Question about VIA ECS PM800-M2 PM800 P4FSB 800 Supports Intel Pentium 4 Processor (REV:1.0) (ECSPM800M2V10) Motherboard

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Bios Problems i need to flash my bios and do not know what would file to down load. In my mother board its written 861cs. and the display chip set is VIA. The number written on ROM Bios Winbond and the number is w29c020cp90n205047621060jsa. Could you please help

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So you have the PM800-M2 board?
Visit -
You can fine the latest bios there. And it also explains how to use it. But you need to confirm this is the board that you have first!

Posted on Oct 24, 2007


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Location of bios chip on dell Inspiron 1764

The BIOS chip is soldered onto the motherboard. It is about a 1/2" square chip. The below link is the Dell Inspiron 1764 Service Manual from Dell for the Inspiron 1764. It is in PDF format (Adobe Reader online file, and downloadable).

Opens in Adobe Reader so make sure you have the program already installed, or download and install Adobe Reader from first.

Once the Service manual is opened. Go to the: System board section. Then scroll down to Replacing the Coin-Cell Battery Click on the link...That is the BIOS chip battery. The actual BIOS chip is not a removable chip on that particular motherboard, but a soldered in place chip located on the opposite side (surface of the motherboard) right near that coin-cell battery location. That chip may be reflashed w/ the latest BIOS by downloading the latest BIOS.bin file avail. from DELL at the following Drivers link.
Choose Drivers and Downloads from the left>Choose the installed OS Version first>Then choose BIOS from the list. The following choices are there; (only 1 version of OS avail. without the actual Service Tag # appears; Win 7 (64 bit OS)).

Windows 7 64 Bit>Latest BIOS file version is A13 (Released 06 Apr 2011) If that matches your OS (Go to Start>Control Panel>System>General Tab and look for Windows 7 and 64 bit as the type of OS installed, you can also download Belarc Advisor from and install and run it, allow the hardware and software inventory to load (print out the inventory) if possible, on the right near the top the System board info and currently installed BIOS info will show on the inventory along w/ everything else about that current laptop setup), if so, and Win 7 64 bit shows and the BIOS version is anything less than A13 (a smaller # like A6 or A11...then you need to update the BIOS to the A13 flash), is listed, go download from dell the A13 file, and install to flash the BIOS to the A13 latest BIOS version released. Then delete that downloaded file. You only need to flash it once.

Or go to: Choose Support>Look on the bottom of the laptop for Service Tag: Number or Tag: and enter the # printed there usually a short combo of letters and #'s. Or you can have it scan for the tag # by installing the provided program. Then once you are at the Inspiron 1764 location>Enter your Operating System Version or flavor installed>Choose Drivers. In the Drivers section choose BIOS, and look for the highest BIOS Version Number and latest file date created.

IF THE MOTHERBOARD will not boot to the BIOS setup Screen (Motherboard BIOS is BRICKED or DOORSTOPPED=Corrupted BIOS, usually caused by incorrect flashing w/ the wrong file, or an inturrupted flashing...Though, sometimes just a dead motherboard BIOS coin-battery type battery replacement, and re-flashing with the latest file will cure the issue though).

And should a new preprogrammed BIOS chip be required to UNBRICK THE MOBO, for the Inspiron 1764. One can be purchased on ebay at the following link, but should only be installed by a VERY qualified technician. (Notice it says on their pic....New chip to be soldered on board). That takes skill to properly handle, desolder and resolder the chip properly. DELL and others can also reflash bricked BIOS CHIPS. Chips that were flashed incorrectly turning the motherboard into the dreaded doorstop.

But if the BIOS setup is reachable (the computer will start and boot to at least the BIOS Setup screen...Usually F2 or F10 or Delete keys. Just watch the screen on boot up, choose the BIOS Setup or Setup key combo listed). If so, (you can get to Setup, then the BIOS Chip is not bricked, corrupted, damaged, or doostopped), In that case, just go download the latest BIOS Version .bin file from the above Dell Drivers Link for your OS version, and go into Windows and double click the file w/ the power adapter plugged in and all other programs closed...follow the instructions, and do not interrupt the BIOS Flashing process (very IMPORTANT!) The computer will simply restart after the BIOS flashing is completed...You may have to go back to setup after it restarts and load default settings if it does not load Windows after the flash, then restart again.

Good Luck!

Sep 29, 2014 | Computers & Internet


Intel 845gvsr mainboard no display problem

this problem is normal because of the BIOS chip failure normally

when u get ram out and start computer it gives beeps and when u put back the ram and power on PC it gives no beep no display.

Fix the problem:
tools required:
1. hot air gun
2. 512kb fresh bios chip/ if the old chip is right then no need of newer one
3. p3 mainboard (with the BIOS socket) for reprogramming the chip
4. dos bootable hard disk
5. bios bin file.
have not the file ,
don't worry: this file can be made from the bios chip of a working mainboard using the bios flash utility.
flashing software: best is Uniflash.

1. with hot gun, get the bios chip out of the board,
2. reprogramme the chio with correct bin file.
3. put the bios back

copy the file in dos bootable hd
run the hdd on p-3 board
pull the bios out of running board (with slight care)
put the 845gvsr bios chip in place of p-3 bios
run uniflash and flash the bios
power of p-3 computer and get bios out

for how toprogramme bios chip : check the page

on Jan 24, 2010 | Computers & Internet

2 Answers

Need bios password?

Thats why they tell you not to save the information on a file on your hard drive. You should have it written down. I bet you won't make that mistake again!

May 29, 2014 | Acer AZ5771-UR21P 23-Inch All-in-One...

1 Answer

I have a desktop with an amer megatrend bios.I want to get a new bios that works with win 8.1 and needs to have support for PAE,NX.and SSE2

It's best to simply replace the entire Mother Board than try to replace the BIOS. Replacing a Mother Board vs replacing a BIOS is way easier.

Your current BIOS MIGHT work if you can find a flash file for it, but you have to be careful. If the BIOS your flashing isn't in production it's usually only PATCH flash file, to fix a problem with a BIOS, not upgrade it. And if you use the wrong flash file, it will TRASH your BIOS!

The BIOS, which is a chip, is usually micro-soldered to the Mother Board with high precision, by a robotic arm, and not easily removed or duplicated. The exception is if you happen to have a BIOS chip, that can be replaced, in a socket, but this is unusual instead of common.

The best source for BIOS info such as you are looking for is the American Megatrends Website itself at: AMI American Megatrends Inc Aptio (compatible with Windows 8) however their website is for the Mother Board manufacturer so you can't buy the BIOS as a consumer, but through a reseller, AMI Office, Authorized Representatives, etc (AMI American Megatrends Inc How to Buy).

You can however, buy a replacement Mother Board with a BIOS already installed on it (that's the way you usually buy them - with the BIOS pre-installed on the Mother Board) that's PAE, NX, and SSE2 and whatever else you want compatible. A great website to find computer parts and kits, new, refurbished, out of box, etc is the Tiger Direct Website at: TigerDirect com Electronics Tablets Phones Office Supplies Video Games. Just search for BIOS to find your specs, then check the bottom for possible best Mother Board kits to replace the one you have now. Hope this helps. :-)

Mar 03, 2014 | Computers & Internet

1 Answer

How to restore my bios on a desktop.

Remove the "button" battery on the motherboard and turn the computer on.
Shut down and put battery back in.

or ... there are two (or 3) pins next to the BIOS chip that may be marked reset / normal.
Either temporarily short the two pins and release (done)
or ... move the jumper from one side of the set to the other side of the set (pin 1 & 2 .. move jumper to 2 & 3) and then back to the original position (done)

Sep 21, 2009 | Computers & Internet

1 Answer

Bios problem

Here a link from Gigabyte that will help you fix your corrupted Bios problems.


I hope this helps, and thanks for using fixya,


Jan 24, 2009 | Gigabyte 8VM533M-RZ (GA-8VM533M-RZ)...

3 Answers

Intel upu ucode loading error

While starting computer a msg appear " intel upu ucode loading error" after pushing F1 computer get start my computer having ASUS mother board P5BMX/WIFI-AP and intel core2duo procesor Please help

May 19, 2008 | Computers & Internet

1 Answer

Windows 200o pinstallation problem on intel 945 motherboard

I think that this can be bypassed on a per boot basis (press F7) on the boot where it asks you to press f8 if there is any problems. (before win2k flash screen)

you can get round this by updating your motherboard's BIOS

To upgrade your bios you need to follow the online instructions carefully.  (mis flashing your BIOS  can stop your board from loading at all)


To upgrade to the latest bios  you first need to upgrade to ver 1788 (you cannot go direct to the latest version.. if your current BIOS Version is already 1788 you can skip this

please read and follow the instructions on this page*+2000&lang=eng
one this is completed you can upgrade to the latest version here*+2000&lang=eng

Oct 26, 2007 | Intel D945GCZ Motherboard

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