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Asus Bios Chips - Hand-Marked !?

F

Fynnon

Junior Member
Hi, i bought an Asus motherboard and looking at it closesy i noticed that the 2 bios chips have hand-marked some letters on them: y and z !

picture012yp.jpg



Then i stumbled upon an article on another forum which has a picture of an Asus motherboard with similar hand-marks on the bios chips

ASUS_DualBIOS.jpg

http://www.hardwarezone.com.au/reviews/view.php?cid=6&id=2760&pg=2

Why are those marks there and what is their meaning?

10x
 
Last edited:
Not unusual.
Most newer boards use serial flash chips for bios. Those only require 3 wires to access the information, older flash chips required 16+ wires. The disadvantage is that you have to flash them before you put them in the device you want to use them in. The older chips could be flashed once installed. So now the chips often come to the factory pre-flashed and are marked so they know what each contains. Flashing serial chips is often done by hand so someone pulls the chip from the tray, drops them in a batch programmer, programs them, marks them with something for what they contain, and sends them to be installed.
 
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