HP Z800 integrate 16 GB 1333MHZ ECC DIMM

[Wilmiloard]

The HP Z800 supports Registered 16GB (2H 2009) quad rank PC3-8500R and PC3-8500P 1067MHz DIMMs

http://h20331.www2.hp.com/Hpsub/downloads/Mini_WP_Z800_memory.pdf

Is this today correct or can i integrate Registered 16GB 1333MHZ ECC DIMMs???

[DGroves]

most ram modules will have several speeds programed into them and if the system does not support the higher speeds, it will then use a lower speed in your case almost all 1333 ram has a lower 1067 speed programed into it

got it? using faster rated ram in a system that does not support it will cause the ram to run at a lower speed which the system supports 

the z800 supports both ram speeds when using 4/8/16 meg Registered ECC ram

reread the pdf file you linked to and note the diffrent requirements between the unbuffered and buffered (registered) types of ram you can not mix unbuffered/registered ram in a system 

[Wilmiloard]

I know but but when i integrate 192 GB ram is the Ram speed 1067mhz or 1333mhz?

[DGroves]

please reread the HP memory notes it covers your question(s)

as to 1066 or 1333 speeds, this depends on the cpu used also

16 GB memory modules are usually quad ranked and as such when using 16GB modules the bus wil run at 800mhz not 1066 or 1333 if you want 1333mhz then the limit is 96GB using 8GB modules

http://h20331.www2.hp.com/Hpsub/downloads/Mini_WP_Z800_memory.pdf

[Wilmiloard]

Ok thanks good to know.