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Scotty45

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19 years ago

S

Scotty45

14 Posts

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16123

October 16th, 2007 09:00

Memory upgrade on 710 H2C -> 720 H2C

Hello,
     This might seem like a very simple question but i just want to make sure so...
        Im getting a 720 motherboard on thursday. It will then become a 720 H2C
     When I got the pc I got the 667Mhz Ram  (4Gb)   But now when i get the new motherboard i want to get some   PC2-8500   SLI  (EPP)   Sticks (4Gb) somthing like this....
            http://www.overclockers.co.uk/showproduct.php?prodid=MY-082-OC

   My question is, it says it works on nvidia motherboards (and boots at 1066mhz) and this is what im getting...a 680i SLI.
  But has dell modified the board so much the ram wont recognise the motherbaord?   Will it enable the SLI  / EPP and let me change the voltages and  timings?

       Thanks in advance
                        Regards,
                                        Scotty45   (SCO-UK)
  • T

    TangoWRX

    68 Posts

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    Posted October 16th, 2007 10:00

    SLI/EPP  is an option in the BIOS.  If the ram is capable and this option is turned on then it will run at the higher speed.
     
    1066mhz ram is actually 800mhz overclocked and the SLI makes use of instructions on the ram saying it will work at the higher speed.
     
    Oh and in nTune you can play with the timing etc I think.


    Message Edited by TangoWRX on 10-16-2007 06:05 AM
  • A

    aadosx

    111 Posts

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    Posted October 16th, 2007 14:00

    Yes it will work in your computer.
  • P

    pdschweitzer

    436 Posts

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    Posted October 16th, 2007 15:00

    Just remember that installing this newer high speed ram will NOT automatically run at 1066 MHz until you go into the BIOS setup in the Performance section and enable the SLI/EPP option (instead of Standard).
  • S

    Scotty45

    14 Posts

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    Posted October 16th, 2007 15:00

    Ok very good. Thank you for answering my question and making me sure of what Im doing
             Regards,
                           Scotty45  (SCO-UK)
  • S

    Scotty45

    14 Posts

    496

    0

    Posted October 25th, 2007 16:00

    Ok, so i have now got my 720 h2c  after one faulty motherboard...!!
       Now my new ram works when on standard settings at 677Mhz...fine...
     The BIOS finds all the sticks and they all work.
      But when I set EPP/SLI in the BIOS  the computer will not boot. So after 4-5 bad boots the BIOS resets it self and im back to where i started.....with standard ram.....
      Ive tried setting it a couple of times but everytime i have to reset the BIOS.
      I have a british system and i need some help.....Look at my sig for system spec and BIOS
      
         Thanks in advanced,
                                        Regards,
                                                   Scotty45   (UK)
  • P

    patient

    59 Posts

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    Posted October 29th, 2007 16:00

    I have exactly the same problem.  I upgraded the mobo to a 720, installed 2 GB of Corsair PC2-8500, and reinstalled Vista.  I then added another 2 GB of RAM.  The system would not boot up. After multiple attempts, it reset itself and I was able to go into the BIOS.  Whenever I set  memory performance to SLi, the system refuses to boot.  Once I have it in standard, the system seems to work OK...although I have only booted a couple of times as I just installed more memory today.
     
    I read in another thread that even this configuration may not run stably, and that ntune would have to be run and configured to achieve a stable configuration (starting at 2GB, then adding the other 2 GB afterwards).  But I could not find any information on what needed to be done.
     
    Is this a BIOS problem, a mobo problem?  Can anyone indicate what is happening here and what we need to do to get it to work.  I am, unfortunately, not technical enough to understand the overclocking guides on the internet...
     
    thanks.
  • D

    Davet50

    6 Operator

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    14442 Posts

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    Posted October 29th, 2007 17:00

    Are you running a 64 bit Vista.
    Did you apply the patches per microsoft?


    Message Edited by Davet50 on 10-29-2007 02:29 PM
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    patient

    59 Posts

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    Posted October 29th, 2007 18:00

    I am running 32 bit Vista Ultimate, but installed as per instructions: 2 GB...install Vista...add the other 2 GB and reboot.  It is actually when I enable SLi in the performance tabs of the BIOS that the system refuses to boot.
  • G

    gdwrnch3

    2 Intern

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    3278 Posts

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    Posted October 29th, 2007 20:00

       Are you sure they shipped you the correct memory?
    It should be SLI/EPP capable. just a thought.
  • S

    Scotty45

    14 Posts

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    Posted October 30th, 2007 06:00

    Patient,
       I had the saem problem as you did.
       Buy changing the RAM over and using a combination of 2Gb  I found that one of the stick were faulty and im now waiting for my new set
     
    In ntune there is Dynamic BIOS acces....in there you should DISABLE    SATA spread spectrum and SPP spread spectrum, that has help many people

    If not,
     I would do is only using 2gb at a time, try and find a faulty stick or faulty DIMM
      try ram in DIMM's 1+2  if it work try the same stick in DIMM's 3+4 . If it doesnt work its a faulty DIMM ( motherboard need replaced)  If it does work.....then do the same thing again with the other 2gb of ram and if it doesnt work there is a faulty stick (Memory neeed replced)
     
      Hope this helps....

       Kind regards,
                 Scotty45   (Scotland)

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