Sun Microsystems SPARCengine Ultra AXi, Техническое руководство, Страница: 35 / 174

Chapter 2 Specification Summary 2-3
Sockets for memory 8 sockets, 2 min. populated with DIMMs of identical
capacity. Pairs of different size auto configured, accepted
DIMM modules DRAM, EDO, Inputs Buffered except RAS,
3.3V, 60nS, 72bits, 168 Pins
10-bit column address up to 128 MB
11-bit column address up to 128 MB
Caution –
Use 60 ns DIMMs only on the Ultra AXi motherboard.
Refresh Rate CAS before RAS, 2K rows refreshed in 32 ms, (15.5
µ
s)
ECC features Single bit error correction
Double bit error detection
Height Enclosure restriction may apply
Note –
Some standard ATX chassis have height restrictions
Width The connectors are 0.297 inches (7.544 mm.) wide.
A module thicker than this will partially block the
adjacent connector
Other References See A.3.2 on page A-9, TABLE C-4 on page C-18 and
TABLE C-5 on page C-20
2.1.3 UPA64S Interface (Optional FFB)
SunExpress Part Number X3663A
Interface connector UPA64S, J0601, see A.3.5 on page A-15
Functional specification Refer to Data sheet PN 270-4172-02
Monitor supported Sun Monitor, 13W3 connector
Note –
The optional FFB card will block access to one PCI slot.