Not sure about v4 (been WAY too long) but with tmsh in v10+, the command is:
tmsh show /sys hardware
output:
Sys::Hardware
Chassis Fan Status
Index Status Fan Speed(rpm)
1 up 10227
2 up 10227
3 up 10546
Chassis Information
Maximum MAC Count 2
Registration Key -
Chassis Power Supply Status
Index Status
1 up
2 not-present
Chassis Temperature Status
Index Temp(degC) Location
1 23 Air Inlet
CPU Status
Index Temp(degC) Fan Speed(rpm)
1 38 10546
Hardware Version Information
Name cn0
Type crypto
Model Cavium NITROX-PX
Parameters -- --
version CNPx-MC-SSL-MAIN-0017
Name cpld
Type pic
Model F5 cpld
Parameters -- --
version 0x13
Name cpus
Type base-board
Model Intel(R) Core(TM)2 Duo CPU E6400 @ 2.13GHz
Parameters -- --
cache size 2048 KB
cores 2 (cores/cpu:2)
cpu MHz 2133.467
Platform
Name BIG-IP 3600
BIOS Revision F5 Platform: C103 OBJ-0335-01 BIOS (build: 130) Date: 12/28/09
Base MAC 0:1:d7:99:47:40
System Information
Type C103
Chassis Serial f5-xxxx-xxxx
Level 200/400 Part 200-0293-06 REV A
Switchboard Serial
Switchboard Part Revision
Host Board Serial
Host Board Part Revision