System Features
EBX-22 Reference Manual
29
CPU
The VIA Eden is an extremely low power consumption (7W at 1 GHz) x86 microprocessor with a
maximum operating frequency of 1.2 GHz and bus speeds up to 800 mega-transfers per second
(MT/s). The VIA Eden features two 64 KB Level 1 caches, one 128 KB Level 2 cache, and
DDR2 SDRAM support.
System RAM
C
OMPATIBLE
M
EMORY
M
ODULES
The EBX-22 accepts one 240-pin SODIMM memory module with the following characteristics:
Size
Up to 1GB
Voltage 1.8V
Type
PC2-4200 compatible (DDR2 533 MHz)
CMOS RAM
C
LEARING
CMOS
RAM
A jumper may be installed into V1[2-3] to erase the contents of the CMOS RAM and the Real-
Time Clock. When clearing CMOS RAM:
1.
Power off the EBX-22.
2.
Remove the jumper from V1[1-2], install it on V1[2-3] and leave it for four seconds.
3.
Move the jumper to back to V1[1-2].
4.
Power on the EBX-22.
CMOS Setup Defaults
The EBX-22 permits users to modify not only the CMOS settings, but the defaults as well. This
allows the system to boot up with user-defined settings if CMOS RAM is cleared or corrupted.
All CMOS Setup defaults can be changed, except the time and date. The CMOS Setup defaults
can be updated with the Flash BIOS Update (FBU) utility (version 3.11 or later), available from
Warning!
If the CMOS Setup default settings make the system unbootable and prevents you
from entering CMOS Setup, the EBX-22 needs to be serviced by the factory.
D
EFAULT
CMOS
RAM
S
ETUP
V
ALUES
After the CMOS RAM is cleared, the system will load default CMOS RAM parameters the next
time the board is powered on. The default CMOS RAM setup values are used in order to boot the
system whenever the main CMOS RAM values are blank, or when the system battery is dead or
has been removed from the board.
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