Writing this up for future people when they Google search, since when I started info was very non-existent 
hope it helps future person who reads it!
Crypt Killer uses a 2.5” 40 + 8 pin configuration SCSI hard drive which is prone to failure due to constantly running in arcade settings. Even if it still functions it’s a) loud as hell while running and b) will eventually fail.
So here’s what you can do to restore it / modify it to run off a solid state solution.
Parts
1 - SCSI2SD 2.5” PowerBook edition SCSI to SD adapter
2 - SDHC micro SD card. May work with an XC class but I did not test as I had extra spares lying around. I used a 16GB sized card but smaller is fine. Just needs 420MB or more of space
3 - the MAME CHD file
4 - CHDMAN
PROCEDURE.
use CHDMAN to flash the CHD hard drive image to your SD card. Remember to use disk utility in Windows to identify the drive number. Remember...CHDMAN doesn’t ask “are you sure”....so be sure you are giving it the right drive ID number. DONT blame me if you flash Crypt Killer to your C drive
commands for CMD prompt are here. Make sure both CHDMAN AND the CHD for Crypt Killer are in the same folder or else CHDMAN won’t find the file for flashing. I used version V146
https://www.thekillerinstinctproject.com/kiproject/chdman.html
NOTE: if CHDMAN fails writing to the card it means there is more than one partition on the drive. Clear it with “Diskpart” as I had to do this as well
https://www.seagate.com/support/kb/...-a-drive-through-the-command-prompt-005929en/
the SCSI cable that comes with Crypt Killer has pin 41 and 42 blocked
You can pull these plugs. I used a pair of very fine tweezers. The SCSI2SD adapter has all 50 pins on the board so these will need to be removed or else they won’t connect.
my SCSI cable had no pins inserted into the hard drive side of the cable. If you find pins just use a very fine bit drill bit and drill them out. Check for continuity after the fact
note : pin 41/42 on the CRYPT KILLER pcb DONT seem to go anywhere on the pcb itself but I didn’t probe super thoroughly. To be safe make sure these pins aren’t connected.
SCSI2SD settings
in the SCSI2SD utility set the device as “hard drive” and set the SCSI ID to 0 / Zero. You do not have to restrict the hard drive size down to 420MB. There seems to be no security check in the pcb in regards to the size of the hard drive.
Pop the SD card into the SCSI2SD, reconnect the ribbon cable and press power! Should boot directly into the game!
here is the specific SCSI2SD I used
I just used a cheap Micro Center brand micro SD card so I assume anything halfway decent will work
I hope this helps you future Person I do not know lolol
hope it helps future person who reads it!Crypt Killer uses a 2.5” 40 + 8 pin configuration SCSI hard drive which is prone to failure due to constantly running in arcade settings. Even if it still functions it’s a) loud as hell while running and b) will eventually fail.
So here’s what you can do to restore it / modify it to run off a solid state solution.
Parts
1 - SCSI2SD 2.5” PowerBook edition SCSI to SD adapter
2 - SDHC micro SD card. May work with an XC class but I did not test as I had extra spares lying around. I used a 16GB sized card but smaller is fine. Just needs 420MB or more of space
3 - the MAME CHD file
4 - CHDMAN
PROCEDURE.
use CHDMAN to flash the CHD hard drive image to your SD card. Remember to use disk utility in Windows to identify the drive number. Remember...CHDMAN doesn’t ask “are you sure”....so be sure you are giving it the right drive ID number. DONT blame me if you flash Crypt Killer to your C drive
commands for CMD prompt are here. Make sure both CHDMAN AND the CHD for Crypt Killer are in the same folder or else CHDMAN won’t find the file for flashing. I used version V146
https://www.thekillerinstinctproject.com/kiproject/chdman.html
NOTE: if CHDMAN fails writing to the card it means there is more than one partition on the drive. Clear it with “Diskpart” as I had to do this as well
https://www.seagate.com/support/kb/...-a-drive-through-the-command-prompt-005929en/
the SCSI cable that comes with Crypt Killer has pin 41 and 42 blocked
You can pull these plugs. I used a pair of very fine tweezers. The SCSI2SD adapter has all 50 pins on the board so these will need to be removed or else they won’t connect.
my SCSI cable had no pins inserted into the hard drive side of the cable. If you find pins just use a very fine bit drill bit and drill them out. Check for continuity after the fact
note : pin 41/42 on the CRYPT KILLER pcb DONT seem to go anywhere on the pcb itself but I didn’t probe super thoroughly. To be safe make sure these pins aren’t connected.
SCSI2SD settings
in the SCSI2SD utility set the device as “hard drive” and set the SCSI ID to 0 / Zero. You do not have to restrict the hard drive size down to 420MB. There seems to be no security check in the pcb in regards to the size of the hard drive.
Pop the SD card into the SCSI2SD, reconnect the ribbon cable and press power! Should boot directly into the game!
here is the specific SCSI2SD I used
I just used a cheap Micro Center brand micro SD card so I assume anything halfway decent will work
I hope this helps you future Person I do not know lolol
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