GA-EP45-UD3R - Reboot Loop

[Reggie]

GA-EP45-UD3R supported memory:
Support for DDR2 1366+*/1066/800/667 MHz memory modules
* Refer to Memory Support List for more information

PC2 4200 DDR2 SDRAM 533 MHz modules are not listed as compatible.
1GBULURTTLBB - 1 GB DDR2-533 DDR2 SDRAM

[Fossil Rock]

"Verifying DMI Pool Data...." can be caused by the BIOS as well as software and hardware issues.

Everything was working fine before the mobo/cpu upgrade.

@Chike, are you referring to the Memory Frequency?

[Fossil Rock]

Originally Posted by Reggie

GA-EP45-UD3R supported memory:
Support for DDR2 1366+*/1066/800/667 MHz memory modules
* Refer to Memory Support List for more information

PC2 4200 DDR2 SDRAM 533 MHz modules are not listed as compatible.
1GBULURTTLBB - 1 GB DDR2-533 DDR2 SDRAM

From Memory Support List (on website):

"Memory modules listed below are for reference only. Due to massive memory models on the market, we can only verify some of them."

[Fossil Rock]

Should I be looking into manually setting the DRAM Timing or the System Memory Multiplier?

[Fossil Rock]

If the Memory modules aren't compatible, what modules are recommended for this mobo?

I don't mind getting new memory, but I would like to know what would be in the top 10.

[Chike]

The lowest multiplier for the board is 2, with 333FSB the memory will run at minimum 667MHz which is overclock for rhis model.
I cannot recommend any specific model, but get a good quality ram, note one of the "value" types. DDR-800 if you do not intend to overclock, DDR-1066+ if you do.

[Fossil Rock]

Would this be a good choice?

http://www.corsair.com/_datasheets/TWIN2X2048-6400.pdf

[Chike]

Those only 2GB(2x1GB), not top of the shelf, I have the low latency version and have no problems, but already been told I am lucky because others do.
If you need 4GB look for a 2x2GB kit, 4 sticks may be more of a hassle.

[Fossil Rock]

What are the basic differences between DDR / DDR2 / DDR3 ?

533 / 667 / 800 / 1600 ... in regards to this mobo?

Buffered vs unbuffered ?

I want to make an educated decision.

[toslat]

DDR, DDR2 and DDR3 are 3 different and incompatible types of memory. The motherboard you have supports only DDR2 memory.

The E8400 CPU runs at a default FSB of 333MHz, which (using the lowest memory multiplier of 2x) requires the memory to run at DDR2-667.

Your current memory is specified at DDR2-533, so at default setting you are trying to run it beyond it stated specification. WIll advise you get at least a DDR2-667 memory, though DDR2-800 or DDR2-1066 would be preferable.

In the mean time, you can try underclocking the CPU by setting the FSB clock to 266MHz with 2x multiplier.