59Y4814 IBM Chassis, System x3850 X5/x3950 X5

The IBM 59Y4814 is the replacement chassis for the IBM System x3850 X5 and x3950 X5, machine types 7145, 7146, 7143 and 7191. It applies to all models of those types and is serviced as a field-replaceable unit rather than a customer-replaceable one.

The same service parts tables carry the parts that mount inside this chassis: top cover 59Y4815, 1975 W power supply 49Y7760, hard drive backplane 43V7070, operator information panel 46M0059 and the I/O board shuttles 88Y5422 for types 7143 and 7191 and 69Y1851 for types 7145 and 7146.

The x3850 X5 of machine type 7143 is a 4U rack server. Most models ship with two processors and take up to four Intel Xeon E7-8800 or E7-4800 processors with up to 10 cores and 30 MB of L3 cache. It has eight memory cards of eight DIMM sockets each, 64 sockets in all, for up to 2.0 TB with 32 GB DIMMs; the MAX5 memory expansion unit adds 32 sockets and 1U of height.

Storage is eight 2.5-inch hot-swap SAS bays or sixteen 1.8-inch solid-state drives. There are eight expansion slots, seven PCIe 2.0 slots for adapters and one for the RAID card, and power comes from up to two hot-swap redundant 1975 W supplies. Two servers can be joined with two MAX5 units into a 10U complex through the four rear scalability ports.