The dongle is the USB receiver for his cordless keyboard & mouse. I
doubt that it has anything to do with booting. Also, with the dongle
removed, it boots fine, then he can plug it back in and keyboard and
mouse work.
On 11/29/2013 2:18 PM, Winterlight wrote:
At 10:59 AM 11/29/2013, you wrote:
Got a weird problem. I acquired an HP DC7800p ultra-slim tower
(well, they were throwing it out). It set up fine in Linux Mint, so
I lent it to our in-house contractor. He plugged in his cordless
Microsoft dongle and everything was fine until the next day at
startup where the system refused to boot and beeped continuously.
what do you mean by a dongle.. a external flash or hard drive? What
is on it? Check the BIOS and make sure it didn't change the boot
drive. Try booting from a floppy or CD which will tell you the PC is
bootable.
If he plugs in the dongle after boot, then all is fine, it just
won't boot with the dongle in any USB port.
is this dongle a bootable device, could it have changed the MBR of the
active drive?
According to HP the continuous beeping is a 'Serious system issue
such as CPU overheating'. Well, sorry HP, wrong again. If a corded
mouse & keyboard is plugged in, there is no problem, only with this
M$ dongle.
Anyone encounter this weirdness before?
Thanks...Steve
I have had issues where POST will hang when loading USB ports. I don't
know why but I suspect it is because of a high power draw at startup
by the USB devices. Unplug USB ports and the PC goes back to normal.
m
