HARDWARE INSTALLATION
23
2.16 FWH Lock Jumper (JP13)
This jumper controls the Firmware Hub (FWH) locking function. When set to LOCK, it prevents
programming or block erase to the top block of FWH. There are 8 blocks of addressable space
controlled by the FWH. The top block (block 7, also called Boot Block) stores some critical
codes. To guard against accidents (such as a virus, program bugs etc.), we recommend that you
lock this block. Even if other blocks were to be erased, you could still recover your system easily
by following the 2 steps below:
1. Reboot with a DOS (95/98) system boot floppy disk.
2. Reflash the BIOS according to section 5.3, Step 5 (Page 59).
ATX Power
Connector
Slot 1
IDE
1
IDE
2
FD
C
AG
P
PC
I S
lot1
(P
CI1
)
PC
I S
lot2
(P
CI2
)
PC
I S
lot4
(P
CI4
)
PC
I S
lot5
(P
CI5
)
PC
I S
lot3
(P
CI3
)
In
tal
IC
H
Li
Batt
ery
Mu
lt
i-I/O
& Key
boar
d
Cont
rolle
r
In
tel M
CH
820
AM
R
RIMM1 (184 Pin DRDRAM Module)
RIMM2 (184 Pin DRDRAM Module)
Bus
Freq
Panel
Connector
JP14
JP13
FW
H
JP10
IrD
A
CM
O
S_
CL
R
C
D
1
C
D
2
AC
9
7
JP
3
JP
6
US
B
Game
Port
Tran
scen
d
FWH LOCK Jumper
JP13
LOCK
UNLOCK
FWH LOCK
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