HP Xw8400 HP xw8400 Workstation - Service and Technical Reference Guide - Page 144
SATA Emulation, Combined IDE Controller, Storage>Storage Options, Separate IDE Controller
UPC - 883585271085
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Table 5-18 POST error messages (continued) Screen Message Probable Cause Recommended Action 1794-Inaccessible devices attached to SATA 1 and/or SATA 3. Devices attached to the SATA 1 (blue) 1. and SATA 3 (black) connectors are inaccessible while SATA Emulation is 2. set to Combined IDE Controller in Setup. Run Computer Setup (F10 Setup). Select Storage>Storage Options, and set the SATA controller to Separate IDE Controller. 1800-Temperature Alert. Internal temperature exceeds specification. CAUTION: Disconnect AC power from the workstation before reseating or replacing components because there is power to the system board even when the workstation is powered down. 1. Check that workstation air vents are not blocked and that the cooling fan is running. 2. Verify processor speed selection. 3. Replace the processor. 4. Replace the system board. 1801-Microcode Update Error. Missing or Invalid Processor Microcode Update. Contact HP for a new Microcode Update to support the new Processor Stepping. Upgrade BIOS to proper version. 1802-Processor Not Supported. The system board does not support the processor. CAUTION: Disconnect AC power from the workstation before reseating or replacing components because there is power to the system board even when the workstation is powered down. Replace the processor with a compatible one. Invalid Electronic Serial Number. Electronic serial number has become 1. Run Computer Setup. If Setup already has data in corrupted. the field or will not allow the serial number to be entered, download SP5572.EXE (SNZERO.EXE) from http://www.hp.com and run it on your workstation. 2. Run Computer Setup. Try to enter the serial number under Security>System ID, and save the changes. ECC Multiple Bit Error Detected Chipset has detected more than one in Memory Module. bad bit in a 64-bit quadword of the memory array. CAUTION: Disconnect AC power from the workstation before reseating or replacing components because there is power to the system board even when the workstation is powered down. Replace the memory module. Parity Check 2. Parity RAM failure. Run Computer Setup and Diagnostic utilities. 134 Chapter 5 System diagnostics and troubleshooting ENWW