View Full Version : Computer doesn't boot properly with 595 connected to LPT?

12-01-2007, 02:05 PM
Subject says it all, the PC doesn't boot to XP properly while the 595 board is connected? I have to disconnect the "in" on 595 board, let XP boot up, then connect the parallel port... is this normal?

12-01-2007, 02:27 PM
Last year I had the same problem when I added a second parallel port card. Other than the boot problem the PC operated normally.


12-01-2007, 10:45 PM
I just hope the pc doesn't crash or anything while I'm not home or not paying attention :( I'm confused why the PC doesn't boot up while the 595 board is connected --- Oh well.

P. Short
12-01-2007, 11:31 PM
Possibly the software that auto-detect devices on the parallel port is screwing up.



12-02-2007, 01:18 AM
Do you have power to the 595 when you are booting?

Or does it cause the same problem with and without power to the 595?

12-02-2007, 03:55 PM
Power to the 595 is on.. The whole reason I'm worried about it at all is if the PC locks up, reboots or anything, I wanted to make sure the "show will go on" unattended....

No big deal.

12-02-2007, 04:03 PM
Check to see if any of your pins on the IN RJ45 connector have voltage on them. WIN XP is probably sensing a voltage on one of the pins and wants to identify it as a new device.