This is a pic of various hard drives and adapters I've tried with my cube over the past month or so. Here's a writeup I did for another site:
I picked up G4 cube about a month ago with no hard drive. Here’s my saga for getting an SSD to fit in the limited space with the original cable and DVD-ROM. My DVD-ROM came set as SLAVE which is a switch under the little daughter card attached to the drive. It should not matter but I’m running the cube on a modern 24v power supply. It looks like a stock cube - no PowerPC upgrade, etc.)
- First newbie purchase. ChenYang 3.5 IDE to 2.5 SATA. Various clones of this are for sale on Amazon, ebay and Aliexpress. Oops, the connectors are on the top edge of the adapter so don’t fit with the cables inside the cube. The original 3.5 IDE drive has the connectors at the bottom and the cube cables don’t have enough wiggle room to fit.
- RAIDON Firewire enclosure for SATA drives. I bought this off eBay to put a Tiger install on an old 500 GB SATA drive. This enclosure does work but splits the 500 GB into two partitions right away. One 250 GB unlocked and one 250 GB that unlocks with the keypad. I haven’t tried the encryption at all. Comes with a USB and FireWire 400 cable but not a 800 cable so would not work with my 2008 Mac Pro via Firewire. I did get the Tiger installer ISO copied to this drive successfully and have used it to install Tiger multiple times.
- ORICO 128 GB SATA drive. Bought on Amazon. This installed Tiger fine dangling outside the cube because #1 adapter does not fit but booting this drive with Tiger just freezes during the boot up process. Disk Utility on my Mac Pro says the drive is fine.I have not investigated this further. Maybe just a bad drive but Tiger installed fine.
- GOD why did I buy this Godshark 3.5 to 2.5 inch IDE adapter. The power connector is UPSIDE DOWN. Yes, this information is online and I should have researched it more. But it was $7. I have been tempted to desolder the connector and solder in a wired one in the proper position but have not tried it yet. No visible master/slave switch.
- What is better than one Godshark adapter? TWO! This is a 2.5 IDE adapter to SATA. It has a master/slave “JP1” spot with nothing soldered on. I did not try adding a jumper
- SABRENT 2.5 to 3.5 IDE connector. For use with #5
- 128 GB MSATA card bought off eBay. These seem to work fine
- Axcico Mini PCIE MSATA SSD to 2.5” SATA adapter. For #7 plus the various adapters
- 2.5 IDE to MSATA enclosure. Aliexpress purchase. I should be able to use this with #6. Has jumpers for master/slave
- Skinny SATA to 3.5 IDE adapter. Bought on eBay but available everywhere. This looks promising because it’s not too tall and also has slave/master jumpers
General notes about what I tried and what worked or not:
(1) Wasn’t going to fit in the case so really haven’t investigated this one.
(3) The connector is upside down! WTF! I have not investigated it more.
(5+6+7+8) This works and appears as master but the DVD-ROM does not show up
(6+7+9) This works and master/slave jumper does change the device number in “About This Mac” and “More Info...” and the ATA section. But oops, the DVD-ROM does not work in any mode.
(7+8+10). This adapter ports are just a tiny bit too tall but it actually works and fits in the cube. Master/slave jumper works and DVD-ROM works as long as it is a slave device. Switching the devices master/slave settings cause the cube not to boot at all.
Full disclaimer: There is a lot of conflicting information about what works and what does not with a cube and adding a SSD and keeping the DVD-ROM functional. Some posts say the DVD-ROM is normally in master mode. Mine was in slave and only really works as a slave device so far.
So 7+8+10 are working great in my cube. DVD-ROM (as SLAVE) shows up unlike some of the other configs. No wires were moved/modified internally to fit the parts plus a 3D printed sled I made.
I got a 2nd cube today (dead VRM I believe) and its DVD-ROM is also set as slave not as master fwiw.