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Unread 12-03-2006, 06:08 PM   #41
wgong
Cooling Neophyte
 
Join Date: Nov 2006
Location: Wollongong NSW Australia
Posts: 16
Default Re: 4100 - LBA48 support

Quote:
Originally Posted by blue68f100
Did you loacte the clock chip? Anap use to store unit drive config, network settings and admin password in the clock chip.
The clock chip is part of U9 (the 82371EB (PIIX4E) south bridge just to the right of the Intel Flash chip) as can be seen by its proximity to Y1 (the 32768Hz watch crystal).

According to the data sheet for the 82371AB (an earlier version than the 82371EB found on my PCB) the RTC has a 256 byte battery-backed CMOS SRAM with two 8 byte lockout ranges.

http://www.intel.com/design/intarch/...s/29056201.pdf
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