Got a very much barebones Dell yesterday, and spent a while making a decent machine of it. Have replaced single connection hdd IDE cable and added a cradle and second hdd. Also added a cd-rw. But the problem came after I added a floppy drive. It won't even turn on. It's not difficult, just two cables which it is impossible to get the wrong way round. What I can't understand is why the power switch had no effect. The power light on the machine just blinked orange all the time. Took the fdd out and it started up fine.
The pc is a Dimension, and all the extra bits, including the fdd are from a Dimension that has been taken out of use.
Thanks. Yes I'd thought of both of those, but it still shouldn't stop it switching on. Refusing to boot yes, but causing the power on switch to have no effect is a very strange. I'm going to have a look in the bios later.