Hi! I bought a modded PS2 slim that was able to read backups, original games, PAL, NTSC and JP on May/June 2019 (I don't remember exactly when), and for almost the whole summer, it worked well, until the DVD/CD reader wasn't able to read discs for some reason (more precisely, the disc spins for a few moments, then randomly stops). I didn't play PS2 for some weeks, until I discovered the FMCB memory card. "With that FMCB memory card, I will be able to play games from a USB thumb drive"-I thought. I have searched online and I found out that, with an FMCB memory card, my PS2 would load a different menu, that allows me to load Homebrew apps. When I was about to see the price of a FMCB memory card, I noticed that the memory card I have just seen, was identical to mine. I wondered: "If I own an FMCB memory card, then why doesn't it load this different menu I heard about?". So here I am, on Reddit, to ask you guys if my PS2 slim is compatible with FMCB memory card. My PS2 says that the bios is SCPH-70004, however, the power supply says that the bios is SCPH-70100, so, which one should I trust?. I read from the power supply that the number of the PS2 is 8.5V. I'll be grateful to anyone who will try to help me discover if my PS2 is compatible with FMCB, so I can load USB games. By the way, the PS2 slim is PAL version, I guess. (I know that since PS2's USB reader is 1.1, I may experience 50% longer loading times, random crashes, low fps/lag, audio skipping and stuttering, FMV skipping and stuttering; But I want to try anyways, I had lots of good times while playing!).
For slim models, it's mostly guesswork based on a small chassis type indicator in the bottom right corner of the label. However, the only publicly known slim PS2-service manual (for a SCPH-70000 console built around the GH-035 motherboard) mentions another name for the K-chassis: LCG-chassis. Both, "K-chassis" and "LCG-chassis" are used as descriptors throughout this service manual for the same chassis. One possibility is that "LCG" is a specific sub-type of the K-chassis that uses the GH-035 motherboard and is manufactured by Foxconn.
In September 2004, Sony unveiled its third major hardware revision (V12, model number SCPH-70000). Available in November 2004, it is smaller, thinner and quieter than the older versions and includes a built-in internet port (in some markets it also has an integrated modem). Due to its thinner profile, it does not contain the 3.5" expansion bay and therefore does not support the internal hard disk drive. It also lacks an internal power supply, similar to the GameCube, USB ports are only version 1.1, and has a modified MultiTap expansion. The removal of the expansion bay has been criticized as a limitation due to the existence of titles such as Final Fantasy XI, which require the use of the HDD. The official PS2 Linux also requires an expansion bay to function. Currently only the modified MultiTap is sold in stores, meaning that owners of older PS2s must find a used or non-Sony MultiTap in order to have 4 or 8 players during a single game. Third-party connectors can be soldered into the unit giving hard drive support, however IDE connections were completely removed in the V14 revision, thereby eliminating this option.
There are some disputes on the numbering for this PS2 version,Template:Fact since there are actually two sub-versions of the SCPH-70000. One of them includes the old EE and GS chips, and the other contains the newer unified EE+GS chip, but otherwise they are identical. Since the V12 version had already been established for this model, there were some disputes regarding these sub-versions. Two propositions were to name the old model (with separate EE and GS chips) V11.5 and the newer model V12, and to name the old model V12 and the newer model V13. Currently, most people just use V12 for both models, or V12 for the old model and V13 for the newer one.
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