I have HP Workstation xw4600 (datasheet) with two ECC RAM modules in it. I want buy more RAM modules, specifically two regular non-ECC DDR2 800 MHz. Will these non-ECC RAMs work with this ECC motherboard? If yes, will they work together with the two ECC RAMs or I can use only one type? Thanks.
Manual for xw4600 only lists unbuffered PC2–5300E (667 MHz) and PC2–6400E (800 MHz) DIMMs being supported:
Use only industry-standard, unbuffered, PC2–5300E (667 MHz) or PC2–6400E (800 MHz) DIMMs.
If multiple DIMMs are installed in a workstation, they must be installed in pairs of the same size and typein each channel.