New build wont post

Tesla

Tesla

Tesla

Soldato
Joined
19 Jan 2003
Posts
17,599
Location
Bristol, UK
Evening folks, I am having a little trouble getting a new build to post.

It's a PC I am repairing for somebody, basically they fried their old motherboard.

The new parts I have ordered are:

FoxConn (Winfast) nf4sk8aa motherboard
A64 3500+
Radeon X300SE

I have salvaged the existing Antec PSU, 2 x 80Gb SATA HDD's, 3 x 1gb DDR, Optical Drive & Floppy Drive.

When I power the PC up the fans and HDD's spin up but the motherboard doesnt post and no screen activity, there are 2 beeps around 2 seconds apart, then a 4second gap, then repeated.

The motherboard has 3 power connections, the extended ATX, 4 pin and 4 pin molex. The PSU has an 8 pin block as the previous motherboard was server orientated S604.

Any ideas on things to check?

I have had a stressy day so all help much appreciated!

Cheers,

Chris
 
Right,

It's a Phoenix BIOS and it's issuing "beep - beep"

I cannot find this listed on any site as an error code :confused:

I have since tried the motherboard with all working components including a different PSU and still have the same problem, pretty sure it's the motherboard. I must be missing something obvious?
 
Ok I would try doing this:

Reseating all core components - CPU/heatsink - RAM - Graphics card.

I would them re-plug all power into all the devices. ATX power lead into the motherboard, power lead into graphics card if it needs one, power into all hard drives and FDD.

One thing, did you apply thermal paste when you installed the CPU/fan? When you reseat it you will need to reapply paste. Just make sure there is a thin even film of the stuff.
 
I have of course used thermal compound, I repair many systems- just stumped on this one!

I have reseated all components, including when I have been swapping them out.

Connected to the motherboard I have:

24Pin ATX
4pin ATX
4pin Molex
 
Reset CMOS. Try each RAM module seperately. Reinstall the BIOS.

If none of these work (in that order), RMA the motherboard.
 
masslac said:
Reset CMOS. Try each RAM module seperately. Reinstall the BIOS.

If none of these work (in that order), RMA the motherboard.
Click to expand...

Have tried resetting the CMOS as I said above, have tried 4 sticks of memory now too.

Unable to reinstall the bios as the PC wont POST at all.

I will pick up another motherboard tomorrow from a local supplier (bought this one online) and report back.
 
lol, sorry, I barely skimmed the thread as I am very tired. Certainly does sound like a bad mobo chip tho. :)
 
masslac said:
lol, sorry, I barely skimmed the thread as I am very tired. Certainly does sound like a bad mobo chip tho. :)
Click to expand...
Thanks for your time though mate, much appreciated.

Will report back after I try out a different mobo.
 
Tesla:

Having tried the mobo with components that you know work, and it not posting, you can be almost 100% sure (I would think) that it is a duff mobo. :)
 
If you tried all those things yeah I would say something is probably faulty and I'm guessing its the motherboard. All will be revealed tomorrow when you get that other board!
 
hp7909 said:
Tried without that plugged-in?
Click to expand...
Yes, with one PSU the PC does not beep but also shows no activity, with the other (Antec Server EPS but can be used with ATX) PSU it still gives the beep error.
 
Tesla said:
{snip}3 x 1gb DDR{snip}
Click to expand...
Doubt those are matched/paired sticks? With my old Socket 939 Asus A8V-Deluxe mobo, all the sticks had to be a matched pair!

Try with one stick & check mobo manual for which precise slot has to be filled for that.
 
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