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Table 1. Features and specifications
Microprocessor (not standard on
System x3950 E models):
®
™
v Intel
Xeon
MP
v 1 MB (minimum) Level-2 cache
v 4 MB or 8 MB Level-3 cache
v 667 MHz front-side bus (FSB)
v Support for up to four microprocessors
Note: Use the Configuration/Setup Utility
program to determine the type and speed
of the microprocessors.
Memory (not standard on System x3950
E models):
v Minimum: 2 GB depending on server
model, expandable to 64 GB
v Type: 333 MHz, registered, ECC,
PC2-3200 double data rate (DDR) II,
SDRAM
v Sizes: 1 GB, 2 GB, or 4 GB in pairs
v Connectors: Two-way interleaved, four
dual inline memory module (DIMM)
connectors per memory card
v Maximum: Four memory cards, each
card containing two pairs of PC2-3200
DDRII DIMMs
Drives:
v Slim DVD-ROM: IDE
v Serial Attached SCSI (SAS) hard disk
drives
Expansion bays:
v Six SAS, 2.5-inch bays
v One 12.7-mm removable-media drive
bay (DVD drive installed, standard on
some models only)
Expansion slots:
Six PCI-X 2.0 hot-plug 266 MHz/64-bit
slots
Upgradeable microcode:
System BIOS, diagnostics, service
processor, BMC, and SAS microcode
4
IBM System x3950 Type 8878 and System x3950 E Type 8879: User's Guide
Power supply:
v Standard: Two dual-rated power
supplies
– 1300 watts at 220 V ac input
– 650 watts at 110 V ac input
v Hot-swappable at 220 V ac only
Size:
v 3U
v Height: 128.35 mm (5.05 in.)
v Depth: 715 mm (28.15 in.)
v Width: 440 mm (17.32 in.)
v Weight: approximately 38.5 kg (85 lb)
when fully configured or 31.75 kg (70
lb) minimum
Integrated functions:
v Baseboard management controller
v IBM EXA-32 Chipset with integrated
memory and I/O controller
v Service processor support for Remote
Supervisor Adapter II SlimLine
v Light path diagnostics
v Three Universal Serial Bus (USB) ports
(2.0)
– Two on rear of server
– One on front of server
v Broadcom 5704C dual 10/100/1000
Gigabit Ethernet controllers
v ATI 7000-M video
– 16 MB video memory
– SVGA compatible
v Mouse connector
v Keyboard connector
v Serial connector
v SMP Expansion Ports
Acoustical noise emissions:
v Sound power, idle: 6.6 bel declared
v Sound power, operating: 6.6 bel
declared
Environment:
v Air temperature:
– Server on:
- 10° to 35°C (50° to 95°F); altitude:
0 to 914 m (3000 ft). If the server
has a dual-core microprocessor, at
maximum power reduce the 35°C
by 1°C per 300 m above sea level,
or the microprocessor might throttle
to remain within the internal thermal
specifications.
- 10 to 32°C (50° to 90°F); altitude:
914 m to 2133 m (7000 ft).
– Server off: 10° to 43°C (50.0° to
109.4°F); maximum altitude: 2133 m
(6998.0 ft)
v Humidity:
– Server on: 8% to 80%
– Server off: 8% to 80%
Heat output:
Approximate heat output in British thermal
units (Btu) per hour:
v Minimum configuration: 1364 Btu (400
watts) per hour
v Maximum configuration: 5780 Btu (1700
watts) per hour
Electrical input:
v Sine-wave input (50-60 Hz) required
v Input voltage low range:
– Minimum: 100 V ac
– Maximum: 127 V ac
v Input voltage high range:
– Minimum: 200 V ac
– Maximum: 240 V ac
v Approximate input kilovolt-amperes (kVA):
– Minimum: 0.40 kVA
– Maximum: 1.6 kVA
Scalability support:
Maximum configuration:
v Eight nodes
v 32-way operation
v 128 DIMMs
v 48 SAS hard disk drives
v 48 PCI-X adapters
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