HMP41GF7MMP8C Hynix Semiconductor, HMP41GF7MMP8C Datasheet - Page 15

• Manufacturer Part Number: HMP41GF7MMP8C
• Description: 240pin Fully Buffered Ddr2 Sdram Dimms
• Manufacturer: Hynix Semiconductor

240pin Fully Buffered DDR2 SDRAM DIMMs
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5 Hot-add
The FB-DIMM channel does not provide a mechanism to automatically detect and report the addition of a
new DIMM south of the currently active last DIMM. It is assumed the system will be notified through some
means of the addition of one or more new DIMMs so that specific commands can be sent to the host con-
troller to initialize the newly added DIMM(s) and perform a Hot-add Reset to bring them into the channel
timing domain. It should be noted that the power to the DIMM socket must be removed before a “hot-add”
DIMM is inserted or removed. Applying or removing the power to a DIMM socket is a system platform
function.
6 Hot-remove
In order to accomplish removal of DIMMs the host must perform a Fast Reset sequence targeted at the
lata DIMM that will be retained on the channel. The Fast Reset re-establish the appropriate last DIMM so
that the Southbound Tx outputs of the last DIMM and the Southbound and Northbound outputs of the
DIMMs beyond the last active DIMM are disabled. Once the appropriate outputs are disabled the system
can coordinate the procedure to remove power in preparation for physical removal of the DIMM if needed.
It should be noted that the power to the DIMM socket must be removed before a “hot-add” DIMM is
inserted or removed. Applying or removing the power to a DIMM socket is a system platform function.
7 Hot-replace
Hot replace of DIMM is accomplished through combing th Hot-Remove and Hot-Add process.
Rev 0.1 / May 2008
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