System Structure
Table 2-4: Mainboard Components
Item
Component Code
Description
1
CN3
Top: PS/2 mouse port
Bottom: PS/2 keyboard port
2
CN4
Top: Parallel port
Left: Serial port
Right: Monitor port
3
CN6
USB ports (two)
4
JK1
LAN port (RJ-45)
5
CN2
4-pin, 12V ATX power connector
6
CN1
20-pin ATX power connector
7
DIMM1 to DIMM4
DIMM slots
8
CPU FAN
3-pin CPU fan connector
9 U7
Intel
82879P chipset (north bridge)
10 U18
Intel
ICH-S chipset (south bridge)
11
IDE2
Secondary IDE channel UDMA-100
12
IDE1
Primary IDE channel UDMA-100
13
SATA1
7-pin port 1 for 150-MBps SATA
14
SATA2
7-pin port 0 for 150-MBps SATA
15
FLOPPY
34-pin FDD connector
16
U27
Phoenix BIOS v4.06 chipset
17
CN11
4-pin SCSI activity LED connector
18 BT1
Battery
19
CN14
9-pin front panel I/O connector
20 SW1
Dip
switch
21 BU1
Internal
buzzer
22
PCI2 to PCI4
64-bit/66 MHz PCI bus slots
23
PCI1 and PCI5
32-bit/33 MHz PCI bus slots
24
U29
Video frame buffer
25
U25
ATI Rage XL VGA chipset
26
U16
Broadcom 5705 LAN chipset
continued
2-6
HP ProLiant ML110 Server Operations and Maintenance Guide