Pimmetje Posted July 18, 2005 Posted July 18, 2005 Hey guys, I was just wondering, since there are a few different revisions of the Samsung TCCD chip, which would be best for getting high speeds. Mine are the 431 I think, but dunno for sure, they are rated for 2-2-2-5 @ DDR400 and 2.5-3-3-7 @ DDR550. Seeing the timings for DDR550, is it safe to say that I have still a bit of headroom to play with over DDR550??? Thanks for any info Pim Quote Share this post Link to post Share on other sites More sharing options...
vega27 Posted July 18, 2005 Posted July 18, 2005 Seeing the timings for DDR550, is it safe to say that I have still a bit of headroom to play with over DDR550??? if indeed you're only using 2.7vdimm to run at DDR550 then i'd say you definitely should have at least some headroom left. 2.7V has a ceiling, 2.8V should have a higher ceiling and 2.9V should have an even higher ceiling. 2.9V is the sweet spot for most TCCD. however, this all kinda depends on your CPU too since your RAM can only go as high as the processor. and if you just keep upping the clocks with 1:1 RAM, it's gonna be harder to decipher your problems (i.e. is RAM too high, or CPU?). plus, you'll have to reset BIOS more often. first, put RAM on a big divider and find the FSB limit of your CPU. then it'll be easier to work the RAM back up to 1:1. that said, you might be able to do 300x9 1:1. won't know til ya try! Quote Share this post Link to post Share on other sites More sharing options...
Pimmetje Posted July 18, 2005 Posted July 18, 2005 Ok, thanks for the advice. I'll choose an insane divider and be sure ram won't be the problem. Let's hope she'll play nice and give me a nice HTT speed. Will keep ya posted. Quote Share this post Link to post Share on other sites More sharing options...
PC1X1 Posted July 19, 2005 Posted July 19, 2005 Plz do I got TCCD Quote Share this post Link to post Share on other sites More sharing options...
Pimmetje Posted July 19, 2005 Posted July 19, 2005 I benched a bit with Sisoft sandra and here's a linky to a score I started with: http://www.techimo.com/photo/showphoto.php?photo=7881 It's running @ DDR400 with 1.5-2-2-5-1T timings the rest is set to auto in genie bios. So I can still tweak a bit more, right?? Quote Share this post Link to post Share on other sites More sharing options...
vega27 Posted July 19, 2005 Posted July 19, 2005 everything was @stock for that sandra bench, right? i thought you were gonna try to find the FSB ceiling of your cpu? all TCCD can do 2-2-2-X @DDR400 so i'm not sure what you're trying to show here. Quote Share this post Link to post Share on other sites More sharing options...
Pimmetje Posted July 19, 2005 Posted July 19, 2005 That was just a tryout, to warm things up. And to have a comparison for myself of improvements in bandwidth. I have another screenshot pending approval where the ram and cpu are running 275Mhz fsb synced. The timings for that setting are 2.5-3-3-7 @ 2T. Unfortunately it won't do 1T at that speed, anyone know why that is?? Bandwidth at that speed is 6400Mb/s, dunno if that is any good?? The above timings are the only things set, the rest is on auto, so I still have to do some tweaking. Be patient, I'm not gonna rush this. Quote Share this post Link to post Share on other sites More sharing options...
vega27 Posted July 19, 2005 Posted July 19, 2005 do you have CPC enabled in bios or is it set to auto? enable it. edit: if already enabled, you're gonna need more voltage to get em to run 1T. Be patient, I'm not gonna rush this. the best outlook to have! Quote Share this post Link to post Share on other sites More sharing options...
Pimmetje Posted July 19, 2005 Posted July 19, 2005 I had it on enabled, but it wouldn't boot into windows with it on. More voltage?? I had it on 2.8V, so I guess I still need more. Is it save to set it to 2.9 without some additional cooling over it?? I still have to place a dedicated fan over them, and also add some ramsinks. Quote Share this post Link to post Share on other sites More sharing options...
vega27 Posted July 19, 2005 Posted July 19, 2005 like i said before, 2.9vdimm is the sweet spot for most TCCD. if you've got good case cooling, that should be sufficient for 2.9V. i ran my old ocz plat. 2 at 2.9V forever without a dedicated fan. of course, active cooling is always better so don't let me talk you out of it. just not necessary, i don't think, unless you go > 2.9V. very few have gotten higher clocks using > 2.9vdimm with TCCD. Quote Share this post Link to post Share on other sites More sharing options...
brocklanders34 Posted July 19, 2005 Posted July 19, 2005 i got the corsair xms 3200xl i got it at 2.9 3-4-4-8-1T and got it at ddr600 http://valid.x86-secret.com/show_oc?id=28088 i bet it can go higher Quote Share this post Link to post Share on other sites More sharing options...
Pimmetje Posted July 19, 2005 Posted July 19, 2005 Here's the link to my bandwidth @ 275Mhz busspeed: http://www.techimo.com/photo/showphoto.php?photo=7886 That is with 2T CPC, so 1T should give nice improvements, right?? *EDIT* About my ramsinks, they are heatspreaders with a heatsink on 1 side and a flat spreader on the other side. But my conducting tape is no more, since the ramsticks are placed horizontally, isn't it possible to apply a small biy of AS5 on each chip and use the clamps that came with the heatspreader to keep em in place?? Quote Share this post Link to post Share on other sites More sharing options...
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