BIOS Updates forum

Yes! Cdrom doesn't need to be setup,but in most INTEL motherboard,if the cdrom is the ONLY device at secondory channel, you MUST set it to MASTER, NOT SALVE or CABLE SELECT!
try it.

Yes,I think so.
The brand pc manufacturer usually use huge EEPROMs.
I have a DELL BX board which use INTEL E28F008S5 8Mbit flash chip.
I can make sure This ibm board 61h2541 actually use 4Mbit flash rom.


georman

Thanks,all.
I agree with ajzchips. The file $imagepj.usf may be the main bios file, but it can not be directly flashed itto the bios chip.
I decided to ask someone else to help me get the original bios.
Thaks again.

georman

Thanks,nick. I've got the bios file,but when I extracted the file,it makes a bootable disk with a lot of files, I dno't know which one is the image file needed to be falsh to the chip, cause the board have no bios chip (the chip was lost), so I must flash or program it , not upgrade from old bios. W...

I have a motherboard without the bios. The board is a slot 1 mobo using 38L3456 north bridge and via vt82c596b south bridge and smsc fdc37m813 super I/O. The PCB was silkscreened 'ibm corp 61h2511' and a label read 'FRU61h2541' and '11S61H2539ZJ1AM2939D8'. Does anyone can tell anything about this bo...

Because the old poer supply was OK before it's dead, and you just replace a new one, It looks like the new power supply unit has a compatibality problem with your motherboard. I suggest you try another power supply.

Read first topic at this forum named "bios upgrade, step by step" by ajzchips then you'll know how to do

Try uniflash 1.24 or 1.26. It can be found at http://rainbow.ht.st

You can get the datasheet of the MXIC28F2000 at http://www.flashbios.org/pdf/28f2000t.pdf . You need acrobat reader to read it. There is a diag on page 3 show which is pin 1 of the chip. If you have a voltage meter (or multi-meter) you can measure the voltage on this VPP pin, IT SHOULD BE +12V( 10% ...

I am very sorry. I don't notice that.
I wrote at web mail server and have no copy, maybe I had to ask Edwin for help me to forword the letter again if you're interesting in it.

VPP stand for Voltage for Programming.It connected to pin 1 of the flashchip. Some motherboard have a jumper to manually set the VPP ether 12V or 5V for different type of flashchip, but some do not have. I am not familiar to ABIT motherboard, thus I don't know whether the jumper exists or not on you...

generally there are two types of flash rom:28f(such as MX28F2000) and 29f(such as Winbond 29EE020), 28F series use +12V voltage to identify the chip's ID, 29F series use +5v. This is VPP used for write to the chip. Because pnp BIOS and Windows DO write something(DMI information,ESCD etc) to the chip...

Hi, Edwin and ajzchips
Thank all of you for help.
I've wrote a letter, you can know more about what we talk about (This is beyond the topic in this forum ) and I send it to Edwin.
Mr Edwin, Would you help me to forward the email to Mr ajzchips?
Cause I don't have the email address.
Thanks again.

Hi, Ajzchips. I'm very glad when I received your reply. I can tell you I'm a technical repairman I can sure my motherboard can not work because the bios is dead. I'm interesting in computer hardware. I have enough knowledge and hard tools to repaire the motherborad, and I have external HiLo ALL-03 U...

Thank you Mr.ajzchips. You tell me you have a beta version for 2A69KUU9C, and I try to visit your website at http://ajzchips.freeservers.com , but it can not be accessed from my country(GuangDong,CHINA). I don't know why. Would please email the bios file to georman@21cn.com or post as a reply of thi...