I just bought a referb OCZ RevoDrive 3 x2 240GB from NewEgg for cheap. Looking at the board, it looks like I can easily add in flash chips to the board. I haven’t got the board yet, but looking on the internet, it looks like the Flash chips are Mircon MT29F64G08CBAAA WPA chips, which are 48 pin TSOP MLC 64GBit chips. I should get the board tomorrow.
I am an experience electrical engineer, so it shouldn’t be a problem soldering some extra chips onto the boards. But I am wondering if the controller will see the extra memory. Since the Micron chips cost $10 to $20, it would be a nice upgrade and a lot cheaper than buying the 480GB versions.
Looking at the layout, they flash chips are in a 4 x 4 grid, making 16 of them, and then 32 of them because of the dual sided. Then the x2 has 2 boards, so 32 * 2 is 64 chips. So the 480GB version, which is really 512GB is 64 * 64Gbit, which is 4096GBit, then converted to 512GB.
The 240GB is 32 * 64GBit chips. So I will have to solder on 32 more 64GBit MLC flash chips to the two boards. I probably can get the chips at $14, so total would be $448. I got the card for $300, so total expense will be ~$748. Not too bad, since a brand new 480GB card costs $970 from TigerDirect, saving $222.
Has anyone tried this? I am assuming it will work, since the card BIOS would boot up and see the memory. But I might have to upgrade the BIOS. It might be a good hack, if I can get the MLC Flash chips cheap.
I probably couldn’t upgrade to the 960GB version. I am assuming the 960GB uses 128GBit chips, and has 64 of them. I could replace all of the chips, but it might not even work. I will just stick to looking at upgrading from 240GB to 280GB.