Quantcast Upgrading memory. PC2-4200 with PC2-5300?

Closed Thread
Results 1 to 9 of 9
  1. #1
    Newbie
    Join Date
    Apr 2008
    Posts
    6
    Rep Power
    16

    Default Upgrading memory. PC2-4200 with PC2-5300?

    Hey there,
    I know i'm a little bit behind with 512MB of RAM on my Satellite M115, but i've decided to upgrade to another gig or two.
    What i have now is ONE 512MB PC2-4200 stick in one slot. There is two slots. And according to memory-up
    (http://www.memory-up.com/Memory_Find...3421&system=1)
    and the user manual i can put in up to 2GB per slot (4Gig total, which memory-up doesn't recommend for those running Windows).

    On that same page, memory-up offers two 2GB sticks:
    PC2-4200 2GB
    PC2-5300 2GB

    Now here is the question :
    If i want to keep my 512 stick in there, should i get PC2-4200 or PC2-5300 module?
    I think i've read somewhere that having PC2-4200 and PC2-5300 running together results in the speed of PC2-4200.. That's where i'm not sure.
    Can anybody explain how this is? Any suggestions?

  2. #2
    Notebook Virtuoso
    Join Date
    Sep 2006
    Location
    PA-US
    Posts
    2,762
    Rep Power
    31

    Default Re: Upgrading memory. PC2-4200 with PC2-5300?

    The faster ram downclocks to the speed of the slower ram. You will be fine with it.

  3. #3
    Banned
    Join Date
    Aug 2007
    Location
    Chicago, IL, 60626. Rogers Park
    Posts
    5,758
    Rep Power
    0

    Default Re: Upgrading memory. PC2-4200 with PC2-5300?

    R4000 is correct but with RAM being so cheap I would not even hang on to that 512MB stick. At NewEgg about $40 to get 2X1GB sticks.

  4. #4
    Bog
    Bog is offline
    Losing it...
    Join Date
    May 2006
    Location
    Canada
    Posts
    6,046
    Rep Power
    49

    Default Re: Upgrading memory. PC2-4200 with PC2-5300?

    As per R4000's post, the PC-5300 should downclock. Note, however, that any faster RAM won't downclock.
    "Earth" Desktop | Asus 21.5" 1920x1080 | C2D E6750 @ 3.0GHz | 4GB RAM | 500GB + 1TB HD | Radeon 6850 | Corsair TX650 | Windows 7 64-bit

    "Mercury" uMBP | 13" LED | C2D P8400 @ 2.4GHz | 6GB RAM | 500GB HD | Mac OS X 10.7

  5. #5
    Newbie
    Join Date
    Apr 2008
    Posts
    6
    Rep Power
    16

    Default Re: Upgrading memory. PC2-4200 with PC2-5300?

    Thanks for replies!
    Well, i mess a lot with virtualization(running few OSs at the same time) and emulating routers(= LOTS OF RAM), so i thought that 2G + 512M would be better than 2G .
    (Oh yes, i'm only going to buy 2Gig module, so that if i'll go up to 4 i won't have to throw away any 1Gig's.)

    So you're saying that running 2Gig and 512M at the 4200 speed won't be as efficient as running 2Gig by itself at 5300?

  6. #6
    Banned
    Join Date
    Aug 2007
    Location
    Chicago, IL, 60626. Rogers Park
    Posts
    5,758
    Rep Power
    0

    Default Re: Upgrading memory. PC2-4200 with PC2-5300?

    Running 5300 vs 4200 is about the same. The increased speed is offset exactly by the latency. Running 2GB and 512MB is better than running just 2GB. It will run the 1st GB in dual channel (if supported) so yes that is fine. But also do you think you are going to switch OS's on this notebook? You can't make use of 4GB with 32bit OS

  7. #7
    Newbie
    Join Date
    Apr 2008
    Posts
    6
    Rep Power
    16

    Default Re: Upgrading memory. PC2-4200 with PC2-5300?

    It does support dual channel, at least according to the specs i found..
    And about the 4GB limit, i thought it only applied to Microsoft Windows.. I have Fedora linux installed as a second OS on it and i'm pretty sure it's 32bit also. I thought it was the processor that determined whether i can run 32 or 64, that's why i always downloaded the 32bit distros..

  8. #8
    Banned
    Join Date
    Aug 2007
    Location
    Chicago, IL, 60626. Rogers Park
    Posts
    5,758
    Rep Power
    0

    Default Re: Upgrading memory. PC2-4200 with PC2-5300?

    Oh Boy Kid. Here we go, 32bit OS can only support 4GB of memory addresses no matter what OS you use. Certain components per se the video card use these so you don't even really have 4GB's. Before someone responds with PAE, that is crap! With a 32bit OS about 3GB's is the most you can make use of.

  9. #9
    Newbie
    Join Date
    Apr 2008
    Posts
    6
    Rep Power
    16

    Default Re: Upgrading memory. PC2-4200 with PC2-5300?

    Alright then thanks for your help. For now i'm getting that PC2-5300 2GB, and see how it runs with what i have. Or i'll be a good brother and give my 512 to my sister who has the exact same laptop running on one 512 stick
    Thanks for your help!

 

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
All times are GMT -4. The time now is 02:19 AM.
Powered by vBulletin® Version 4.2.2
Copyright © 2014 vBulletin Solutions, Inc. All rights reserved.
SEO by vBSEO 3.6.1