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Hardware Revisions
Every PSX hardware revision has two releases and is specified with a 4 digit product code: DESR-****. The second digit (0/1/5/7) specifies the hardware revision. First digit (5/7) defines hard drive size and some minor features. The 7*00 is constructed with a glossy case and has blue lettering.
Hardware Changes
Collected from marketing materials and other online resources. Needs to be confirmed.
5000/7000: First revision.5100/7100: Unknown changes, Japanese Wikipedia article suggests it’s just bundled hardware changes.5500/7500: High quality over the air signal filtering removed from*500models, firewire added to 7500. psBB support removed. Update disk allows software encoding DVR videos for PSP (slow).5700/7700: Same as*500but additional ASIC for hardware encoding PSP video.
All PSX revisions use the combo EE+GS main chip, and the original MIPS IOP, not a DECKARD.
*500/*700 systems refuse to properly boot up without the DVR partition. Cannot use sony ps2 branded HDD’s to restore these models
Internal Naming
Within PSX related binaries, the *000/*100 are named PSX1 and the *500/*700 are named PSX2.
Board Layout
DESR-5500
