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    will this RAM work on my laptop?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by lobfredd, Jul 27, 2008.

  1. lobfredd

    lobfredd Notebook Guru

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    lobfredd, Jul 27, 2008
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  2. flipfire

    flipfire Moderately Boss

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    yes but it will just downclock to 667mhz
     
    flipfire, Jul 27, 2008
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  3. lobfredd

    lobfredd Notebook Guru

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    ok, but some other said that my cpu will clocks the RAM down to 533Mhz! (T2370)
    But if it does are the RAM working?
     
    lobfredd, Jul 27, 2008
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  4. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    The CPU and the memory speed can be different.

    John
     
    John Ratsey, Jul 27, 2008
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  5. Andy

    Andy Notebook Prophet

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    The PDC T2370 will operate at a Bus Speed (FSB) of 533MHz, so the RAM will downclock and operate at 533MHz (PC2-4200 speed)....

    Upgrade the CPU or OC it to a higher Bus Speed, the Ram will operate at a higher frequency....
     
    Andy, Jul 27, 2008
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  6. lobfredd

    lobfredd Notebook Guru

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    how to overclock it?
    what app?
    and i dont want to open the laptop to see the pll.
     
    lobfredd, Jul 27, 2008
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  7. Andy

    Andy Notebook Prophet

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    :D I remember you had a similar RAM DDR2-800 thread about this before, and one of the users mentioned - Try out all the PLLs available..!!

    So that is the only option, or if you have ever upgraded the BIOS - Check if there is any text file alongwith that BIOS upgrade....

    One of the Acer users (Atthegates) pointed out that the txt file with his notebook's BIOS upgrade, also had the PLL listed in it.... :)

    Try out clockgen, setfsb and CPUcool, and they may not work well in Vista....
     
    Andy, Jul 27, 2008
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  8. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    But the RAM will also run at CL=4 or lower latency so the difference in performance is not much.

    John
     
    John Ratsey, Jul 27, 2008
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  9. Andy

    Andy Notebook Prophet

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    Yeah, with the PC2-6400 CL=6 or PC2-5300 CL=5, the ram will downclock and function at 266 MHz, CL=4, but if overclocked it will function at 333MHz, CL=4 instead of CL=5.... (a slim gain)
    RAM.JPG RAM2.JPG
    Or if latency matters alot to the OP, he can go for low latency or the (coming soon) ultra-low latency HyperX memory....
     
    Andy, Jul 27, 2008
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  10. flipfire

    flipfire Moderately Boss

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    Interesting.... a dv6800 model that still comes with a Pentium Dual core instead of a C2D.

    I recommend you avoid overclocking, but im sure you still will attempt it anyway.

    That RAM above will have a peak bandwidth of 8.5gb/s (533mhz * 8bytes * dual channel) but your CPU FSB will bottleneck it to 4.2gb/s (8bytes/64bit bus * 133mhz FSB * quadpumped)

    So its pretty much impossible to get the CPU up to speed with your RAM
     
    flipfire, Jul 27, 2008
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  11. Andy

    Andy Notebook Prophet

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    Even if he does it by OCing, it would be overkill....266*32 = 8.512 gb/s.. :D

    The FSB:dRAM ratio is going to remain at 1:2 unless the OP installs a Penryn....or pumps up the FSB..!!
     
    Andy, Jul 27, 2008
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  12. lobfredd

    lobfredd Notebook Guru

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    Can i set the latancy to CL 5?

    i Have tried Memset but one of the timings is not changable!!
     
    lobfredd, Aug 8, 2008
    #12