?
Solved

Lenovo TS200 memory configuration

Posted on 2014-10-06
4
Medium Priority
?
233 Views
Last Modified: 2014-10-07
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
0
Comment
Question by:Talds_Alouds
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
4 Comments
 
LVL 56

Expert Comment

by:andyalder
ID: 40365563
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.
0
 

Author Comment

by:Talds_Alouds
ID: 40365569
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...
0
 
LVL 56

Accepted Solution

by:
andyalder earned 2000 total points
ID: 40365732
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
0
 

Author Closing Comment

by:Talds_Alouds
ID: 40367422
Fantastic. Thanks!
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Learn about cloud computing and its benefits for small business owners.
Backups and Disaster RecoveryIn this post, we’ll look at strategies for backups and disaster recovery.
In this video, Percona Director of Solution Engineering Jon Tobin discusses the function and features of Percona Server for MongoDB. How Percona can help Percona can help you determine if Percona Server for MongoDB is the right solution for …
In this video, Percona Solutions Engineer Barrett Chambers discusses some of the basic syntax differences between MySQL and MongoDB. To learn more check out our webinar on MongoDB administration for MySQL DBA: https://www.percona.com/resources/we…
Suggested Courses

801 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question