Appendix B: The Explanation For Overspecification And Overclocking On Intel; 845Pe Chipset - MSI 845PE Neo Series Manual

Appendix B:
The explanation for overspecification and
overclocking on Intel
The default specification of Intel
FSB 400/533MHz CPU and DDR 266/333 DRAM technology. However, we
have spent engineering efforts to allow the overspecification and overclocking
of 845PE Max under certain conditions. Here is the information which could
help you to achieve overclocking more easily.
Should you decide to overspec the mainboard, the following conditions
shall be satisfied in order to make overspecification possible.
1. Memory Speed/CPU FSB Overclocking Support Matrix
Memory
CPU FSB
400MHz
533MHz
800MHz *
*: CPU FSB 800MHz/DDR400 is not the default specification of this mainboard.
If you decided to use Intel's FSB 800MHz CPU to overclock on this
mainboard, DDR400 DRAM modules should be used, and have them
populated in the suggested configuration.
Because Intel's CPU & chipset only support synchronous mode opeartion,
if you decided to use DDR333 DRAM with FSB 800MHz CPU, the BIOS
will automatically adjust the CPU ratio to the FSB frequency comparable to
DDR333 DRAM, which prevents the CPU from running at FSB800MHz
speed.
Overclocking: Overclocking on this mainboard is only available with this
combination. With this combination, the 800MHz FSB CPU
could be used.
Note: If you want to upgrade to 800MHz FSB with a 533MHz CPU, then you
need to manually set the CPU external frequency to 200MHz. However,
make sure the CPU ratio multiplier is unlocked.
The explanation for overspecification and overclocking
®
DDR 266 / PC 2100
DDR 333 / PC 2700
Yes
Yes
N/A
®

845PE chipset

845PE chipset is only able to support
DDR 400 / PC 3200
N/A
N/A
Overclocking
B-1