The P5B is one of the best and proven boards out there. However, it's strange that it has 533MHz. I don't see any of the models on newegg only supporting 533. I'd get one that at least says it supports 800.
I think this is it on newegg. http://www.newegg.com/Product/Produc...82E16813131030 It says it supports 800 MHz. I bet you just have to update the BIOS. But, it has the ICH8 south bridge. I'd check and make sure it supports what you need. You might want the P5B-Plus with the ICH8R southbridge (probably supports different/better hard drive configurations?).
I'd recommend getting the RAM with the 1.8-2.0V rating. Intel's P965 chipset ... well just read this..
Notice: Only DDR2-800 memory supporting JEDEC approved 1.8V operation with timings of 5-5-5 or 6-6-6 is supported on Intel Desktop Boards based on Intel 965 Express Chipsets.
Edit: If you already have the memory, it would probably work even if it's the 2.0-2.2V. Just have to change the voltage in Bios to 2.0V. (I think?)
I think this is it on newegg. http://www.newegg.com/Product/Produc...82E16813131030 It says it supports 800 MHz. I bet you just have to update the BIOS. But, it has the ICH8 south bridge. I'd check and make sure it supports what you need. You might want the P5B-Plus with the ICH8R southbridge (probably supports different/better hard drive configurations?).
I'd recommend getting the RAM with the 1.8-2.0V rating. Intel's P965 chipset ... well just read this..
Notice: Only DDR2-800 memory supporting JEDEC approved 1.8V operation with timings of 5-5-5 or 6-6-6 is supported on Intel Desktop Boards based on Intel 965 Express Chipsets.
Edit: If you already have the memory, it would probably work even if it's the 2.0-2.2V. Just have to change the voltage in Bios to 2.0V. (I think?)