Chapter 2: Installation
2-21
1.5V 4xAGP Slot (P4SGA/P4SGR/P4SGE)
The 4xAGP slot is not included on the P4SGL. You should first disable
the integrated video in BIOS before adding a VGA card to this slot. (See
the "On-Chip VGA" setting in the Advanced Chipset Features section in
BIOS.) The 4xAGP slot is backward compatible with 2xAGP graphics
cards.
To install a VGA card, power down the system and remove the I/O shield
corresponding to the AGP slot. Then, pull back the locking tab on the slot
before inserting your VGA card. After the card is inserted, close the
locking tab if possible (some VGA cards have a notch in the corner of
the board to lock it into place, others do not.) Replace all chassis covers
before restoring power to the system.
IDE Connectors
There are no jumpers to config-
ure the onboard IDE interfaces
J6 and J7. See the table on the
left for pin definitions. You
must use the ATA100/66 cable
included with your system to
benefit from the ATA100/66
technology.
Pin Number
Function
1
Reset IDE
3
Host Data 7
5
Host Data 6
7
Host Data 5
9
Host Data 4
11
Host Data 3
13
Host Data 2
15
Host Data 1
17
Host Data 0
19
GND
21
DRQ3
23
I/O W rite-
25
I/O Read-
27
IOCHRDY
29
DACK3-
31
IRQ14
33
Addr 1
35
Addr 0
37
Chip Select 0
39
Activity
Pin Number
Function
2
G ND
4
Host Data 8
6
Host Data 9
8
Host Data 10
10
Host Data 11
12
Host Data 12
14
Host Data 13
16
Host Data 14
18
Host Data 15
20
Key
22
G ND
24
G ND
26
G ND
28
BALE
30
G ND
32
IOCS16-
34
G ND
36
Addr 2
38
Chip Select 1-
40
G ND
IDE Connector Pin Definitions
(J6, J7)
Locking Tab
