DMI BIOS date & System BIOS date not the same in AIDA64 on WinXP

[Gelip]

coreboot 4.0-4772 + SeaBIOS 1.7.3-117

I noticed that BIOS date in AID64 on WinXP is different in Computer > DMI and Motherboard > BIOS

Computer > DMI > BIOS > Release Date: 12/11/2013 (this is date build coreboot)

Motherboard > BIOS > System BIOS Date: 06/23/99 (this is probably SeaBIOS date from src/misc.c file)

In vendor bios, date is the same in both locations.

DMI date: http://savepic.net/4009104.htm
System BIOS date: http://savepic.net/4058259.htm