custom built PC crashing, then complete dead... help!

quanttrade99z

Member
May 22, 2005
123
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Dear All,

Looking for some advice on how to deal with a serious problem with my custom built PC. <all computer specs below>

With help from many of you, a newbie like me was able to build a pretty cool PC which I use for my home business. I leave this PC running all the time. Starting about a month ago, I noticed that the PC would occasionally crash over night. This was something new, which had never happened before.

On one occasion, the computer would not start up at all? when I pressed the on/off button absolutely nothing would happen. I was pretty freaked out? opened the case? jiggled things around? and then it started fine. About a week ago, when I was using it, it suddenly froze up and I had to restart it with the power switch. Anyway, I was worried about this, but it wasn?t causing me any serious problems. Last week, I tried to install a new hard drive (a 2nd drive). After I did this, I turned on the computer and nothing happened.

I removed the new drive, turned on the computer and nothing happened.

I checked all of the connections, turned on the computer and nothing happened.

I completely removed everything, started the computer with minimum hardware, nothing happened.

I removed the CPU, started the computer, and nothing happened. There is supposed to be an audio POST message (I left the speakers attached)? but nothing at all.

I called ASUS and they are going to do an advanced RMA for me, so I will get a new motherboard soon.

I put this computer together about 12 months ago. It has been running 24 hours a day since then, and I use it all the time.

What do you experts think? Which hardware item is the mostly like the cause of the failure? Motherboard? RAM? (I tried starting it with only one stick (first with one, then with the other), still nothing? Power supply? (I could see the green light on lit up on the motherboard?) Something else?

My current plan is to try everything with the new motherboard. If still nothing, then I don?t know what I will do? replace the power supply?

Thank you very much for all help!

quanttrade99z



ASUS A8N-SLI Premium Socket 939 NVIDIA nForce4 SLI ATX AMD Motherboard - Retail

ATI 100-435513 Radeon X800XL 256MB GDDR3 PCI Express x16 Video Card - Retail

Antec NEOPOWER 480 ATX12V v2.0 480W Power Supply - Retail

Kingston ValueRAM 2GB (2 x 1GB) 184-Pin DDR SDRAM DDR 400 (PC 3200) System Memory Model KVR400X64C3AK2/2G - Retail

Seagate Barracuda 7200.8 ST3200826AS 200GB 7200 RPM Serial ATA150 Hard Drive - OEM

Antec Performance I P180 Silver 0.8mm cold rolled steel for durability through the majority of chassis, 1.0mm cold rolled steel around the 4x HDD area ATX Mid Tower Computer Case - Retail

AMD Athlon 64 X2 4400+ Toledo 2000MHz HT Socket 939 Dual Core Processor Model ADA4400CDBOX - Retail

NEC DVD Burner Black IDE Model ND-3520A-KIT-BLN - Retail
 

vhx

Golden Member
Jul 19, 2006
1,151
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I'd say PSU. If you added another HD when it already had power problems, that is probably the last straw for that PSU.
 

Athadeus

Senior member
Feb 29, 2004
587
0
76
I bet on the PSU too. I don't know if the Neo Power uses different capacitors than the TruPower or the SmartPower, but I have had problems with a 430w and a 480w Antec TruPower 1.0. Also, do the fans spin at all when you flip the PS switch, or press the power button? Finally, 480 watts is plenty for those parts, as long as the power supply was stable. If it was already the PS being quirky, then adding that HDD probably really upset things as vhx said. If you want to know about any other good ps's, just ask!
 

MrUniq

Senior member
Mar 26, 2006
307
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there were issues with the neo power and asus boards i believe. Maby a member here can link a thread. Pick up a psu from the store and i bet it works again.
 

WobbleWobble

Diamond Member
Jun 29, 2001
4,867
1
0
Originally posted by: MrUniq
there were issues with the neo power and asus boards i believe. Maby a member here can link a thread. Pick up a psu from the store and i bet it works again.

I had a problem with a Neo and my Asus A8N-E. Call up Antec and RMA your PSU. My replacement worked great.

But in my case, it wasn't working from the beginning, which is quite a bit different than your case.