Im stumped on this one.

[warside666]

Ok so I've been working on computers for the last few years, i taught myself and i can build flawlessly working computers from previously collected parts. Until recently, my girlfriends mom had me fixing her sons computer it was loaded with junk all ports were dusty the usual with old computers, the problem is that it will not post and refuses to help me out no beep code or anything. I have had this problem on a previous computer project however that was solved simply by removing the ram. I just wish that was the samecase because i have the motherboard completely stripped down to Only the; Psu, Processor, and the heatsink. I have even removed the cmos battery in effort to retrieve some sort of beep code and yet still nothing.
Almost 90% of thetime when this happens people were assuming that it was unfixible, however ive heard alot of them being fixed and am hoping that someone could help me solve this little neusance.
Here are it's spec's:
Type-Foxconn WinFast 6100K8MA-RS motherboard
Processor- Amd Athlon 64
Bios- PhoenixBios d686
Power supply ports- 24 pin main, and a 4 pin for some reason.
Psu-compaq 20 pins and still powers it up nicely I tried 2 other psu's that came to no use as well.

What is happening that I am aware of is that it is making no effort at all to post, as stated i have tried everything i could think of to diagnose it including a new psu cpu ram and a new pci e graphics card. Everything seemingly is live and is active it just refuses to project a post and beep codes.

Help please?:confused:

[IM back!]

Almost 90% of thetime when this happens people were assuming that it was unfixible
indeed, you can count me to the pessimists. I'd say its a dead mobo, have you tryed the components (cpu, ram etc) in another pc? how about the capacitors? are they in good shape? I also had a old PC which wouldn't post if the 4 pin connector was plugged in.

[Sylvander]

1. "it will not post...no beep code or anything"
(a) Does it appear totally dead or are there any signs of life?
(b) Are you using the [faulty?] on-switch, or shorting the pins on the mobo?
(c) Any sign that the post ever begins/runs under any circumstances?
(d) With all RAM removed, if you get no warning beeps of the failure of the 1st RAM test...
Then...
Does the internal speaker function? [No beeps if it doesn't, even if they are generated]
Connect a keyboard. [The POST may be halting (at failure to initialize the keyboard controller) prior to the 1st RAM test]

2. "i have the motherboard completely stripped down to Only the; Psu, Processor, and the heatsink"
Have the mobo out of the case on a non-conducting surface [to eliminate the possibility of a short to the case]

3. "removed the cmos battery"
Good, eliminates the possibility of faulty BIOS configurations.

4. "it just refuses to...post"
If it really is failing to POST, then there's a fault with either one or more of the few items of hardware remaining connected, or the BIOS.

[Paul Komski]

Just to reiterate.

If true bare-bones on non-conductive piece of cardboard or similar and just psu and cpu+hsf attached there should be beeps (assumes on board speaker or one attached to the mobo header pins) because of the absence of any RAM. You have already replaced psu and cpu with (known good?) parts so, ipso facto, it's the mobo that needs replacing.
Any faulty piece of attached hardware can cause a failed POST.


Power supply ports- 24 pin main, and a 4 pin for some reason.
If the board has a slot for the 4pin accessory plug (12V for the CPU) then use it.
http://www.techaddicts.net/reviews/fsp700/fsp70010.jpg

[warside666]

:p Hey, sorry it took so long, I took the day to study the bios flash tool and other stuff along the lines of reprogramming it.

To imback- Yes I have verified that they work beautifully in other pc's and I have also tried my backup psus on more pcs than the one im working on all of wich worked fine.

To Sylvander- No, the motherboard does have many signs of life, all system fans will activate and run well I have also tested my 125$ graphics card on it though it did not show any post its cooling system worked very well. The power button does work and I somewhat fear jumping it for the fact of burning what I am working to revive. However, it does refuse to turn itself off with use of the button so I have to unplug it from the outlet, the psu's I own there do not include a power switch on them. Only signs of a post attempt is when the hdd spin to life other than that nothing. As I have said there are no beep codes at all even without the cpu and cmos. Onboard speaker does not function at all so I use headphones for it and there still remains no beeps. Yes it is out of case i have taken all measurements for a non conductor setup wound up on a table. Yes i was beginning to suspect the bios so i bought a new one so that I could flash the old.

To Paul- I was doing flashing research earlier and my search yeilded this result, If the motherboard refuses to post it stands at a 95% chance of not being dead, in fact there is actually a virus nicknamed CIH that completely destroys the bios. Making the bios refuse to begin anything or even attempt to begin anything. About the 4 pin connector I tried this last night out of an ocd urge wich I had been fighting all night, but, I have discovered that with the 4 pin in the socket for it there is no power activity at all no fans or hdd.


Also apon further research, I have talked to the pc's original owner, I was told that he had been dusting it out and lost track of what he disconnected,
he stated that he had reconnected everything and then he had discovered the sata ports and a floppy ps wire. He told me he had orriginally plugged it onto it and the fans started spinning. 0.o However he isnt experienced with computers and did not know that he had to unplug the computer before connecting it. He told me at first there was a spark that "jumped" the pc turning it on. After wich it still gave a post however he said it would keep restarting at the xp logo, he unplugged it for a half hour and apon reboot no display.

I have proven that the motherboard is not dead and am about to try a new bios in it, if a bios is fried will flashing it even have any effect? Also there are no shorts on the board only the socket 939 has no white plastic cover it resembels a 775 only it did have the slot for the hand spike.

[mjc]

This board is one of that other 10%...(and that isn't a real accurate number...it's more like 90% of 'dead' motherboards have some level of functioning...that doesn't mean they will work correctly).

0.o However he isnt experienced with computers and did not know that he had to unplug the computer before connecting it. He told me at first there was a spark that "jumped" the pc turning it on. After wich it still gave a post however he said it would keep restarting at the xp logo, he unplugged it for a half hour and apon reboot no display.


It's dead...in all likelihood the voltage regulator built into the board is toast and you are not getting the correct voltages to run everything. Just because the fans work, doesn't mean the board itself is any good. It suffered from a serious short.

And Chernobyl (CIH) is not a very likely candidate. Besides, in order to flash the BIOS it needs to be able to complete POST and recognize/access the floppy drive, at least.

It is EXTRA CRISPY!

[Paul Komski]

Perhaps you know the Monty Python "dead parrot" sketch (http://www.youtube.com/watch?v=4vuW6tQ0218). I think it is analagous.