weird new build problem - arghh

che1 · 15 Dec 2006 at 13:58

When i power on my system everything powers up ok, but when it comes to post the internal speaker goes off like an ambulance. I can enter bios, see the post screen where i get "cmos checksum error" and if i press F1 with my hard drive attached i can even get into windows, but as soon as i reboot i need to clear cmos because the screen blanks out.

I've tried switching the memory around, using a different PSU, running the rig outside of the case and changing as many bios settings i can which could possible result in this prob.

My Setup:
Abit KN9 nForce 570 Ultra
Leadtek GeForce 7300 GT
AMD Athlon 64 3800+ 2.4GHz
GeiL 1GB PC6400
Jeantec 450W PSU

Any help would be much appreciated cuss im well stuck!

Captain Fizz · 15 Dec 2006 at 14:08

Get out the manual for the motherboard...
It should tell you what the noises mean.

Is it a siren type of thing?
(CPU overheating / No fan plugged into CPU Fan maybe??)

Or beeps. If it's beeps - Read the manuall again to and it should tell you what they are. (Or google beep codes and your BIOS manafacurer)

It may be worth running memtest from a floppy to check your memory.

Have you went into the hardware monitoring app in your BIOS and checked temps/voltages?

Poolybit · 15 Dec 2006 at 14:12

Have you tried replacing your CMOS battery?

che1 · 15 Dec 2006 at 14:23

all my temps and voltages are fine in bios.

and yeh its kinda like a siren. My heatsink is fanless so there is nothing plugged into the cpu fan pwr plug.

and yeah i tried replacing the cmos bat, still the same.

Captain Fizz · 15 Dec 2006 at 14:28

che1 said:
My heatsink is fanless so there is nothing plugged into the cpu fan pwr plug.

Try plugging a fan in.

inactionman · 15 Dec 2006 at 14:39

Or turning off the cpu fan warning, it will be in the bios somewhere, probably under power/temps.

che1 · 15 Dec 2006 at 14:40

its got a strange 4 pin socket on it, which i dont have. but surely that wouldnt cause such problems?

inactionman · 15 Dec 2006 at 14:44

What you are hearing is the motherboard warning you that your CPU has no working fan attached, it's working as intended. Turn off that warning in the power/temperatures menu, as you don't have a cpu heatsink fan.