I am reading the Memory page in the SUN Systems Handbook:

http://www.sunshack.org/data/sh/2.1/....central/data/
syshbk/Devices/Memory/MEM_SunBlade_150.html

Under "Notes" I read:

4. Each DIMM slot addresses 1GB of memory with >=550MHz UltraSPARC IIi.

Under "UltraSPARC Notes" I read:

6. The 550-700MHz UltraSPARC IIi addresses 1GB per bank.

My question is this, can the SunBlade 150 take 4 x 1 GB DIMMS ??

Thanks in advance.

No.

You can only run 2GB max in the system.

Per #6 in your post "1GB per bank" each bank consists of 2 slots.

So 1GB per bank = 512mb in each slot 512mb/slot X 4/slot = 2GB

Your question got me to thinking a little more.

I checked on www.centon.com and followed the links for the Sun /
Desktops / Sun Blade 150 and it does say you can use 1GB DIMMS in each
slot for a total of 4GB!

However, the Sun site only references 2Gb. Guess I will have to go buy
some DIMMs and try it out.

Mike wrote:
> Your question got me to thinking a little more.
>
> I checked on www.centon.com and followed the links for the Sun /
> Desktops / Sun Blade 150 and it does say you can use 1GB DIMMS in each
> slot for a total of 4GB!
>
> However, the Sun site only references 2Gb. Guess I will have to go buy
> some DIMMs and try it out.
>
It would be worth asking at the above site if it might be a mistake.

Today someone quoted me for a HP J6500 with 1.5 GB of RAM, which did not
make sense as the dimms have to be installed in pairs and are only
supposed to be 512 MB or 1 GB each. Sure enough, he had made a mistake.

Of course, it is quite possible the machine was designed to take larger
dimms, but there were not available when the manual was produced.
--
Dave K

Minefield Consultant and Solitaire Expert (MCSE).

Please note my email address changes periodically to avoid spam.
It is always of the form: month-year@domain. Hitting reply will work
for a couple of months only. Later set it manually.

In article <1141163707.948382.231270@e56g2000cwe.googlegroups .com> "Mike" <msargent100@hotmail.com> writes:
>Your question got me to thinking a little more.
>
>I checked on www.centon.com and followed the links for the Sun /
>Desktops / Sun Blade 150 and it does say you can use 1GB DIMMS in each
>slot for a total of 4GB!
>
>However, the Sun site only references 2Gb. Guess I will have to go buy
>some DIMMs and try it out.

I suspect that this is along the lines of the V100's and V120's having
a supposed maximum of 2GB -- I've have 2.5 GB in a 550 MHz V100 -- the
problem is getting 1 GB modules that'll fit in those angled slots on
a V100. You really need single-sided modules, but when I was looking
into this, I couldn't find any.
--
Jeff Wieland

After a bit more research --
http://www.sun.com/products-n-soluti...16-4379-10.pdf
on page C-18 Sun states:

Quote --
The CPU L2 cache megacell reserves a 4 Gbyte region for cacheable main
memory.
The memory controller only supports 4 Gbytes of space.

----------------------------------------------------------------------------------------------------------------------------
Note - Although the cache and memory controller support up to 4 Gbytes,
only
512 MB DIMMS are supported on the Sun Blade 150 system. This limits the

maximum DIMM configuration to 2Gbytes.
-----------------------------------------------------------------------------------------------------------------------------

-- Quote


So we are only able to use 2GB on the system.


Mike