Yes but afterwards it failed the HP disk diagnostics, so there is apparently something wrong with the drive, not the mobo. The HD fails HP diagnostics and isn't detected by the Win7 installer. So what makes you think it's the mobo?
You can test this by installing HD in another PC, booting installer to see if it's detected.
I'm sorry that I've had a hard time parsing some of your replies. For example you described reinstalling to both HD's but one gave an error so you made an image of the second. This doesn't tell me whether you ever installed to either, or what you even did with the image.
However reading between the lines I understand why you've come to view the WD the way you have.
I wish I could help you more. Maybe with another issue.
Here is what I said earlier. I've just finished doing two separate clean Windows 7 installations from the instructions listed here. One to the 750 GB Caviar Black drive I've had the error message with, and another one to a WD15EARS Caviar Green 1.5 TB drive. Both were done with the drives set to AHCI mode. Again, the 750 GB drive showed the "select boot device" error message on a couple of reboots, and the WD15EARS didn't show any at all, so I made a system image of the WD15EARS Windows 7 installation.
Maybe I'm not being clear. I started out early this morning running the clean command on the problematic 750 GB drive, and reinstalled all of my programs and got Windows 7 running how I like it, as per the instructions you've posted in the tutorial for clean installing Windows 7. I changed to AHCI in the BIOS beforehand. Everything was fine, except the "select boot device" message appeared a couple of times during some of the reboots, not all.
After I was finished with the 750, I removed the 750 from my PC, installed the WD15EARS (1.5 TB), ran the clean command, followed your clean install of Windows 7 instructions, and reinstalled Windows 7 and all my programs. I did everything exactly how I did it with the 750. The only difference was, with the WD15EARS, I got no "select boot device" error messages during the various reboots after the installation of updates. Zero. I really wanted to try and reproduce the error on the WD15EARS, so I rebooted about ten times in a row. No error messages at all. Once I was satisfied that the install on the WD15EARS was error message-free, I took a system image with EaseUS Todo Backup 3.5, which is stored on a Hitachi external 1 TB drive. I didn't take a system image on the first drive, the 750, because of the continuing problem with the error message.
So, in summary, I installed Windows to both drives this morning using your instructions for clean install. It was error message-free on the 1.5 TB and with the error message on the 750.
The problem I had with the 750 not passing HP's diagnostics was solved a few days ago after I switched to AHCI after Windows 7 was already installed where you change the registry entry. I then ran the diagnostics and it passed, and I switched to back to RAID, and it passed. During this morning's re-installation to both drives, where the BIOS was set to AHCI, the 750 passed HP's diagnostics again. Every single diagnostic utility I have run said the disk is fine. CrystalDisk, Chkdsk, WD Diagnostics, HP Diagnostics, and HD Tune all say the disk is fine.
Again, the reason I think it is motherboard-related is someone from another forum said he had a 500 GB Caviar Black 6.0 gbps drive in an HP dc7800 with a Q35 chipset that you could install Windows 7 to, but, like mine, it would return the "select boot device" message. He took that drive and put it in another computer, and it worked fine. So, what are the similarities here? My drive is also a Caviar Black, but a 750 GB, but it is also 6.0 gbps, and a similar chipset (in the 3 series). I wish I had another desktop to try it in. I don't want to give up. I want to keep at this until I get it working.
Try the Diskpart Clean All Command so you know there is no surviving code to interfere. Normally Clean will wipe the boot sector which presents conflicts if there are any. But this is an unusual case.
If you're successful with completing Greg's last suggestion (clean all) but then continue experiencing the same behavior as you've described, then I think you've run across a drive that has intermittent problems of it's own. You've stated that cables and connections were good, other drives (connected to same mobo port???) work fine.
I guess it could be a chipset problem, but would it be intermittent as you've observed? I'd like to see that forum thread you had found.
If issues continue then you're probably to the point where you're going to have to connect it to another machine to verify. If it turns out to be the drive itself, and you've got no data on it that you need, it's not worth trying to repair.
The forum thread is here.
Re: HP Pavilion p6204y Error Message - "Reboot and Select...... - HP Support Forum
Is it AMD's RAIDXpert that your machine's equipped with?
What's the model number of the troublesome drive? Does it work flawlessly when connected as a non-booting drive?
CrystalDisk (as long as it's running) will scan and record the SMART attributes for all connected drives on a routine basis (I think the default is every 30 minutes). Check the SMART attributes that it's recorded for that drive to see if any have changed in an unexpected way. You can use either Crystal's built in graph function or locate/open the text files it creates (easier to spot odd changes using the graphs).
The poster replying in that thread you posted stated the problem, but didn't state whether it's intermittent. He also stated the drive works perfectly in another machine. It's a thread that's only 5 days old; it may be worthwhile for you to join the forum and ask whether his issue was intermittent as well...
No. My motherboard is Intel. The model number of the drive is WD7502AAEX. If I connect the drive as a USB external drive, I have no issues with it.
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