Qpi); Figure 14. Installing/Removing Heatsink; Figure 15. Intel Qpi Link - Intel S5500WB12V Specification

Functional Architecture
3.3.3.3 Removing the Processor Heatsink
To remove the heatsink, follow these steps:
1. Loosen the four captive screws on the heatsink corners in a diagonal manner according
to the numbers shown in Figure 1 as follows:
a) Starting with the screw at location 1, loosen it by giving it two rotations in the
anticlockwise direction and stop. (IMPORTANT: Do not fully loosen.)
b) Proceed to the screw at location 2 and loosen it by giving it two rotations and
stop.
c) Loosen screws at locations 3 and 4 by giving each screw two rotations and then
stop.
d) Repeat steps 1a through 1c by giving each screw two rotations each time until all
screws are loosened.
2. Lift the heatsink from the board.
3.3.4 Intel QuickPath Interconnect (Intel
®
®
Intel QPI is a cache-coherent, link-based interconnect specification for processor, chipset, and
I/O bridge components. You can use it in a wide variety of desktop, mobile, and server
platforms spanning IA-32 and Intel
high-performance I/O transfer between I/O nodes. It allows connection to standard I/O buses
such as PCI Express*, PCI-X*, PCI (including peer-to-peer communication support), AGP
(Accelerated Graphics Port), and so forth, through the appropriate bridges.
®
Each Intel QPI link consists of 20 pairs of uni-directional differential lanes for the transmitter
and receiver plus a differential forwarded clock. A full-width Intel
signals (20 differential pairs in each direction) plus a forwarded differential clock in each
®
direction. Each Intel 5500 series and 5600 series processor supports two Intel
going to the second processor and one going to the Intel
20

Figure 14. Installing/Removing Heatsink

® ®
Itanium architectures. Intel
Figure 15. Intel
Intel order number E53971-008
Intel® Server Board S5500WB TPS

QPI)

®
®
QPI also provides support for
®
QPI link pair consists of 84
®
5500 chipset IOH.
®
QPI Link
®
QPI links, one
Revision 1.9