HP Compaq dx2400 Quickspecs page 17

QuickSpecs
Memory
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.
DIMM Size
512-MB
1-GB
2-GB (dual-channel
symmetric)
4-GB (dual-channel
symmetric)
4-GB (dual-channel
symmetric)
8-GB (dual-channel
symmetric)
Channel A
Slot 1
512-MB
1-GB
1-GB
1-GB
2-GB
2-GB
DA - 12921 North America — Version 25 — July 28, 2009
HP Compaq dx2400 Microtower Business PC
Slot 2
1-GB
2-GB
Channel B
Slot 3
1-GB
1-GB
2-GB
2-GB
Slot 4
1-GB
2-GB
Page 17