NEC 3540A Drive not recognized

I Just got my OEM Drive from NE And installed it but my computer doesn’t recognize it and it bogs down my boot up time and even kills my DVD-rom from being recognized i usually have no problems when doing other drives. any Help woud be appreciated.Thanks.

Have you double checked your jumper settings on each drive? Sounds to me that the jumpers aren’t set correctly. If that isn’t it, you might try a different cable.

Definitely sounds like a cable or jumper issue.
Check jumper pins, IDE cable and power cables.

Try it on the cable alone. I had a conflict with it and the other drive on the cable.