I have a Compaq Presario SR1222NX11/2004 that I purchased in 11/2004.
It was having a problem with it, it would not start-up.
I believed that motherboard was the problem so I purchased a new one from ascendtech ($49.98).
The motherboard that I was sent was physically defective (long story below).
Ultamatly I found that I had two problems, motherboard and power supply. Because of this it took me another $125 and about 60 days to track down the physical defect problem with the new motherboard.
ascendtech would not accept the motherboard back for replacement as it had been longer than 30 days.
I would never buy anything from this company and would strongly recommend looking elsewhere rather than buying from them.

Here is the "long story"

On December 16th I ordered a Motherboard from ascendtech.
ASUS PTGD1-LA SOCKET 775 MOTHERBOARD VIDEO SOUND LAN
The motherboard arrived while I was out of town for two weeks. Starting on January 3rd I spent over a month tearing my hair out, buying more replacement parts, waiting for them to arrive in the mail, and trying to fix my Compaq desktop PC.

My original problem was the computer would not start up. Sometimes after 3 or more power-ons, it would start-up. But eventually one day, after many, many tries, it would not start up at all. By this I mean it would do nothing.
After doing lots of research, and testing my power supply, which seemed to test ok, I believed it was my motherboard. Thus the regrettable purchase from ascendtech.

After replacing the motherboard it still would not start up. My PC would still do nothing.
I then delved further into my power supply, testing the voltages. Several were low and I ordered and replaced the power supply.
Good news, the PC would power-up. It seemed to run OK, but after 2-5 minutes the PC would lock-up. This happened every time I tried to use it. This was a new problem as I never had it lock-up before.

Next I ordered and installed a new hard drive, my PC would still hang.
I tried different CD and DVD drives, as well as cables (ones I had from an older PC) and the same problem occurred, my PC would still it would hang after 2-5 minutes.

I was eventually left with only one thing left to replace, the CPU. I ordered and waited for the new CPU. With the new CPU it would still lock-up.

I had now spent about $175 on replacement parts and was left with the lock-up problem.
How could this be? Everything was new, or replaced.
I decided to start putting back my old components, one item at a time, to see what would prevent the lock-up.

While removing the CPU, from the new motherboard (the one I purchased from "them") I happened to notice that several connecter pins were twisted and bent.

I put back in my old motherboard with the new CPU, new power supply and new hard drive. Now I’m back to the old problem where it might take 3-4 tries for the PC to power-up. So I’m now convinced that it is my old motherboard that was the original problem (along with the power supply). The new motherboard, that is not able to properly connect to all of the CPU contacts, was the cause of the lock-up.

I then requested a replacement for the Motherboard I purchased from "them".

I realize that it has been over 30 days since my purchase, but I hoped that they would take care of this problem and replace the bad motherboard.

They will not even respond to my emails.