DISTRIBUTED PROCESSING TECHNOLOGY PM3755U2B Card Type Hard drive controller Chip Set Unidentified Maximum Onboard Memory 256MB DRAM I/O Options SCSI connectors (2), expansion module connectors (2) Hard Drives supported Up to 15 Ultra2/LVD Wide SCSI devices Up to 45 Wide SCSI-2 or Ultra-wide SCSI devices with expansion board upgrades Floppy drives supported None Data Bus 64-bit PCI Card Size Full-length [Image] CONNECTIONS Function Label Function Label 32-bit header connector to J7 68-pin SCSI connector J11 expansion module Ch. 0 - external 64-bit header connector to J8 4-pin connector - drive P6 expansion module active LED 68-pin SCSI connector Ch. J10 0 - internal Note: Header connector to BB4050 battery module is unidentified USER CONFIGURABLE SETTINGS Function Label Position NVRAM reset to default settings P4 Pins 1 & 2 closed NVRAM setup parameters retained P4 Pins 3 & 4 closed Load enabled P9 Pins 1 & 2 closed Run enabled P9 Pins 3 & 4 closed DIMM MEMORY CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 16MB (1)2MB x 64 None None None 32MB (1)2MB x 64 (1)2MB x 64 None None 48MB (1)2MB x 64 (1)2MB x 64 (1)2MB x 64 None 64MB (1)2MB x 64 (1)2MB x 64 (1)2MB x 64 (1)2MB x 64 64MB (1)8MB x 64 None None None 80MB (1)8MB x 64 (1)2MB x 64 None None 144MB (1)8MB x 64 (1)8MB x 64 (1)2MB x 64 None 160MB (1)8MB x 64 (1)8MB x 64 (1)2MB x 64 None 128MB (1)8MB x 64 (1)8MB x 64 None None 192MB (1)8MB x 64 (1)8MB x 64 (1)8MB x 64 None 208MB (1)8MB x 64 (1)8MB x 64 (1)8MB x 64 (1)2MB x 64 256MB (1)8MB x 64 (1)8MB x 64 (1)8MB x 64 (1)8MB x 64 DIAGNOSTIC LED(S) LED Color Status Condition LED1 Unidentified On Controller is ready; interrupts are enabled LED1 Unidentified Off Controller is inactive LED1 Unidentified Blinking Controller is active LED2 Unidentified On Non-maskable interrupt (NMI) detected LED2 Unidentified Off NMI not detected LED3 Unidentified On Controller in idle loop mode LED3 Unidentified Off Controller not in idle loop mode LED4 Unidentified On Interrupt is being processed LED4 Unidentified Off Interrupt is not being processed LED5 Unidentified Off Not used LED6 Unidentified On Cache controller is using DMA to perform a data transfer LED6 Unidentified Off Cache controller is not using DMA to perform a data transfer LED7 Unidentified On Parity is being generated LED7 Unidentified Off Parity is not being generated LED8 Unidentified On Command detected on SCSI LED8 Unidentified Off Command not detected on SCSI IRQ Unidentified On Interrupt has been activated on host PCI bus IRQ Unidentified Off Interrupt has not been activated on host PCI bus ECCEN Green On Cache is ECC protected ECCEN Green Off Cache is not ECC protected ECCER Red On Error detected. Cache failure information reported ECCER Red Off Error not detected [Image] SX4055U2-1 EXPANSION MODULE CONNECTIONS Function Label Function Label 68-pin SCSI connector J2 64-bit auxiliary header P3 Ch. 1- internal connector to Controller card 68-pin SCSI connector J3 Header connector to P5 Ch. 1 - external Controller card Note: SX4055U2-1 expansion module supports an additional 15 Ultra2/LVD Wide SCSI devices [Image] SX4055U2-2 CONNECTIONS Function Label Function Label 68-pin SCSI connector J1 68-pin SCSI connector J4 Ch. 2 - external Ch. 2 - internal 68-pin SCSI connector J2 64-bit auxiliary header P3 Ch. 1- internal connector to Controller card 68-pin SCSI connector J3 Header connector to P5 Ch. 1 - external Controller card Note: SX405U2-2 expansion module supports an additional 30 Ultra2/LVD Wide SCSI devices [Image] SX4055F FC-AL CONNECTIONS Function Label Function Label HSSDC FC-AL connector P2 Header connector to P5 Ch. 1 - external Controller card 64-bit auxiliary header P3 connector to Controller card Note: Fibre channel provided by expansion module supports up to 126 additional devices [Image] BB4050 BATTERY BACKUP MODULE CONNECTIONS Function Label Function Label Battery cable connector J1 Header connector to P12 Controller card Note: BB4050 battery backup module may only be installed on a PM3755U2B Controller DIAGNOSTIC LED(S) LED Color Status Condition LED1 Unidentified On Trickle charge activity detected LED1 Unidentified Off Trickle charge activity not detected LED2 Unidentified On Charging/recharging mode initiated LED2 Unidentified Off Battery module not charging