Intel® Server System Server System "Emerald Ridge ... - CTL

錯 誤 ! 尚 未 定 義 樣 式 。錯 誤 ! 尚 未 定 義 樣 式 。 EPS3.24 HeartBeat LEDEmerald Ridge platform has a heartbeat LED located on top of IO riser (next to IO Riser powerLED) which indicates BMC firmware health, it can be seen only if chassis is open. On normaloperating condition Heartbeat LED is green blinking with 1 sec of blink rate. In case of firmwarecrash or unavailability LED behavior will be not be blinking (either on or off)1. Heartbeat LED will be off when system is booted using force update mode jumperset( uboot mode)2. Enter firmware transfer command will have no impact to LED state3. Exit firmware transfer mode (BMC reset) will cause LED to stop blinking till firmware isup and running.4. No other sensors any fault or system status would cause any impact to Heartbeat LED.3.25 CSS LEDEmerald Ridge Platform has CSS LED on back of IO Riser, which indicates Memory and PowerSupply status, CSS LED supports only two states OFF and SOLID YELLOW. On normalcondition CSS LED will be OFF, CSS LED will be ON (SOLID YELLOW) when Memory ORpower supply errors are detected in the on, sleep, or standby state.a. Memory status.- Memory errors are detected by BIOS, When BIOS detects anymemory errors in POST, it notifies to BMC using “Set Fault Indication” command tolight the corresponding DIMM LED, in addition to light DIMM fault LED, BMC will alsolight CSS LED so that user doesn’t need to open the chassis and observe anymemory errors. The CSS LED will stay in SOLID YELLOW state until BIOS tellsBMC all DIMMs OK in future Power ON.b. Power Supply status- PS fail will happen in all power state. When the PS failoccurred, PS FW will assert the PS Alert (SMBAlert) signal. And BMC scans PS Alertsignal for any detectable errors and lights the CSS LED. Below are the assertionconditions for the alert signal.IOUT over current warningIOUT over current faultPOUT over power warningPOUT over power faultIIN over current warningPIN over power warningVIN under voltage warningVIN under voltage faultPower good de-assertsPower supply failures (includes over temperature and fan failure)42Intel ConfidentialRevision 1.1