No POST beeps

[CardUK]

Hi

I recently built a new PC specs below (end of this message). I made some errors during build (not connecting the 12V power to the mobo, then connecting the wrong 4-pin power plug before realising, and powering up both times).

The system was built and worked ok, however under certain circumstances... Ghosting in DOS and during OS install) it got into a reboot loop (which was resolved by resetting the cmos). I lived with it for a bit but then it stopped booting from the primary drive unless it was chosen as an option on the boot menu (f11) during start up.

I got it into my head that i had shafted the motherboard with my errors. So i got a like for like replacement and tried to swap them over. I got no post beeps or output when i swapped them, I swapped back to the original mobo and still got no beeps anymore?

I have tried using a different power supply and that has not made any difference. As i see it, in my simplistic way, there are 2 reasons for not getting any post beeps at all on an award bios. The first is that the speaker is broken, the second is that the CPU is shot. Is that too simplistic? Have i shafted the CPU during the removing it from one mobo and putting it in the other?

I took all anti-static precautions that i could, and have not had this problem with the last few builds i have done, they have at least posted so i could troubleshoot them.

Any idea's or assistance would be appreciated, thanks,

The components are...

mobo - Asrock AM2NF3-VSTA Socket AM2
CPU - AMD Athlon 64 3800+ Retail AM2
memory - Corsair Value 2GB Kit DDR2-667
Graphics - Gainward GeForce 7800GS+ 512MB DDR3 AGP
Power - cannot remember but quality 350W unit
HDD - WD80GB cannot remember more detail

[rjfvillarosa]

You could try the "out of case minimum hardware build" discussed in this thread: http://forum.pcmech.com/showthread.php?t=132409 or you could try removing all of the hardware including the ram but excepting the cpu just to see if you can get an error POST beep and then slowly start putting back the hardware to see what is locking things up.

[CardUK]

I have not tried out of the case yet, but have tried removing all of the key components, (keyboard, graphics, RAM) and still nothing.