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iPac4 prevents computer boot [SOLVED]

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Hitek:
I have an iPac4 USB, and it's working fine except that if it's plugged in when the host computer is turned on or rebooted, it causes the machine to hang on the Dell screen. The machine is a Dell Vostro running Win XP SP3. Once the machine has booted into windows, I can plug in the iPac4 and it works fine. I have no problems updating keymappings or anything, I'm just getting tired of having to unplug and replug it any time the machine boots.

Anyone have any ideas on what's causing this or some way I can stop the issue?

1UP:
Is it USB?  I have had my machine hang at the BIOS screen when certain USB devices are plugged into certain ports.  Startup continues if the device is removed.  Try a different port and see if that helps.  Seems like hubs are more likely to cause this problem.  Also seems to be unrelated to OS since I've had this happen under XP, Vista and Win7.

jeef:
It sounds like the computer is trying to boot from the USB device. See if your BIOS has an option to disable USB boot.
(not all computers have an optical drive, operating systems etc can be installed via USB stick)

Hitek:

--- Quote from: 1UP on June 07, 2009, 05:14:46 am ---Is it USB?  I have had my machine hang at the BIOS screen when certain USB devices are plugged into certain ports.  Startup continues if the device is removed.  Try a different port and see if that helps.  Seems like hubs are more likely to cause this problem.  Also seems to be unrelated to OS since I've had this happen under XP, Vista and Win7.

--- End quote ---

That's basically what's happening, except startup doesn't continue if the device is removed. It basically locks the machine. Every once in a while, I can manage to press F2 before it locks, then it says "Entering Setup" and just hangs there. I wonder if there's a BIOS update that might fix it.


--- Quote from: jeef on June 07, 2009, 06:02:59 am ---It sounds like the computer is trying to boot from the USB device. See if your BIOS has an option to disable USB boot.
(not all computers have an optical drive, operating systems etc can be installed via USB stick)

--- End quote ---

That was my initial thought as well, so I went into BIOS, set the first boot option to the HD and disabled the 2nd-4th boot options, and also disabled the "boot from other devices" option, but that didn't solve it. I'll do some googling and see if there's an updated BIOS to fix this issue.

jeef:
does the "boot from other devices" specify "boot from usb" as an option?

Another thing you can try, when you see the Dell boot screen, you can sometimes press 'tab' or similar to hide the logo screen and show the actual POST screen, that might help with debugging, so you can see where it's halting.

Oh, actually, see if there's an option in the BIOS to disable 'halt on error'.

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