HP Compaq 6530s Maintenance And Service Manual page 117

I/O address (hex)
220 - 22F
230 - 26D
26E - 26
278 - 27F
280 - 2AB
2A0 - 2A7
2A8 - 2E7
2E8 - 2EF
2F0 - 2F7
2F8 - 2FF
300 - 31F
320 - 36F
370 - 377
378 - 37F
380 - 387
388 - 38B
38C - 3AF
3B0 - 3BB
3BC - 3BF
3C0 - 3DF
3E0 - 3E1
3E2 - 3E3
3E8 - 3EF
3F0 - 3F7
3F8 - 3FF
CF8 - CFB
CFC - CFF
System function (shipping configuration)
Entertainment audio
Unused
Unused
Unused
Unused
Unused
Unused
Reserved serial port
Unused
Infrared port
Unused
Unused
Secondary diskette drive controller
Parallel port (LPT1/default)
Unused
FM synthesizer—OPL3
Unused
VGA
Reserved (parallel port/no EPP support)
VGA
ExpressCard controller in CPU
Unused
Internal modem
"A" diskette controller
Serial port (COM1/default)
PCI configuration index register (PCIDIVO-1)
PCI configuration data register (PCIDIVO-1)
System I/O address specifications 109