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Old 19th Aug 2014, 9:31 am   #1
reel-to-reel-man
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Default Wanted - SCSI 50 pin HDD's 1GB, 2GB or 4GB

Hello, I'm doing a little project with some old computers and I am looking for old 50 pin SCSI HDD's, can anyone help?
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Old 22nd Aug 2014, 7:25 pm   #2
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Default Re: Wanted - SCSI 50 pin HDD's 1GB, 2GB or 4GB

Somewhere I have a couple of SCSI drives, but I doubt they will be of the size you're after. My son bought some by mistake about 8 - 10 years ago. I vaguely remember they had different connectors to what he needed. Never used & I know we have some adaptor plugs to change the connector types. I had a quick look today but have not yet found them to check what size they are.
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Old 22nd Aug 2014, 10:21 pm   #3
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Default Re: Wanted - SCSI 50 pin HDD's 1GB, 2GB or 4GB

Is there a reason why you want these particular sizes?

You can use pretty much any SCSI disk (50 pin, 68 pin or SCA) with a 50 pin cable if you use the right adaptor.
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Old 23rd Aug 2014, 10:17 am   #4
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Default Re: Wanted - SCSI 50 pin HDD's 1GB, 2GB or 4GB

I have a 5 unit RAID array, but I might be a couple of weeks before I unearth it.

(come to that the entire Pentium II system is availble ,its heavy !)
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Old 26th Aug 2014, 8:47 am   #5
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Default Re: Wanted - SCSI 50 pin HDD's 1GB, 2GB or 4GB

Thanks for the responses, they really need to be 50 pin as its going into an old machine which has limited space, capacity wise its a case of 4GB is the limit, the computer will not recognize larger, if anyone finds some please let me know
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Old 27th Aug 2014, 12:06 pm   #6
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Default Re: Wanted - SCSI 50 pin HDD's 1GB, 2GB or 4GB

Found them, but they are larger capacity than you want.
Both are Maxtor Atlas 10K IV. One os marked 36Gb Ultra 320 68 pin Wide SCSI and the other also an Atlas 10K IV but different connector. It's an 80 pin and unmarked as to capacity. I would think it's the same @ 36Gb. I have adapters to convert each to the other.
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Old 27th Aug 2014, 1:14 pm   #7
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Default Re: Wanted - SCSI 50 pin HDD's 1GB, 2GB or 4GB

The 80 pin connector will be SCA, mostly used to plug disks directly into a server backplane.

I can offer 2GB 68 pin, 4GB 68 pin or 18GB SCA. These can be used with a 50 pin cable with an adapter, or the 68 pin ones can be used with a special cable. Unfortunately I don't have any spare adapters.

I thought I had a 540MB 50 pin somewhere, but I can't find it and may have scrapped it.
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Old 28th Aug 2014, 10:46 am   #8
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Default Re: Wanted - SCSI 50 pin HDD's 1GB, 2GB or 4GB

Hello and thanks for the replies, no they really need to be 50 pin drives, I have discovered the 68 and 80 pin drives take too much current and wont start but I appreciate you coming back to me with what you can offer, the 540MB drives would have been ideal
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Old 29th Aug 2014, 7:29 pm   #9
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Arrow Re: Wanted - SCSI 50 pin HDD's 1GB, 2GB or 4GB

Reel-to-reel man: you have a P.M.

Al. / Aug. 29, '14 //
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Old 29th Aug 2014, 10:09 pm   #10
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Default Re: Wanted - SCSI 50 pin HDD's 1GB, 2GB or 4GB

Quote:
Originally Posted by reel-to-reel-man View Post
I have discovered the 68 and 80 pin drives take too much current and wont start
SCSI drives don't normally spin up as soon as power is applied, though they can be made to do this with a jumper setting. The controller usually tells the drives to spin up sequentially as it initialises so as not to stress the PSU. A server could easily contain 6 drives, which would produce a big power drain if they all tried to spin up at the same time.
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Old 30th Aug 2014, 8:42 am   #11
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Default Re: Wanted - SCSI 50 pin HDD's 1GB, 2GB or 4GB

Yes, you are correct but the unit I have barely has enough power to spin 1 drive, it looks like 5400 RPM drives are best suited as the 7200 RPM just simply will not spin ( but does powered by another device)
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Old 30th Aug 2014, 12:40 pm   #12
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Default Re: Wanted - SCSI 50 pin HDD's 1GB, 2GB or 4GB

I have a Seagate ST5660N (550Mb?, 50 pin, 4500rpm?). I can't remember whether it was used in a PC or a microVAX. Not been used for many years, but as far as I can remember it was working OK when the machine it was in was scrapped.

PM me if you are interested. My wife will be pleased to see 'one more piece of junk' leave the house!
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Old 1st Sep 2014, 8:58 am   #13
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Default Re: Wanted - SCSI 50 pin HDD's 1GB, 2GB or 4GB

Perfect thank you, PM sent
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Old 1st Sep 2014, 9:59 am   #14
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Default Re: Wanted - SCSI 50 pin HDD's 1GB, 2GB or 4GB

Quote:
Originally Posted by Skywave View Post
Reel-to-reel man: you have a P.M.
Sorry, missed this, PM sent, thank you.
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Old 5th Sep 2014, 12:14 pm   #15
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Default Re: Wanted - SCSI 50 pin HDD's 1GB, 2GB or 4GB

Thanks guys for the HDD's, the 550MB will be very useful, however I am still looking for some 50 pin 1GB drives, cant be higher than 1GB or its not recognized ( going in a Commodore A590 HDD side car)
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