Question about EliteGroup P4M800-M7 Motherboard
I have a P4M800-M7 Revision 3.1 MB
when I add 2GB memory (two 1GB DDR 400 DIMMs)
P4 3.1 GHz, running RHEL Linux 4.1.1-52 it acts like it was single stepping down in CPU cycle speed. It works fine with 1.5GB. Something about the 2GB memory that makes it slow step.
All memory modules check out on alternate
machines. When booting into a XP runtime environment it runs with no slowness noted but XP was not really loaded down.
One immediate question is there any known MB problems accessing
2GBs of primary memory.
I have never had a problem with Mobo's supporting 2 GB of memory.
As per the website your mobo supports 2 GB memory.
Posted on Dec 25, 2007
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Posted on Jan 02, 2017
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You can install 128 MB, 256 MB, 512 MB, and 1GB DDR SDRAM DIMMs into the DIMM sockets using the memory configurations in this section.
• Install only identical (the same type and size) DDR DIMM pairs
using the recommended configurations.
• Make sure that the memory frequency matches the CPU FSB
(Front Side Bus). Refer to the Memory frequency/CPU FSB
synchronization table on the next page.
• This motherboard does not support double-sided 16-bit DDR DIMMs.
• Do not create a three-DIMM configuration in dual-channel mode. The
third DIMM is ignored in the dual-channel operation.
Recommended memory configurations
Memory frequency/CPU FSB synchronization
* Use only identical DDR DIMM pairs.
Mode DIMM1 DIMM2 DIMM3 DIMM4
Single-channel (1) Installed - - -
(2) - Installed - -
(3) - - Installed -
(4) - - - Installed
Dual-channel* (1) Installed - Installed -
(2) - Installed - Installed
(3) Installed Installed Installed Installed
CPU FSB DDR DIMM Type Memory Frequency
800 MHz PC3200 400 MHz
533 MHz PC3200/PC2700 400/333 MHz
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