Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have this laptop from 2009

  • N07X1604
  • STUDIO XPS 16 : INTEL CORE 2 DUO T9900(3
  • MEMORY : 4096MB (2X2048) 1067MHZ DDR3 DU

As you see, it comes with 2 modules of 2gb 1067MHZ DDR3. Now I have searched in the documentation here on page 63

so it seems that it supports 8gb ram. but a single 4gb seems unsupported?

When I insert the two 4gb ddr3 1066mhz modules the disable sound button is on and the increase volume button is on and the decrease volume button is blinking. the system does not boot. With the old memory, it boots.

So is 8gb ram possible? or not? a lot of websites (which sell ram) say that the xps 1640 can have 8gb ram.

share|improve this question
up vote 8 down vote accepted

Your laptop only supports 4GB

Studio XPS 1640 1 GB, 2 GB, 3 GB, and 4 GB

The other two models of this series do support 8GB

Studio XPS 1645/1647 1 GB, 2 GB, 3 GB, 4 GB, and 8 GB

There is nothing you can do to make it support 8GB. I hope you can get a refund on the memory you purchased.

share|improve this answer
isn't it rare that a notebook cannot get a memory upgrade after purchase? – JP Hellemons May 29 '12 at 11:29
@JP yes and no. It depends on the CPU and motherboard combination. Take it into account next time you buy a machine – Simon Sheehan May 29 '12 at 11:40
Thank you @Ramhound: I came via a search for EXACTLY the same issue and you've really helped. :) – Mark Jun 8 '12 at 22:07

I've similar problem. According to Intel chipset PM45 do support up to 8GB. The problem is a memory modules compatibility. It seems that only one who do the job is Samsung: DDR3 1066MHz // 4GB 2Rx8 PC3-8500S (07-10-F2) // M471B5273BH1-CF8

share|improve this answer
So you are saying that my 3 year old Dell XPS 16 can support up to 8gb? Have you tested this? – JP Hellemons Nov 26 '12 at 13:05
"4 GB RAM which is upgradeable upto 8 GB" according to. – pnuts Nov 26 '12 at 15:03
@Ramhound My comment was based on "Summary of Dell Studio XPS 16 Core2 Duo T9900 This laptop comes with Intel 3.06 GHz Core2 Duo processor, 4 GB RAM which is upgradeable upto 8 GB" but I'm happy to delete my comment if best to do so. – pnuts Dec 4 '12 at 11:59

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .