Mixing memory modules in Powermac G5

[GreenDice]

If I have both CAS3 and CAS4 RAM modules for the PowerMac, will the computer automatically use the lowest speed for both? They are both DDR2 PC2-4200 533Mhz but the CAS3 memory have faster timing.

If so, I should replace the factory-installed CAS4 RAM with the faster RAM.

Thanks in advance.

 

[homerjward]

If I have both CAS3 and CAS4 RAM modules for the PowerMac, will the computer automatically use the lowest speed for both? They are both DDR2 PC2-4200 533Mhz but the CAS3 memory have faster timing.

If so, I should replace the factory-installed CAS4 RAM with the faster RAM.

Thanks in advance.

don't quote me on this but i don't believe the g5 will run it any faster than CAS4. this was also true of the older g5s which wouldn't run anything faster than CAS3.

 

[Sun Baked]

It's not going to make any significant difference what CAS level you choose.

Having enough memory to avoid the Virtual Memory penalty matters MUCH MORE than having too little of a more expensive memory choice.

Too little memory, and you will hit the "as fast as a HD" memory speed bump.