Monkey Google search help needed for memory slot config vs memory type

Discussion in 'Technical' started by AD1, May 12, 2018.


  1. AD1

    AD1 Monkey+++

    OK Monkeys i need some search help

    I have a Toshiba Satellite E45-B2400 laptop.

    2 months ago I found the manual on line that showed me the memory slots(1&2) and the DDR3L memory that it would take. In what config and using what slots.

    I remember that there was a difference between the 1330 and 1600 types of sticks and the max ram it would take.

    Well for the life of me I can not find that page again. I have searched for hours for that page with No Joy.

    My issiue is I have 2 8 gig sticks “UN OPENED” that I paid $160-ish for and I dont want to open the package if I can only run the 24gigs max if that requires the 1333 speed sticks.

    This doc states 16 gig max @ 1600 MHz but I remember reading there was a difference in what was max if 1333 MHz sticks were used.
    http://media3.webcollage.net/849c32...3521000&response-content-type=application/pdf

    Any help would be appricated
     
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  2. ghrit

    ghrit Bad company Administrator Founding Member

    Last edited: May 12, 2018
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  3. AD1

    AD1 Monkey+++

    Thx Ghrit.

    Same info on the link I posted. The doc I am looking for ahd references to both 1333 &1600 speed sticks and said which speeds and max amount of each that were supported.
     
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  4. 3M-TA3

    3M-TA3 Cold Wet Monkey Site Supporter++

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  5. AD1

    AD1 Monkey+++

    Thx 3M. Already been there. I know there is the “fugitive document” out there somewhere that I saw 2 months ago, I just cant find it.

    I even went through my history to try to find it with out luck.
     
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  6. Asia-Off-Grid

    Asia-Off-Grid Frugal Secret Squirrel Site Supporter++

    @AD1, I think I'm confused here. Are you saying you can run more RAM in the machine, depending on the speed of the RAM?

    It's been years (2006) since I purchased a laptop. But, to my knowledge, the motherboard has a single maximum amount of RAM, regardless of clock speed. Has this changed?

    EDIT: In the PDF you linked to in your post, it shows:

    • Configured with 6GB DDR3L 1600MHz (max 16GB)
    • Both slots are occupied. (Memory not user replaceable)

    The RAM is dual channel, and up to a maximum of 16 Gigs (2 x 8 Gig sticks). That is the maximum amount of RAM the motherboard will recognize.
     
    Last edited: May 13, 2018
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  7. AD1

    AD1 Monkey+++

    I saw a webpage that said the amount of ram varied depending onnthe speed 1333 vs 1600 MHz the amount of max ram varied. I can find that webpage again.
     
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  8. Asia-Off-Grid

    Asia-Off-Grid Frugal Secret Squirrel Site Supporter++

    Please see my edited post, above. I have never heard of this. Maybe @sec_monkey can provide further / more current information for you.
     
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  9. techsar

    techsar Monkey+++

    I haven't been able to find anything to indicate surpassing the 16gb...but you may want to make sure your replacement ram is ddr3L...runs at 1.35 volts opposed to ddr3 which is 1.5 volts...
     
  10. 3M-TA3

    3M-TA3 Cold Wet Monkey Site Supporter++

    Usually the amount of memory is determined by how many lines in the address buss, chipset limitations and operating system limitations. The one with the smallest amount of memory wins.

    Memory speed only determines how quickly the memory can be accessed, so I’d be very skeptical of this claim.
     
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  11. Cruisin Sloth

    Cruisin Sloth Special & Slow

    This is also as I have built boxes & installed RAM .
    Speed & voltage is the main (plus slot type ) DIMM ram is fussy & the OS like XP is limited also .
    So I would first go to the Toshiba Satellite E45-B2400 laptop site & check , then digital
    distractions forum , all nerds like me there for post this question . the Sodium style of ram is not as friendly to down clock as the regular PC full sticks ..
    Sloth
    I run Tough Books EX MIL. ones CF29 to CF -70s
     
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  12. techsar

    techsar Monkey+++

    Btw, if you are still running win 8 in 32 bit configuration it won't matter as only the first 4gb will be recognized.

    Gotta run in 64 bit mode for 128 or 256gb limits, depending on exact flavor.
     
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  13. Cruisin Sloth

    Cruisin Sloth Special & Slow

    Nerd Site :
    Digital Kaos
    S
    Join if you can , My Forum is by invitation only !
     
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  14. sec_monkey

    sec_monkey SM Security Administrator

    @AD1 please post or PM some pics of the laptop plus the RAM .. thanks



    Crucial recommends this kit .. it will almost certainly *not* run @ 1866, it will most likely run @ 1333 or somethin


    Image for Crucial 16GB Kit (2 x 8GB) DDR3-1866 SODIMM from Crucial USA
    Crucial 16GB Kit (2 x 8GB) DDR3-1866 SODIMM
    Upgrade for: Toshiba Satellite E45-B4200
    Crucial part number: CT7809037
    Brand: Crucial
    Total Capacity: 16GB kit (8GBx2)
    Warranty: Limited Lifetime
    Specs: DDR3 PC3-14900 • CL=13 • Unbuffered • NON-ECC • DDR3-1866 • 1.35V • 1024Meg x 64 •
    Series: Crucial
    Form Factor: SODIMM


    [winkthumb]
     
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  15. Byte

    Byte Monkey+++

    I like how it says "Memory not user replaceable". Like it's on board or some odd thing. Then is says both slots occupied. Can't see anywhere in the sheet you sent how the actual slots are configured. Max ram is stated as 16GB so with two slots it'll support 8GB SODIMMs. Laptops can be finicky about ram speeds but, in general, as long as you're using ram that is rated faster than what the board supports you should be fine. It looks like that particular laptop came pre-installed with Win 8.1 and 2x4GB SODIMMs. Most laptops won't allow you to fiddle with ram timings so all you can really do is plug it in and see what the BIOS does with them. Since max ram is 16GB and you're limited to dual 8's, there's no getting more. It's most likely not going to recognize a single 16GB SODIMM. Again, only way to know is if you have one sitting around to try. Very expensive test if you have to order one up to check it. 24GB is a no go with 2 slots. There aren't any 12GB SODIMMs to my knowledge. And as I said I'm sure it's not going to recognize a single 16GB, let alone two of them.

    Sorry to say but I think your only option is to bite the bullet and try 'em out. This is where it's nice to be on very good terms with somebody that owns a shop. Someone with a few odds and bobs laying about for testing!
     
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  16. Brokor

    Brokor Live Free or Cry Moderator Site Supporter+++ Founding Member

    They are interchangeable, either will do but 1600 is better (and a little more expensive).

    I have to add, use the same RAM and never mix different types if you can help it.
     
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  17. AD1

    AD1 Monkey+++

    Update,

    Called Toshiba and even though its out of warranty the tech confirmed in the repair manual that it would indeed take the 16 gig total.


    Swapped out the 2 & 4 gig sticks with the 2 -8 gig DDR3L 1600MHz sticks.

    Powered right up. Then after about 4 minutes computer just lost power and shut down. When I say shut down, I mean EMP type shut down, BAM dead, tries to reboot, It does and within a few minutes, same thing.

    Restart - Powered Up then died in about the same about of time.

    Check bios to see if I can change anything- and it a basic bios can even change boot order.

    OK then open it back up, reset the ram sticks. Restart- Same thing.

    Replace the Orig 6 gigs of Ram, runs totally fine for over an hour.

    Shut down, pull the #2 slot of the 8 gig stick and replace it with one of the orig 4 gig sticks.(#1 slot has a new 8 gig stick, #2 slot 4 gigs)
    Restart, and its been running fine for over 45 minutes.

    What say you now?
     
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  18. sec_monkey

    sec_monkey SM Security Administrator

    @AD1 did ya test both of the 8gig stix individually?
     
  19. Byte

    Byte Monkey+++

    Yep see if you can isolate any issue to one of the 8GB sticks.

    As Brokor noted, the general rule of thumb with ram is to not mix speeds or sizes. I've noticed that to be fairly important for all of my desktop builds due to the higher speeds and tighter ram timings. But less so with laptops. Laptops are generally engineered to be much more flexible on the functionality side but less configurable. They build a lot more head room into the specs. You can't push their timings so hard but they will generally let you do a little mixing and matching. You can generally run a 1GB and 2GB SODIMM or a 2GB and 4GB. In your case, a 4 and 8 seem to boot together. They'll also allow different timed rams such as your 1333 and 1600 but the BIOS will default all timings based on the slower speed. My mom and sister both got HP's of the same model with same spec list about a moth apart. RAM config was 2GB for both. one came with matching 1GB sticks and the other came with two different brands though they had identical timing specs.

    Heck my Dell 1730M, a real monster of a machine with a desktop CPU and dual Geforce 8700M gpu's, came with 2 DDR2 533MHz 2GB sticks even though it's build to handle 800MHz ram. Lol but at the time I ordered it with 32bit Vista so it was using just 3GB anyway. Oh and that stupid laptop had a max of 8GB. I see a pair of off brand 4GB sticks will run me about $100. Might be time to resurrect that dinosaur! Thing is totally useless as a portable computer though. It's about as thick as 4 modern laptops stacked together.
     
  20. AD1

    AD1 Monkey+++

    Not yet. Had run for an appointment. Thats next step.
     
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