Dear Leo,

Whenever i am starting my PC it shut down automatically. when i am restarting my pc again it gives me the message that "my PC had overheated and needs to closed". Afterwards it gives me the message press F4 to resume. when i am pressing F4 it runs normally.

please suggest.

Imran

Yup, I had the same problem!! I do PC builds for a hobby and I have never had so many problems then with the Ultra X2 PSU. Except I blame the poor quality of the Ultra X2 PSU. I just boxed up my second one to send back. The first PSU would simply reboot at random (whether it was prior to the BIOS posting or after Windows XP x64 loaded). So I sent it back and picked up another. This one ran fine for about 2 weeks, then last night the cool blue UV light went out, the PSU started to make a hissing noise and I could smell burnt electronics.

I am running a 900w UPS so I don't think clean power is the problem. My 500w Antec runs just fine, I just wanted something pimpier. My mobo is a P5WD2 Premium and is only a year old or so.

There can be many problems that can trigger the PC to shut down or restart. If you're lucky, all you need to do is get a new power supply. If you have upgraded your PC with new cpu and new video card etc, you need to upgrade the power supply as well to adjust to the new voltage requirements that you PC will need to run. If you DID get a new power supply (ie: the Ultra X2), and your mobo uses a battery to operate CMOS, then it can be that the Powersupply is sending an overwhelming amount of current to your mobo battery, draining the life of it quickly, so it won't last for over a few weeks, if even that long.

Another problem could be that your memory sticks could have gotten burnt out, or is overheating. You can buy heatsink covers for your ram, which CAN help with the ram from overheating for fairly cheap, but if it still doesn't fix the problem, then you may need to replace the bad memory entirely. (this is the bad thing about overclocking, I have experienced all these problems)

As for the overheating and resetting and not being able to log on again due to the heat, I would suggest buying a bigger case and adding more ventilation, there are many good cases out there that are fairly cheap (ie: http://www.newegg.com/Product/Product.asp?Item=N82E16811156175) Add all your fans and get a GOOD heatsink+fan for your CPU, cuz you don't want it to overheat. ALSO, get a cood thermal paste conductor for it as well (ie: Artic Silver III).

A much more serious case may be that you may have a virus in your BIOS (VERY VERY rare) but there are some out there. In which case you would have to flash your PC to reset everything, and sometimes, that does not help, which means, you need a new cpu.

Hope these were helpful

My Computer keeps closing down when i went download any program or file, the computer will run fine and i can also browse the internet fine, but when i went to download a file or program it keeps shutting down, i have open and cleared out my computer from any dust,

Can you please help, or advise me

Majid Khan
Majidk87@hotmail.com
07841716844
UK

My Computer keeps closing down when i went download any program or file, the computer will run fine and i can also browse the internet fine, but when i went to download a file or program it keeps shutting down, i have open and cleared out my computer from any dust,

Can you please help, or advise me

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