CUSTOMER SUPPORT
Dataram's Technical Support Program goes beyond the lifetime warranty,
routine calls and questions. As memory specialists since 1967, we want
to provide the most comprehensive level of service and support in the
industry.
Our Customer Support representatives can answer your questions and
give you information on system/memory configurations, upgrade options,
product specifications, compatibility and other technical topics or issues.
In Europe:
+45 70 212 217 (Phone)
+45 70 212 211 (FAX)
eusupport@dataram.com (E-mail)
In the U.S.A. and all other countries:
800-599-0071 (Toll Free)
609-799-0071 (Phone)
609-936-1369 (FAX)
usasupport@dataram.com (E-mail)
If a Dataram memory board does not function properly we will issue a
Return Material Authorization number (RMA#) for the return of the
defective module(s) and express ship a repair or replacement to you at
no charge.
P/N 06700 A
DRH8640 INSTALLATION INSTRUCTIONS
FOR HP INTEGRITY RX7640 AND RX8640
SYSTEM AND MEMORY OVERVIEW
Note: Refer to your system owner’s manual for detailed instructions and be
sure to follow all static and safety precautions.
• Memory is installed on one or more HP Cell Boards.
• Each Cell Board contains 16 DIMM slots.
• The HP Integrity rx7640 supports one or two Cell Boards.
• The HP Integrity rx8640 supports one, two or four Cell Boards.
P/N 06700 A
CUSTOMER SUPPORT
Dataram's Technical Support Program goes beyond the lifetime warranty,
routine calls and questions. As memory specialists since 1967, we want
to provide the most comprehensive level of service and support in the
industry.
Our Customer Support representatives can answer your questions and
give you information on system/memory configurations, upgrade options,
product specifications, compatibility and other technical topics or issues.
In Europe:
+45 70 212 217 (Phone)
+45 70 212 211 (FAX)
eusupport@dataram.com (E-mail)
In the U.S.A. and all other countries:
800-599-0071 (Toll Free)
609-799-0071 (Phone)
609-936-1369 (FAX)
usasupport@dataram.com (E-mail)
If a Dataram memory board does not function properly we will issue a
Return Material Authorization number (RMA#) for the return of the
defective module(s) and express ship a repair or replacement to you at
no charge.
P/N 06700 A
DRH8640 INSTALLATION INSTRUCTIONS
FOR HP INTEGRITY RX7640 AND RX8640
SYSTEM AND MEMORY OVERVIEW
Note: Refer to your system owner’s manual for detailed instructions and be
sure to follow all static and safety precautions.
• Memory is installed on one or more HP Cell Boards.
• Each Cell Board contains 16 DIMM slots.
• The HP Integrity rx7640 supports one or two Cell Boards.
• The HP Integrity rx8640 supports one, two or four Cell Boards.
P/N 06700 A
MEMORY INSTALLATION
g
g
Note: Refer to your system owner’s manual for detailed instructions.
Caution: System parts are sensitive to electrostatic discharge and can be
1. DIMMs must be installed as paired sets into specific slots on the Cell
Board. Each pair is called an echelon, and DIMMs within an echelon
must be of the same capacity.
2. DIMM slots are arranged and numbered by echelon. For example, DIMM
slots 0A and 0B comprise echelon 0, DIMM slots 1A and 1B comprise
echelon 1, and so forth. See Table 1 and Figure 1 for further details on
how DIMMs are installed and the slot layout on the Cell Board. The
minimum memory capacity is 2GB per Cell Board, configured as 2 x 1GB
DIMMs and installed in echelon 0.
3. DIMMs of different capacities are supported by the largest capacity
DIMMs must be installed first across a Cell, followed by progressively
smaller capacities.
4. For best performance, a Cell should be configured with a multiple of 8
DIMMs (4 pairs) and the memory loaded equally across Cell boards.
damaged by the static charge you may carry. You should wear a
rounded wrist strap.
MEMORY INSTALLATION
Note: Not all valid memory configurations are shown.
MEMORY INSTALLATION MEMORY INSTALLATION
Note: Refer to your system owner’s manual for detailed instructions.
Caution: System parts are sensitive to electrostatic discharge and can be
1. DIMMs must be installed as paired sets into specific slots on the Cell
Board. Each pair is called an echelon, and DIMMs within an echelon
must be of the same capacity.
2. DIMM slots are arranged and numbered by echelon. For example, DIMM
slots 0A and 0B comprise echelon 0, DIMM slots 1A and 1B comprise
echelon 1, and so forth. See Table 1 and Figure 1 for further details on
how DIMMs are installed and the slot layout on the Cell Board. The
minimum memory capacity is 2GB per Cell Board, configured as 2 x 1GB
DIMMs and installed in echelon 0.
3. DIMMs of different capacities are supported by the largest capacity
DIMMs must be installed first across a Cell, followed by progressively
smaller capacities.
4. For best performance, a Cell should be configured with a multiple of 8
DIMMs (4 pairs) and the memory loaded equally across Cell boards.
damaged by the static charge you may carry. You should wear a
rounded wrist strap.
Note: Not all valid memory configurations are shown.
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