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DDR SYNCH DRAM NON-ECC MEMORY
The Intel G33 Express chipset supports non-ECC DDR2 memory up to PC2-6400 (800-MHz). Memory upgrades are
accomplished by adding single or multiple DIMMs of the same or varied sizes. This chart does not represent all possible
memory configurations.
CAUTION:
You must shut down the computer
and disconnect the power cord
before adding or removing memory
modules. Regardless of the power-on state, voltage is always supplied to the memory modules as long as the computer is
plugged in to an active AC outlet. Adding or removing memory modules while voltage is present may cause irreparable
damage to the memory modules or system board.
HP recommends dual-channel symmetric configurations for maximum performance.
For best performance, add the same amount of total memory to each channel and do not mix speeds. For dual-channel
symmetric performance, the total amount of memory in each channel must be equal. If speeds are mixed, speed will
default to the slowest DIMM.
STANDARD MEMORY
512-MB, 1-GB, 2-GB, or 4-GB DDR2 SYNCH DRAM
OPTIONAL MEMORY UPGRADES
Supports up to 8 GB of DDR2 SYNCH DRAM. Not all memory configurations possible are represented below.
NOTE:
For systems configured with more than 3 GB of memory and a 32-bit operating system, all memory may not be
available due to system resource requirements. Addressing memory above 4 GB requires a 64-bit operating system.
Channel A Channel B
DIMM Size
Slot 1 Slot 2 Slot 3 Slot 4
512-MB 512-MB
1-GB 1-GB
2-GB (dual-channel
symmetric)
1-GB
1-GB
4-GB (dual-channel
symmetric)
1-GB 1-GB 1-GB 1-GB
4-GB (dual-channel
symmetric)
2-GB
2-GB
8-GB (dual-channel
symmetric)
2-GB 2-GB 2-GB 2-GB
QuickSpecs
HP Compaq dx2400 Microtower Business PC
Memory
DA - 12921 Worldwide QuickSpecs — Version 18 — 1.9.2009
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