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<blockquote data-quote="Wim Romeijn" data-source="post: 218715" data-attributes="member: 17205">I bought a used Alesis HD24 with two original caddies and their drives. The machine would not mount either drive, no matter what I did: setting jumpers. Got two NOS drives but they wouldn&#039;t mount either. Got frustrated and bought a second Alesis HD24. Upon arrival (again with two original caddies), this second machines proved flawless. Both drives mounted properly as supplied. Sticking the two caddies from the second (working) machine into the first HD24 revealed that the (first) machine suddenly performed flawlessly. I swapped drives into caddies back and forth and concluded that A) all drives were ok; B) both machines worked perfectly; and C) both caddies supplied with the first machine were in fact defective.This is strange: the caddies have no electronics and just deliver power (checked and is OK) to the drive inside and connect (wire) the drive to the connector (receptacle) inside the HD24. Also, how can two caddies be bad?Anyway, cleaned the caddy contacts to no avail. Have given up and will now buy two NOS replacement caddies. The upside of this is that I now own two properly working HD24s.</blockquote>

[QUOTE="Wim Romeijn, post: 218715, member: 17205"] I bought a used Alesis HD24 with two original caddies and their drives. The machine would not mount either drive, no matter what I did: setting jumpers. Got two NOS drives but they wouldn't mount either. Got frustrated and bought a second Alesis HD24. Upon arrival (again with two original caddies), this second machines proved flawless. Both drives mounted properly as supplied. Sticking the two caddies from the second (working) machine into the first HD24 revealed that the (first) machine suddenly performed flawlessly. I swapped drives into caddies back and forth and concluded that A) all drives were ok; B) both machines worked perfectly; and C) both caddies supplied with the first machine were in fact defective. This is strange: the caddies have no electronics and just deliver power (checked and is OK) to the drive inside and connect (wire) the drive to the connector (receptacle) inside the HD24. Also, how can two caddies be bad? Anyway, cleaned the caddy contacts to no avail. Have given up and will now buy two NOS replacement caddies. The upside of this is that I now own two properly working HD24s. [/QUOTE]

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