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What are you patching? The check for the flash chip type or the necessity of the additional EEPROM? Would be nice to have it for the XRack ROM as well.

It mainly depends on the controller on the drive I think. Some had to be forced, some was compatible with the older protocol by default.

Update: The sleep/wake issue may have been caused by an unrelated factor. I disconnected all disks except for the SSD containing 10.2.8 and it goes to sleep and wakes up properly. Unlike an older HDD, it seems this SSD is not happy with my SIL3112, so it seems the VT6421A's compatibility with...

I was able to source a few PC cards that had the pads for the EEPROM. I soldered it on and it's working properly. I've tested 10.2.8 with a Kingston A400 SSD, and it seems to be working fine. To make it work, I had to install it onto a PATA disk, upgrade to 10.2.8, then take an image and restore...

I was wondering why the EECS pin was connected to GND, so I disconnected the EEPROM related pins of the VT6421A from the board and wired up the AT93C46A directly, no difference. I tried measuring the voltage between CS and GND when I powered on the Mac, and it didn't go up. My understanding is...

I've modded two different cards: - Conceptronic CSATACOMBO 6421 V1.3 - Delock 70146 I used a Winbond W49V002AP for the flash chip and an Atmel AT93C46A EEPROM flashed with the binary finkmac uploaded. I tried both the Mathey and the XRack firmwares on the flash chip. I tried them in my G4 MDD...

Strange. Although I would expect the sleep/wake issue to manifest if the OS was booted from a disk handled by this controller. Does OpenFirmware see the card?

Ah I see it now, interesting. I have a few cards on the way to experiment with. I'd like to benchmark and compare the VT6421A with the SIL3112 cards. Did you encounter any sleep related issues, or is the AMS1117 3.3V LDO only problematic with the SIL3112?

Anyone has an idea what the second, adjustable LDO voltage regulator is for?