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I THINK 80 wire cables are required for Cable Select to work. Remember, the connectors still have 40 pins.
No, cable select has been around longer than that. I remember long ago it seemed like only a few big OEMs like Compaq used the CS setting. This was in the days of Mode4 hard drives. I think CS requires one of the wires to have a break in it so CS cables have a little notch missing near one end. 80 wire came about as speeds increased and they needed more ground wires between the data wires for signal isolation. ATA33/66/100/133 IDE drives need an 80 wire cable to communicate properly with the motherboard or they'll drop their speed.
..... 80 wire came about as speeds increased and they needed more ground wires between the data wires for signal isolation. ATA33/66/100/133 IDE drives need an 80 wire cable to communicate properly with the motherboard or they'll drop their speed.
You made me curious, so I went and looked it up. That is correct. 80 wire cables are needed to enable faster communication between motherboard and the drive.
On topic, I can't find anything about a mediamax hard drive.Where was it bought?
OK, here's what I found. Mediamax is a label put on drives that have failed testing at a manufacturer's facility and been refurbished by a third party. These are generically called "White Label" drives. I found a description here: White Label Drive Information
If you can return the drive, my advice is to do so and buy one with a brand name you recognize.
Yeah OP, I'd call that a bad drive, actually. Might even be a mislabeled drive. Replace it ASAP.
ON a side note, I noticed your Disk Management - that must be an old machine? You might consider doing the chkdsk /R I mentioned against disk D: to see what it finds.
I'd be really curious to find out what an ATA IDENTIFY DEVICE command returns on that drive. Any possibility of installing smartmontools and running smartctl -a against that drive? Actually, given the condition of your system, I'd run it against all your drives.
All UDMA-2/4 (ATA-66/100/133) should use a 40-pin/80-wire cable. The 40-pin/40-wire can be used with ATA-33 Hard Drives but it was only meant to be used with older HDs and ATAPI drives (CD/CD-RW/DVD-ROM).
As far as your problem goes, since you mentioned the BIOS sees it as 15GB as well, that is where the puck stops. Operating is out of the loop. The problem is either with the related BIOS settings or the port on the motherboard. That is of course assuming the drive was not mislabeled.
Is the mobo old? Perhaps a BIOS update could help.
Are you sure the connector you are using supports large drives?
Worst case scenario, here is what I would try:
Take all other drives out and use this drive alone to see if it made a difference. At least take one of the larger drives that works, and use its cables to connect this new drive. This way you isolate the cable/connector possibilities all at once.
You might consider doing the chkdsk /R I mentioned against disk D: to see what it finds.
I did and I posted the screen shot in the third graphic of post 7.
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