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  • anandtech02148 - Tuesday, January 02, 2007 - link

    let say a dual ddr2 800mhz occupied 2 slot
    and the other 2 slot is occupied by 533mhz ddr2

    although they operate at different voltage, will it work?
    what am i to do with older memory modules when all these new
    1111mhz and newer models come out
    Reply
  • Wesley Fink - Wednesday, January 03, 2007 - link

    Different grades of memory can be on the board, but the channels can not be individually set. Therefore the memory has to be run at the speed of the slowest modules. However, some 533 can run DDR2-800 and most run at least 667. Reply
  • anandtech02148 - Monday, January 01, 2007 - link


    Cheers to Anandtech for using a 520psu. hooorayy.. finally we're testing something at a sane level.

    600buxs for memory, one of the reason why Intel got out of memory business to focus on Cpu
    in 1980s.
    2.4v to operate, are we reaching 12v soon for running memory modules?

    in the meantime i'm still dreaming for that 2gig at 100buxs range. and i was a fan of Rambus RAm until this ddr cartels took over.

    Reply
  • daos - Monday, January 01, 2007 - link

    I recently purchased some Dominator PC6400C4D to replace my old OCZ PC6400 Platinum. I can honestly say that the heatsinks make a huge difference in overall temps of the DIMMS. Either the OCZ ran extremely hot at default voltage or the Dominators are insanely efficent at keeping the memory cool.

    I run these at 2.4v 3-3-4-9 DDR2800Mhz and they are cool to the touch. I still cannot believe how cool these heatsinks keep the memory. At first I was hesitant to raise the voltage to 2.4v but after seeing how cool they run I wish my P5WDH board allowed for higher memory voltages!

    Guys/Gals, the heatsinks really do work and I am a living example of it. I have always been the one to instantly rip the spreaders off of memory in the past but these really work.
    Reply
  • MadAd - Monday, January 01, 2007 - link

    Not so long ago ram worked perfectly fine without heatspreaders at all, calculations at the time showed that ram was no-where near needing them now its hard to get anything but value ram without them. For a few coinsworth of metal they have engineered lots of pretty colors and shapes to dazzle us with but do we really need it?

    IMO instead of a pro-forma memory review, you have an opportunity to spice it up a bit with the angle of either supporting this new fad, or cut through the spin, with some measured data. Simply take the ugly things off and benchmark it again. See if it still hits the same highs and still retains its timings with no heatspreader.
    Reply
  • Wesley Fink - Monday, January 01, 2007 - link

    A very good idea. The only problem is the inner heatsinks are heat merged to the PCB, and the outer heatsinks use a thermal epoxy for mounting to the memory chips. Unlike the old days, removing a heatspreader is now often fatal to memory. The surface mount memory chips are easily pulled off, even if you use extreme care, in trying to remove the outer heatspreaders. Removing the inner ones could destroy the PCB.

    We could test this if the memory makers would supply the memory without heatsinks. The question then is why would they want to?

    I can tell you from past testing that fan cooling the memory definitely extends overclocking to higher levels. However, removing heatsinks made no difference at all in OC on DDR with simpler sinks. This setup by Corsair is quite a bit more sophisticated than the colored metal covers and it may make some real difference in performance.
    Reply
  • MadAd - Thursday, January 11, 2007 - link

    Ok point accepted that it may be hard to render them testable if epoxy is used but dont you love a challenge? :lol:

    Honestly, its starting to get serious now with these http://www.dailytech.com/article.aspx?newsid=5662">http://www.dailytech.com/article.aspx?newsid=5662

    As you know yourself fan cooling is something applied whatever the form they come in, ok so you could analyse how efficient each method is but the big question is still whether its all just hype or not. I think hype.
    Reply
  • cmdrdredd - Monday, January 01, 2007 - link

    Team Extreme memory never comes with heatspreaders, and they make memory that can go to DDR2-1200 with the right setup. What does this tell you? Reply
  • customcoms - Monday, January 01, 2007 - link

    quote:

    More often than not it registered the highest test results, but the differences in performance at stock speeds are very small. Above DDR2-1067 Dominator broke away from the pack, producing the highest game test results we have seen so far at any overclocked speeds. This is no doubt the result of the tighter 4-4-4 timings that could be maintained all the way to DDR2-1233. Corsair Dominator set new performance records in every test category, and it managed to just edge the also fast OCZ Flex XLC in most gaming benchmarks.


    Wes, I am sorry, but if I'm reading the same benchmarks as you are, of the three games you tested, the OCZ is still the fastest memory (granted, Quake 4 is within margin of error) period, around 1-2 fps faster than the corsair. Why you say the corsair is faster when the benchmarks speak otherwise (the tighter timings+higher speed and the higher raw speed of the corsair is the only thing I see better than the OCZ).

    Basically, in real world applications (i.e games, which are what 95+% of the market buying these kits are doing with their machines), the OCZ is faster, according to YOUR OWN benchmarks. You also give it the edge on the 975X platform. Hence, I would say it is the better ram (plus it has the option for water cooling). Doesn't really matter, as I won't be spending that kind of money on ram EVER-better to buy an 8800GTX etc.
    Reply
  • Wesley Fink - Monday, January 01, 2007 - link

    When you also include results on the nVidia 680i the Corsair Dominator is faster overall. On the 975x, which is the only thing included in the graph results, the OCZ Flex XLC is faster. Individual timings are also slightly faster at DDR2 1067 and DDR2 667 on the Corsair.

    OCZ Flex XLC and Corsair Dominator PC@-8888 are both at the top of our benchmarking and either would be a great enthusiast choice. The Corsair pushes the 680i slightly faster and therefore is the fastest memory we have tested to date.
    Reply
  • classy - Monday, January 01, 2007 - link

    It won't be on memory that gives me an extra 2-5 frames. While it performs well, it just doesn't make enough of a performance impact to warrant the price. Maybe for a dream system but for the other 99.75% of the pc world this memory is clearly a waste of money. Reply
  • code255 - Sunday, January 07, 2007 - link

    Totally agree. Buying super high quality memory is an utter waste of money. Double the cost of normal RAM for like 1% higher framerates? Thanks, but no f***ing thanks!

    I usually buy value RAM from decent manufacturers (which is more expensive than from no-name brands) just for the sake of stability. RAM just doesn't have a significant enough impact on gaming performance to justify the insane prices of the top-of-the-line stuff.
    Reply
  • tayhimself - Tuesday, January 02, 2007 - link

    This is such another example of reviews driven by ridiculous marketing than by product reviews that may be worthwhile or beneficial to 99% of readers. I don't doubt there are people spending $600 on 2 GB of DDR2 to get that extra 1.5% performance boost, I just doubt there are very many of them.

    A review of value RAM sticks on 965, 975x, or 590 chipsets would be far more useful and informative because of ridiculous compatibility issues with mobos. But alas these reviews rarely happen...
    Reply
  • bigboxes - Monday, January 01, 2007 - link

    It's nice to see Corsair finally getting back into the game. Here's to prices dropping, though it may be a while. :) Reply
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