[jsullivan33403]

A Dell Otiplex GX270, Service Tag DTC9641 does not recognize hard drive.

First, several known good hard drives have been tried, and new cables put in to no avail.

Second, finally get this message "Alert! Previous attempts at booting this system have failed at checkpoint [Opps].

Third, have tried all the options in Boot Device Menu

Any ideas on how to fix??

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Possibly the motherboard is faulty.

[phillipcorcoran]

Possibly the motherboard is faulty.

[jsullivan33403]

No it does not appear to be the motherboard.

[123Runner]

No it does not appear to be the motherboard.

Not necessarily true.

Does the bios recognize the drive?
Are you getting ant activity on the drive? In other words any noise?
Have you tried to reset the bios to default?
Do you have power on the drive connector?

Generally there are very few reasons a drive is not recognized.
Bad drive
Bad ide cable
No power to drive.
Bad main board.

123runner

[jsullivan33403]

Hi 123runner

You put me on to the problem; to wit, the drive was not getting power. I had used a power supply tester to check the power supply, but the cable from it to the HD was bad. I have had many bad power supplies, but this is a first time for a bad cable to a Molex plug. Thanks for pointing me in the right direction.

[123Runner]

You generally don't see to many power cables bad (just loose).

It sounds like you have it sorted out.

[jsullivan33403]

Right on, this is the first time I have ever seen it even though I have been working with computers for over 10 years. It is those off ball things that can drive you up a tree.