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Ram upgrade, mixing different manufacturers

By smiki
Nov 20, 2009
  1. Hi Guys,


    Currently running win 7 64 with 2*2gb(4gb) geil gx24gb8500c5udc and have no probs what so ever, but I'd like to upgrade to 8gb as don't want to end up in dead end with lack of it in year or so.
    There is no same ram left in my city, I can't order it online and I read somewhere that mixing different manufacturers isn't great idea.

    My question is, if I buy ram with same speed 1066, same latency timings 5-5-5-15, and voltage 2.2v, 1066 @ 2.2v, but from different manufacturer (transcend, corsair, kingston, ocz), would I have problems running it (all 8gb) at 1066?
    Mainboard is biostar ta790gb 128, phenom2 940 @ 3.6.

    Any help would be most welcome!

    Thanks in advance!

    smiki
     
  2. raybay

    raybay TS Evangelist Posts: 7,241   +9

    You will have a slight speed differential by mixing memory. We have tested a lot of machines done this way and the differences are marginal... but there are differences.
    Beyond that, the computer will be able to run the memory at the speed of the slowest module with the poorest timings...
    You won't usually have "problems" but you will not have the same top performance as you will with matched sets.
    I would bet you couldn't tell, if you tested two systems side by side on an AMD machine.
     
  3. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    Generally instead of getting the specs right with Ram
    You are best to download your guide on specifically which ram is suited to your computer or motherboard

    Although all specs may be the same, I would advise against having two different manufacturers of Ram cards installed (for non compatibility reasons)
    Why again, can't you order online? You are online at the moment?
     
  4. smiki

    smiki TS Rookie Topic Starter

    because online sellers would not deliver it in serbia where I live:)
     
  5. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    If its eBay, they will if you message the seller and pay up front (even before final sale
    But you can only do this for Gold or high end sellers after confirmation mail
     
  6. smiki

    smiki TS Rookie Topic Starter

    raybay and kimsland thanks for help
     
  7. raybay

    raybay TS Evangelist Posts: 7,241   +9

    'Well you see, Norm, it's like this … a herd of buffalo can only move as fast as the slowest buffalo, and when the herd is hunted, it is the slowest and weakest ones at the back that are killed first. This natural selection is good for the herd as a whole, because the general speed and health of the whole group keeps improving by the regular killing of the weakest members. In much the same way, the human brain can only operate as fast as the slowest brain cells.

    Now, as we know, excessive intake of alcohol kills brain cells. But naturally, it attacks the slowest and weakest brain cells first. In this way, regular consumption of beer eliminates the weaker brain cells, making the brain a faster and more efficient machine. And that, Norm, is why you always feel smarter after a few beers.
     
  8. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    lol :D
    I have never heard of that analogy and I'm concerned it may not be true (for the human)
    No matter of physical abuse and destroying brain cells can be looked upon as a good idea

    Strangely your idea does seem logically feasible though (in theory)
     
  9. red1776

    red1776 Omnipotent Ruler of the Universe Posts: 5,219   +157

    so your saying I should be drinking massive amounts of light beer??....wait what?:haha:
     
  10. g4mer

    g4mer TS Maniac Posts: 310

    Im from Serbia too! :D I have 2x 512 and 2x 256 ram attached to my motherboard. 2x512 are Kingstons and 2x256 are some old rubbish ram 100% sure not Kingston. I have them for 2 years and i didnt have any problems with none of them.
     
  11. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    You know you're not in America, you don't have to announce where you are from all the time :D ;) :p

    Anyway, yes it can work (and does) but preferably use the exact same Ram manufacturers and Ram amounts too ;)
     
  12. smiki

    smiki TS Rookie Topic Starter

    one guy told me that gx24gb8500c5udc is impossible to buy, because it is not in manufacturing process any more, and he suppose to work for some it seller comp, nice :(
     
  13. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    I just Googled that and got 7,430 hits, I'm sure one of them is for sale ;)
     
  14. g4mer

    g4mer TS Maniac Posts: 310

    i just realized that none of my 4 rams are the same manufacturers
     
  15. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    Yes but you have: 2x 512 and 2x 256, which is already strange :D
    You could just sell the lot, and purchase 2x 1 Gig, therefore less ram slots used, and you're getting an extra 512Meg of Ram at the same time ;)
     
  16. g4mer

    g4mer TS Maniac Posts: 310

    yes, but who is dumb enough to buy those 256mb ddr1 ram?:D
     
  17. kimsland

    kimsland Ex-TechSpotter Posts: 14,524

    Well your Motherboard supports: 266/333/400 2.5v DDR SDRAM
    That is pretty common Ram that many Users would need for a lower end system (if they were interested in 2 x 256Meg of Ram)
    Info from HERE
     
  18. g4mer

    g4mer TS Maniac Posts: 310

    I will try to sell it then
     
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