Good Stretch of Cooler Weekend Weather here on the East Coast. I Learned something New about being 2 PS3 PHAT COK-001 Motherboards. The B Model has No Cartridge Slot Connection as opposed to the A Model.

🧩 COK-001-22 → Most common in CECHB models

From teardown and repair data:

• COK-001-22 is often found in CECHB units.
• It does not have the cartridge slot (card reader) connector populated.
• Even though the board layout has the footprint for a card reader, the hardware is not installed (missing components and connector).

🔍 Other Revisions:

RevisionFound InCard Reader Present?NotesCOK-001-22CECHB (20GB)❌ NoCommon "B" boardCOK-001-23CECHA (60GB)✅ YesUsed in launch models with card readerCOK-001-31/32Late CECHA✅ YesLater 60GB units, possibly more refined

🧠 Summary:

If your PS3 "B" (CECHB) has no cartridge/card reader slot, it most likely uses the:

🔹 COK-001-22 motherboard revision

Would you like help identifying the exact revision from a photo of your board? I can help you locate the silkscreen and verify.

LetterModelYearPS2 BC TypeNotable ChangesACECHA2006EE + GSFull hardware BCBCECHB2006EE + GSNo Wi-Fi/Card ReaderCCECHC2007GS onlyPAL version onlyECECHE2007GS onlyU.S. 80GB, partial BCGCECHG2007NoneNo PS2 support at all