V440 RAM upgrade
Hello,
I have a V440 with 2 processors.
I have purchased an additional 8 Gig of RAM (4x2gb DIMM) and still have 4x512mb DIMMs
Question, how should I install the RAM
Option 1:
Install all 8 Gig on processor 0 and leave the 4x512mb DIMM's installed on processor 1
Option 2:
Install 2x2gb and 2x512mb on processor 0 and install the same on processor 1.
Which will give the best performance?
Thanks
John
[475 byte] By [
turnvinal] at [2007-11-25 22:50:05]

# 2
I would tend to agree with Stuart, but take a glance through the system documentation. (linked from the SSH)
<a href="http://www.sun.com/products-n-solutions/hardware/ docs/Servers/Workgroup_Servers/Sun_Fire_V440/index.html" target="_blank"> http://www.sun.com/products-n-solutions/hardware/docs/Server s/Workgroup_Servers/Sun_Fire_V440/index.html</a>
Page 101 of the V440 Server Administration guide (816-7728) suggests that RAM interleaving takes place at each cpu before it ever takes place <i>between</i> cpu modules.
So your schema #1 would be a better practice.
That document also pointed to the V440 Parts Installation/Removal Guide (816-7729) but I chose to not read that 21.5mb PDF file.
When in doubt, open a service case and have a Sun techsupport engineer review those documents with you.
The final choice may rest upon whatever tasks are done by that box.
Bill at 2007-7-5 17:05:33 >
