turbo-serve Posted February 2, 2005 Posted February 2, 2005 Guys Been having problems with this new memory. I've had it for about a month. Real problems in the beginning it just couldn't get anywhere near my Geil PC3500 Platinum (was 256x10 at 3.6 vdimm). Normally use a Hellfire bios which has served me well for ages. Faffed around with various bios's and ended up with the latest official. I'm now as per my sig which I'm sort of OK with but The TCCD stuff did seem to promise better. All other bios's (including Hellfires just released latest) only OK up to about 200X10. Oh and strangely, I cannot raise VDimm any more than 2.6 vdimm as I get loads of errors in memtest. Had to remove my VDimm mod and, in fact, if anyone has a VDimm mod to lower the volts and a Hellfire bios based on the latest official I'd probably be a happy bunny. Any thoughts? Quote Share this post Link to post Share on other sites More sharing options...
vega27 Posted February 2, 2005 Posted February 2, 2005 as far as i know, tccd memory is the madman with amd64 chipsets. don't think it's the creme de la creme- but still pretty darn good- when used with nforce2. :sad: Quote Share this post Link to post Share on other sites More sharing options...
tobias Posted February 3, 2005 Posted February 3, 2005 t-s, is that memory runnin at 1:1? cuz if it is, and you got cpc ON, i would think your doing damn well - well enough that i might get some, if it runs that high at low volts. u can see what im gettin in my sig and thats w/ cpc off. my bios is latest standard issue. Quote Share this post Link to post Share on other sites More sharing options...
turbo-serve Posted February 3, 2005 Posted February 3, 2005 OK So, the consensus is alls well. I'll have to get me one of those 64 bit chips and a board to play around with. For me, it was just the odd bios and voltage thing that made me think I've been doing something wrong. Tobias, mem ratio is 1:1 CPC on etc. This stuff is also reasonably cheap, £160 for 1GB. Regards Quote Share this post Link to post Share on other sites More sharing options...
uwackme Posted February 3, 2005 Posted February 3, 2005 Lowering Vdimm isnt hard to do.... but requires soldering. THink about it, the Vdimm mod is adding a pot to LOWER the resistence value of the little SMD resistor we solder the pot to. So, by replacing the resistor with a HIGHER value one, you will LOWER the Vdimm. Further putting a pot on it now allows say 2.0-4.0V range on the Vdimm, rather than 2.5-4.0 with normal setup. Just a thought. Quote Share this post Link to post Share on other sites More sharing options...
Rabbi Posted February 3, 2005 Posted February 3, 2005 Lowering Vdimm isnt hard to do.... but requires soldering. THink about it, the Vdimm mod is adding a pot to LOWER the resistence value of the little SMD resistor we solder the pot to. So, by replacing the resistor with a HIGHER value one, you will LOWER the Vdimm. Further putting a pot on it now allows say 2.0-4.0V range on the Vdimm, rather than 2.5-4.0 with normal setup. Just a thought. Instead of removing anything... would soldering a pot in parrallel with existing resistor do the job? Quote Share this post Link to post Share on other sites More sharing options...
uwackme Posted February 3, 2005 Posted February 3, 2005 No, you need to INCREASE its value.... soldering a resistor in SERIES would do the same, but replacing a 805 sized SMD resistor isnt that hard to do. I dont know what the default value is of the resistor they use, someone would have to remove it, measure it, OR.... actually you could just replace the resistor entirely with a pot, and dial in the Vdimm. Not sure what value to use, but MAX value would need to be no higher than what is needed to make Vdimm say 2.0V Quote Share this post Link to post Share on other sites More sharing options...
turbo-serve Posted February 3, 2005 Posted February 3, 2005 Hey, that's a good idea, but maybe 2.4V to 4.0V is a good range (might not boot at 2.0V) and it makes sense to increase the resistance. I'm not sure of the validity of lowering the volts for a higher clock, never ever did that with the Geil memory, but I definitely watched the errors in memtest drop to zero at 2.6 volts as I lowered the voltage. I do have a heat gun and access to SMD resistors so it's worth thinking about. But do I have the courage? Probably need to plan next board, just in case! Regards Quote Share this post Link to post Share on other sites More sharing options...
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