Lenovo TS200 memory configuration

Hi,

It's a little late in the day and I'm a little brain dead. Can someone help me with the RAM configuration for this machine?

Here's the link to the documentation.

I'd like to put 32GB RAM in this system, does it only support 32GB @ 800?

Thanks
Talds_AloudsAsked:
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andyalderCommented:
Yes, the drop in speed is due to having to use two quad-rank DIMMs on each channel = 8 memory ranks which is the maximum the bus will support. RAM speed isn't that important on commercial applications though, it really matters for scientific things such as weather forecasting. That's assuming the Lenovo doc is correct and it is quad rank, it may be dual rank since they weren't available when it was written. 46U2942-MU seems to be all that is available but can't find Mushkin's datasheet.
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Talds_AloudsAuthor Commented:
Thought that was the case - thank you.

Well I'm wanting to virtualise a DC, RDS server and fairly small databse on 32GB...I'm just worried that 800 will be too slow...
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andyalderCommented:
Below is a snippet from a benchmark test by Fujitsu using different speed DIMMs, you can see that 1600MHz DIMMs make STREAM benchmark run 82% faster than with 800MHz ones, but SPECint benchmark only runs 15% faster. Commercial apps such as databases are like SPECint, not like STREAM. You're not doing any memory intensive work such as scaling graphics with normal apps, most of the RAM is just used as disk cache by the OS or SQL.

(google for STREAM benchmark fujitsu and the PDF is first in the list, it's for a different CPU but still relevant to any CPUs)

Benchmark 1600 MHz 1333 MHz 1066 MHz 800 MHz
STREAM
1.82 1.59 1.31 1.00
SPECint_rate_base2006
1.15 1.13 1.07 1.00
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Talds_AloudsAuthor Commented:
Fantastic. Thanks!
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