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Expansion slots (64bit/66MHz PCI slot)
NOTE: In the table below, “I/O” denotes the input/output
when seen from the server.
Expansion slots (for expansion PCI cards)
Pin number
3.3V-system environment
Side B I/O Side A I/O
1 -12V TRST_L O
2 TCK O +12V
3GND TMS O
4 TDO I TDI O
5+5V +3.3V
6 +5V INTA_L I
7INTB_L IINTC_L I
8 INTD_L I +5V
9 PRSNT1_L I Reserved
10 Reserved +3.3V
11 PRSNT2_L I Reserved
12 Connector key Connector key
13 Connector key Connector key
14 Reserved Reserved
15 GND RST_L O
16 PCICLK O +3.3V
17 GND GNT_L O
18 REQ_L I/O GND
19 +3.3V Reserved
20 AD31 I/O AD30 I/O
21 AD29 I/O +3.3V
22 GND AD28 I/O