IBM 4840-563 System Reference - Page 21
Indicators, User Control, Tower Logic, Processor, 8245GV Memory Controller Hub, (GMCH)
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Indicators Function Power Color Green Location Tower Front HDD Ethernet Yellow Green Tower Front Rear (Ethernet connector) State Off -System Off Blinking - Standby/during POST On - Operational Off - NO activity Blinking - HDD activity Left LED States - Off - 10 Mb mode - On - 100 Mbit Right LED States - Off - No link - On - Good Link User Control Function Power Color White Brightness Blue Actuation Momentary Momentary Chapter 5 Tower Logic Location Behind access door on tower Tablet Operation Toggles state between OFF and ON 2 buttons, bright up/down Processor Intel mPGA478 Pentium 4 Socket 400/533MHz PSB (100/133 MHz external bus clock) 1.8GHz - 2.8GHz Processor speeds Processor support is limited to Pentium 4 2.4 GHz by thermal and power supply considerations. 8245GV Memory Controller Hub, (GMCH) System Memory Controller - PC2100 (DDR266) (PC1600 (DDR200) not supported) - Non-ECC, unbuffered DIMMs - 2GB total memory; 2 DIMM sockets - No double sided, x16 DDR sdram supported - Supported DIMM sizes: 128MB, 256MB, 512 MB, 1 GB Integrated Extreme Graphics 3D Controller - 256 bit engine - 64 MB maximum UMA video memory - Synchronous LCD/CRT support - LVDS Panel support Video Support Implementation Notes: SurePOS 500 Model XX3 Technical Reference, v 1.3 81 Page 21 of