Is it ok to mix ram speeds on the same computer? PC already has one stick 512mb DDR PC 2100 -266 Mhz. I have a spare 512mb DDR PC3200- 400Mhz and was wondering if I could use that to speed the computer up a bit. I understand that only the lower speed is recognised but would it be harmful to use both sticks? Thanks
Hi quoting from mike myers comp tia book "...In a worst case scenario, mixing DRAM speeds can cause the system to lock up every few seconds or every few minutes. You might also get some data corruption. Mixing speeds sometimes works fine, but don't do your income tax on a machine with mixed ram speeds until the system has proven to be stable for a few days." He aslo adds that you can't break the machine by trying so it maight be worth a go but how poor are you that you can't afford a new ram stick?
For the safest most stable system use only RAM in matching specifications - faster RAM might run OK at a slower speed, but it's timing specifications will be different, which may cause data corruption - in the worst case very intermittent data corruption.
There's nothing worse than a system that crashes just occasionally for no apparent reason.
Matching pairs of RAM in modern systems are required if you have dual-channel RAM capability on the motherboard. This can result in significant speed improvements, as RAM accesses are interleaved, rather than sequential.