Computer randomly freezes and becomes totally unresponsive

[Kamui]

Hey guys, I was wondering if anyone could give me some insight on this
matter.

Lately and progressively getting worse, my computer would completely
freeze. There is no crash, there is no response. It happens at
random times too, from playing Titan Quest, to surfing IE, on a
screensaver, watching TV on my tv card, to the windows boot up screen,
before anything is even loaded. It started happening a few weeks ago
and was really bad last night. I couldn't go 5 minutes or so without
it locking up. I was wondering if anyone has any insight on what the
common diagnosis is for a problem like this.

My specs:

AMD Athlon64 2.0GHz
Asus A8N-SLI Premium
2x512MB Crucial Ballistix PC 3200
EVGA Geforce 7900GT KO w/ Zalman VF900Cu
250GB Seagate SATA (master drive with windows)
160GB WD IDE
ATI TV wonder PCI
Seasonic S12 600W PSU
Liteon CDRW
LG DVD RW
Antec Sonata Case

I have had problems with the motherboard and ram before, and both have
been replaced. The ram was faulty before and was not allowing me to
POST.

My CPU is passively cooled with a thermaltake sonic tower. I have
2x120mm fans in my case, and a 120mm fan in the PSU.

Speedfan shows cpu temps from ~37-45C
HD temps are 30-35C
Video card temps (via Rivatuner) are ~45-55

Where do you guys think is a good place to start?
Thanks

 

[kony]

Hey guys, I was wondering if anyone could give me some insight on this
matter.

Lately and progressively getting worse, my computer would completely
freeze. There is no crash, there is no response. It happens at
random times too, from playing Titan Quest, to surfing IE, on a
screensaver, watching TV on my tv card, to the windows boot up screen,
before anything is even loaded. It started happening a few weeks ago
and was really bad last night. I couldn't go 5 minutes or so without
it locking up. I was wondering if anyone has any insight on what the
common diagnosis is for a problem like this.

My specs:

AMD Athlon64 2.0GHz
Asus A8N-SLI Premium
2x512MB Crucial Ballistix PC 3200
EVGA Geforce 7900GT KO w/ Zalman VF900Cu
250GB Seagate SATA (master drive with windows)
160GB WD IDE
ATI TV wonder PCI
Seasonic S12 600W PSU
Liteon CDRW
LG DVD RW
Antec Sonata Case

I have had problems with the motherboard and ram before, and both have
been replaced. The ram was faulty before and was not allowing me to
POST.

My CPU is passively cooled with a thermaltake sonic tower. I have
2x120mm fans in my case, and a 120mm fan in the PSU.

Speedfan shows cpu temps from ~37-45C
HD temps are 30-35C
Video card temps (via Rivatuner) are ~45-55

Where do you guys think is a good place to start?
Thanks

Inspect power supply for vented capacitors (after leaving
unplugged for a few minutes first).

 

[Alfie Noakes]

Hey guys, I was wondering if anyone could give me some insight on this
matter.

You could try checking the system event log (if you're running XP) -
there may be some clues in there. Run EVENTVWR.MSC.

 

[Plato]

Test the power supply leads with a volt meter?

 

[Plato]

Lately and progressively getting worse, my computer would completely
freeze. There is no crash, there is no response. It happens at

Close all background apps and see if it still happens.