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Welcome to BIOSMAN Inc! - Identify BIOS Chips

This site is the BIOS Update site you have been looking for! Do NOT attempt a BIOS update without having a spare BIOS chip handy! Buy an extra BIOS chip with the latest BIOS for your system. How long will you be down if your BIOS update via flash fails?-----ITS NOT WORTH YOUR TIME!-----Spend the $25.00 for a backup BIOS update now! Already blown your BIOS? No problem! Order your replacement or backup BIOS chip below!I

Identify your BIOS chip
2 types
32 pin DIP
This is a DIP chip. BIOSMAN only sells 32 pin DIP chips. If you have a 40 pin or a 28 pin chip we cannot help.

32 pinPLCC This is a PLCC chip. BIOSMAN only sells 32 pinPLCC chips. If you have a 28 pin chip we cannot help.

32 pinPLCC example
This is a typical example of what a PLCC BIOS chip looks like when you remove the sticker.

When you order the BIOS chip (EEPROM) from us this is the information we need when we ask for the BIOS chip data.

SST 29EE020 120-4C-NH


32 pin DIP example
This is a typical example of what a DIP BIOS chip looks like when you remove the sticker.

Notice it's the same model as the PLCC above. This is why it's important for you to specify correctly PLCC or DIP when ordering.

When you order the BIOS chip from us this is the information we need when we ask for the BIOS chip data.

SST 29EE020 120-4C-PH


Ready to order your chip?

Either click on the shopping cart icon at the top of every page, or click here.

Copyright © 2006 BIOSMAN. All rights reserved.
Identify your BIOS company
AMI, Award or Phoenix?

There are a few ways to ID your BIOS company. There are really only 3 (AMI, Award and Phoenix).

Most boards report the BIOS company during POST (The screen that shows information when you first power on your PC).

If you don't remember what company it was, look on the BIOS chip itself. There is a removable sticker. You will remove it anyway to ID the type of chip. On the removeable sticker it will give you the BIOS company name.

All this information is important if you want us to replace, update, upgrade your BIOS chip ( eeprom).


This is a PLCC BIOS chip in a socket. The sticker clearly identifies it as an AMI BIOS.

This is a PLCC BIOS chip and the sticker identifies it as a Phoenix BIOS

This is a DIP BIOS chip and the sticker identifies it as a AWARD BIOS