motherboard MS 7500 Ver 1.1 jumper to reset bios

bobdylan75
bobdylan75 used Ask the Experts™
on
I have reset the bios eith the switch near the battery,
but now:
The green led is on.
But nothing happens.
No signal on screen,
no led on in the keyboard.

What Hava I to do now?
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Commented:
Hi
You need to switch the jumber back to it's initial position.

Author

Commented:
It's a jumper that returns automatically to its position. Now I put out the battery for half an hour and I wait the result...
Have you another idea? ;)
thanks

Author

Commented:
note that I have two identical motherboard and I made the same 'error' with the same result.
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Author

Commented:
It's not a switch, uit's a little spring lever.

Author

Commented:
sorry: it's not a jumper: it's a little spring lever.

Commented:
Hi, if it's a button than you press for bios reset then you don't need to do anything else.
Did you try with an other power supply?
Are both the ATX and ATX 12V powers connected?

Author

Commented:
NO, I don't have at the moment another power supply.
BUt it's not possible that is a issue of the cpu?

Commented:
CPU's tend to break down more rare than the power supplies and motherboards.
When you power on the pc do the fan start normally? Is there any sound coming out of the pc? Any kind of beeping sound?

Author

Commented:
With the original power supply:
No sound, No beep, only green light on. No fan. The only Fan is that one of the power supply.

With another power supply:
4 beeps with red light on.

I have allready change the motherboard, and at the moment I'm using the new one.

Author

Commented:
Before I reset the bios: 9 beeps with red light blinking, with both the two motherboards.

Author

Commented:
sorry: The cpu fan is on, with the original power supply.

Commented:
So with 9 beeps it means that there is a chem sum failure. If after the bios reset it didn't come to then we have an either dead motherboard or a faulty bios.
The 4 beeps that you mention are all short or generally how are they?
You could check the general fault checking steps.
Meaning disconnect all hardware except the most important ones (motherboard, CPU, RAM and VGA card if it's not onboard) reseat the RAM chips or try  different RAM and start from there.
The second power supply that you are using and the second motherboard do you know if they where working? It is very frustrating when you are changing not working hardware with other not working hardware and you don't know it.. :D

Author

Commented:
The 4 beeps are all short.
I have already try different memory cards (new).
I have change motherboard with a new one (refurbished).
The power supply was not new :(
The strange thing is that both the two motherboard gave 9 beeps before reset them.
The only two thing that I have no chage are the cpu and perhaps the power supply.
I will try with a new power supply.

Author

Commented:
I have tried with a new power supply: 4 beeps with red light blinking.
Commented:
Hello again.
As I ve told you before 4 short beeps seems to be BIOS check sum error
http://www.pchell.com/hardware/beepcodes.shtml
The suggested way to solve it is the following
First check video. If video is working, you'll see an error message. If not, you have a parity error in your first 64K of memory. First check your SIMM's. Reseat them and reboot. If this doesn't do it, the memory chips may be bad. You can try switching the first and second banks memory chips. First banks are the memory banks that your CPU finds its first 64K of base memory in. You'll need to consult your manual to see which bank is first. If all your memory tests good, you probably need to buy another motherboard
Since you said that you changed memory check that the new memory is compatible with your motherboard (correct type and speed)

Author

Commented:
So I have buy a broken matherboard as the original one?
very strange.
I'll try with diffenter memory cars (even if I have already try).

Author

Commented:
why after press rest spring lever near the bios, the screen doesn't work, the keyboard doesn't work, fans work, and nothing happens.
This happens with both the two motherboard, the new one and the older one.

Commented:
can you please attach a picture of you motherboard?
The one that I found says that it's a hp motherboard is that it?
The spring button should come back at it's original place after you press it. If not try pulling it back at it's place.
please feed back.

Author

Commented:
The picture you link is the right one.
Th pc is an HP.
Yes, the spring lever works properly.
Today, I will try to use different memory cards.

Author

Commented:
thanks,
at the end was the cpu ;)

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