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HOW INSTALL AN HP SCANJET 5P
FOR USE WITH A COMPAQ PRESARIO 6704 COMPUTER
SKILL LEVEL. Quick and dirty notes
for those experienced in computer hardware and software installations.
The ScanJet I installed had a Symbios 53C416 (HP version)
SCSI adapter. The Compaq Presario 6704 comes with Win 95 and two Modems,
Compaq Presario 288-DF and Presario 336-VSC.
This was a difficult installation. This configuration
uses all available IRQs and the boards and Windows 95 are fussy about which
IRQs are used assigned to which board. The SCSI card kept trying to
grab the COM IRQs and Windows kept trying to make, I think, the SCSI adapter
into a COM port--as best I can determine. And it may be detecting
disabled COM ports on the computer motherboard/BIOS--one or the other or
both...
Anyway, here's how...
Do not install the SCSI card yet!
Get into Compaq's CMOS by pushing the F10 key when the
cursor jumps to the top right of the screen.
Choose Computer Setup
Select Audio
Set the 1st MODEM (33.6) to:
2E8-2EF, 264, IRQ 10, DMA 6 7
Set Audio to:
220-22F, 388-38B, 300-301, IRQ4, DMA 0 5
Select Communications.
Deactivate Serial Port 1
Set the 2nd MODEM (28.8 used for FAX service) to..
2F8-2EF, IRQ3
Note: we have instructed the computer to assign the COM
IRQs and have left IRQ5 (the only one left) free for the SCSI adapter.
Install the HP software.
Go into Start, Setting, Control Panel, System, Device Manager
and remove all of the MODEMS, COM Ports, and sound card drivers (and the
failed SCSI adapter driver if your tried before).
Now, install the HP software and let windows restart, but
kill the power when you see a blank screen (before Win can restart, but after
it has quit).
Install the SCSI card. Make sure the riser is fully
seated. It is fairly easy to bend the cage slightly so the "fingers" at
the rear-right of the cage do not allow the cage/riser to fully seat.
Before turning-on the computer, unlock the scanner shipping
lever to the right rear, plug-in the scanner power cord, attach and double
check the scanner cable, and make sure the LED at the right front of the
scanner is on.
Fire-up Windows 95 and let it detect all of the PnP hardware. The
correct MODEMs and the sound drivers ought to install automatically.
Browse to the HP CD when it asks for the ScanJet driver.
Notes: If this doesn't work. start over: power down,
pull the card cage, fire up Windows, remove all of the drivers, uninstall
the HP software (the uninstall program is in the C:\scanjet directory) and
delete the HP directories, restart, reinstall the hp software, restart, power
off, install the cage, etc. The 33.6 MODEM is in a special-feature ISA slot
nearest the motherboard, which feeds audio to the sound card circuitry on
the motherboard; don't plug anything else into the slot. The new sound
card IRQ may cause some problems with some old DOS/legacy programs/games
which are looking for the default SB configuration; I haven't had time to
determine if this the case. I don't like PnP MODEMs, especially
two of them in same computer. I particularly don't like scanners the
install backwards: software before hardware (but once installed the 5p is
a mighty fine scanner for the money; to bad HP stopped making it).
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Larry
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