HP LH4r HP Netserver Service Handbook, Volume 2 - Mid - Page 131
System Board Jumper Locations, System Board Jumper Settings
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System Board Jumper Locations E0722 E0721 3 2 E0720 1 E0392 E0391 E0390 E0292 E0291 E0290 E0190 System Board Jumper Settings Jumper E0190 E0290 E0291 E0292 E0390 E0391 E0392 Function Flash BOOT. When the jumper is on pins 1 and 2, the Flash ROM can be reflashed. If the Flash ROM is corrupt, even reading from the flexible disk drive does not work, move the jumper to 2-3 to allow access to protected code on the Flash EPROM (boot code protected sector) that should allow the Flash from the BIOS. VGA. When the jumper is on pins 2 and 3, the built-in video is disabled. Disable the built-in video only if a separate video board is installed in the server. Floppy R/W. When the jumper is on pins 1 and 2, it disables writing to flexible disk drives. NVRAM Clr. When the jumper is on pins 2 and 3, it erases the current system configuration from NVRAM. The jumper must be on pins 1 and 2 to run the EISA Configuration Utility to reconfigure the server. Password. When the jumper is on pins 1 and 2, it erases the current power-on password from CMOS. The jumper must be on pins 2 and 3 to use the power-on password. SIMM0 Std. When the jumper is on pins 1 and 2, memory bank 0 is compatible with 4 MB and 8 MB SIMMs. When the jumper is on pins 2 and 3, memory bank 0 is compatible with 16 MB and 32 MB SIMMs. SIMM1 Std. When the jumper is on pins 1 and 2, memory bank 1 is compatible with 4 MB and 8 MB SIMMs. When the jumper is on pins 2 and 3, memory bank 1 is compatible with 16 MB and 32 MB SIMMs. Default 1 to 2 1 to 2 2 to 3 1 to 2 2 to 3 1 to 2 1 to 2 123