My optiplex gx260 says "Primary hard disk drive not found"

By tripper511 ·
I've been trying to fix this problem for weeks. Every time I start up my Optiplex GX260 its says "Primary hard disk drive 0 not found" and "Primary hard disk drive 1 not found". I checked all my power cables and connections and they're fine. I also installed a new hard drive and that didn't work. I tried re-installing windows xp to no avail. So now I'm stumped, I have no idea what to do next. Any help would be greatly appreciated. Thanks.

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You need to test the HDD with the HDD Makers Testing Utility first

by OH Smeg Moderator In reply to My optiplex gx260 says "P ...


Jusy click on your HDD Makers Name and you will download the correct testing Utility.

First thing you need to do is test in the computer that is showing the error and if it persists test in another computer. If it still shows bad the HDD itself is faulty but if it tests fine on the second test the M'Board, Data Lead or Power Supply is faulty in your original computer.

If this is a SATA HDD you need to include the SATA Driver when you start up the computer so when the first blue screen Appears press the F6 Key and wait till you are prompted then insert a Floppy with the SATA Driver copied to it's Root.

If you do not have a Floppy Drive you need to Slipstream the Install Disc with nLite available here


To make a Install Disc with the SATA Drivers on it.


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by brian In reply to My optiplex gx260 says "P ...

some of the systems released in this line had bad ide controllers built into the motherboard if i recall properly. if you are getting those errors on both ide controller zero and one, i would check the BIOS to make sure they are still enabled, if not, re-enable them. if they are enabled, try different IDE cables. but first, like the above post recommeneded, test the hard drives with the manufacturer testing software, which is usually available on their website. IF THE DRIVES TEST GOOD, THEN TRY THE CABLES.....save yourself some time and hassle by testing first that way you don't have to go through the headache of getting the cables and changing them.

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How do I test

by tripper511 In reply to BAD CONTROLLER

How do I go about testing the hard drives if my computer can't recognize them? Also how to I check that BIOS has them enabled?

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