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IBM Hard Drive type 0665

strollin

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Apr 16, 2008
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I acquired an IBM hard drive type 0665. It's a FH drive made in Havant, England. When I tried searching for the parameters for this drive, I came across 3 different type 0665s. There's a 0665-30 (20M), 0665-38 (30M) and a 0665-53 (44M). Can anyone tell me how I can identify which 0665 this drive is? It only says it's a type 0665. There is an additional label on the machine that has this number: ESP 177-38. I don't know if the -38 on this label means that it is a 0665-38. Can anyone provide any other info to id the drive?

Additional info: I tried it as a 20M (type 2 in AT setup) and it fdisked and formatted fine. I then tried it as a 30M (type 8 in AT setup) and it also fdisked and formatted fine so I believe it is actually a type 0665-38. It came out of an 8Mhz PCAT so it makes sense that it would be a 30M drive.
 
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modem7

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The 0665 used in the IBM AT was 30 MB is size and a type 20 (733 cyl, 5 heads, WPC of 300, 17 SPT --> 30 MB).
IBM put a white sticker on them that contained the defect track list and the number "20".
Therefore, the presence of that "20" on your 0665 will indicate the 30 MB version.
 

Stone

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I just 'found' one of these in my stuff I was looking through for something else. :) If anyone wants yhis drive, PM me as I rarely check this particular forum.
 

dongfeng

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I have one of these in my 5170. It was used for about 15 years as a door stop in the IT department where I used to work - I took it home, and it's been working faultlessly in my AT for nearly two years now :)

If you have the later 8MHz AT mainboard, the drive is configured as a a 30MB "Type 20".

mysterydrive01.JPG
 

modem7

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I have one of these in my 5170. It was used for about 15 years as a door stop in the IT department where I used to work - I took it home, and it's been working faultlessly in my AT for nearly two years now :)
Those dents in the top suggest a hard life.

If you have the later 8MHz AT mainboard, the drive is configured as a a 30MB "Type 20".
Actually, one 5170 motherboard revision earlier:

Type 1 motherboard (6 Mhz, BIOS = 01/10/84) - No support
Type 2 motherboard (6 Mhz, BIOS = 06/10/85) - Yes
Type 3 motherboard (8 Mhz, BIOS = 11/15/85) - Yes
 

modem7

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Would 0665 work in an IBM 5160 or compatible XT?
In XT-class computers, the motherboard BIOS has no support for hard drives, instead, the support being in the XT-class hard disk controller.
So what is needed is an XT-class hard disk controller that supports your particular IBM 0665.
See [here] and [here].

IBM 0665-30 = IBM type 2 = 615/4/17 ('30' is the unformatted capacity)
IBM 0665-38 = IBM type 20 = 733/5/17 ('38' is the unformatted capacity)
IBM 0665-53 = IBM type 21 = 733/7/17 ('53' is the unformatted capacity)
 
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