Solved SSD will not boot when fitted in a Caddy

[Grumpy275]

I have several computers all of them have two caddies fitted. The operating system is normally fitted in one the C: drive and the Data Store is in the D: drive. So far I have used Western Digital drives.
The computer I am having the problem with is an Asus Sabertooth 990FX board with the latest BIOS 1604.
I have decided to fit SSD's to all my computers. This Sabertooth machine allowed the HDD C: drive to be migrated to the SSD. This was done with the HDD C:drive in a Caddy and the SSD in the second caddy in place of the D: drive The migration was successful.
I then remove the HDD C: drive and fitted the newly migrated SSD C: drive to the same caddy which had housed the HDD. I powered up and found the SSD was not recognized. The message to insert a boot disc etc was displayed.
I tried the SSD in another machine with an Asus board this time an M5A 78L-M. The computer booted up OK.
I returned to the Asus Sabertooth machine and tried the SSD connected directly to the SATA ports on the Motherboard.and it booted.

The problem as I see it is the SSD will boot with a direct connection but will not boot when a Caddy is in the circuit.

Has anyone had a similar problem and any suggestions on a Fix.

 

[Berton]

Is the caddy a SATA or PATA? If SATA is the BIOS set to boot the port is plugged into on the motherboard first?

 

[Grumpy275]

The Caddy is SATA. The BIOS is set to boot from "Floppy"/USB first, CD/DVD second and HDD third.

Reading more into your questions do you think it should be the other way round - HDD first?

 

[strollin]

Boot order shouldn't matter.

I assume you checked the caddy over and made sure the ssd was firmly inserted, no bent pins or any other similar problems?

 

[Grumpy275]

Yes I even tried different makes of both caddy and drawer. This has really stumped me. All the combinations I also tried on the M5A 7L-M machine and it ran OK I am starting to think it may be a Motherboard fault. Although the one common factor in the failure mode is the caddy ( of various types)

 

[Grumpy275]

Well I think I have found the solution to the problem. All the caddys or Mobile Racks had one thing in common. They had centronics type connectors. I came across a caddy which has standard SATA connectors on the back and another SATA connector on the inside of the caddy. A PCB is between the two connectors. The Caddy is a ICY BOX IB-129SSK-B. I bought one on spec and it worked. The computer is now running from a SSD in a Caddy.
I don't understand why it had not worked on the other caddys but the important thing is the problem is solved. I hope this may help others in the future.
If anyone can provide a reason for the problem I would be most interested to hear.
Many thanks to those who offered their help.