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extrem high vdimms (upper ~3,5V) are a reason for voltage fluctuations in the HT-Part of the A64Quote:
Originally posted by Crankster
Clarification, i was under the impression that voltage fluctuations where the factor destroying A64s, not high Vdimm. Anyone?
Oops, you missed something. Trcd is not the only number going up. Trp matters just as match. So if you go up with those two numbers in the middle, you're going to need 360mhz with 3-4-4 timings to match 2-2-2 at 240 with BH-5. That's according to your calculations. So it looks like you're wayyyyyy off.Quote:
Originally posted by Geforce4ti4200
just read the chart, thats good ram but it runs ras-cas delay of 3 which takes a big performance hit compared to cas-cas of 2 anyway. also its $500+ for 2x512mb sticks, I can get better performance with pc4200 for less by running like 300fsb. youd need 270fsb at ras-cas of 3 to match 300fsb with ras-cas of 4! If thats not true, prove it to me then. eshbash has proved that you need 30fsb to make up for one higher latency in timings. 2----->3 costs 30fsb 300fsb with pc4200 is probably as good as 240fsb with bh5. 5:4 of 300fsb is 240 too.
If I were you, I'd start doing some listening. This very fact has been discussed numerous times.
:toast: :banana:
http://www.newegg.com/app/ViewProduc...146-985&depa=0Quote:
Originally posted by Geforce4ti4200
also its $500+ for 2x512mb sticks
what am I missing ?
I am not sure maybe he means canadian dollars
Probably, being that he's in canada ;)
That really DOES sound like what he's talking about, because a 2x512MB kit of any kind of decent PC3200+ BH5/EB memory IS gonna run you over $500 right now. Silly Canadian dollar..... :rolleyes:Quote:
Originally posted by STEvil
Probably, being that he's in canada ;)
eshbash has tested it out. the other timings matter very little. going from ras-cas delay of 2 to 3 costs 25fsb in performance. all the other timings combined only cost 5fsb. thus 2-2-2-5 at 220fsb was equal to 2.5-3-3-6 at 250fsb. not bad. 3-4-4-8 would need like 280fsb to be equal.
Just started playing with these 512MB sticks of OCZ3700EB on my K8N Pro mobo :)
Useing the min. Vdimm my mobo allows (3.27V) I'm at 285MHz 1:1 3-2-2-8-8-16 so far superpi stable :toast:
Lets see how it will do once I start pushing it ;)
Man, I'm going to have to try this EB stuff.
Macci, does the Cas 3 make much difference in your opinion?
OPP
As far as my testing goes CAS2 2.5 or 3 doesn't make any difference at all. I haven't done any clock to clock comparisons with these sticks yet but you'll see if its faster than BH5 in 3DMark ;)
(282x11 (CPU limit w/ 11x) 1:1 should give a nice improvement over my current score)
btw, superpi 1M passed at 291.5MHz 1:1 3-2-2-8-8-16 now - default heatspreaders no extra cooling..
Great stuff Macci!
OPP
Great results, I guess I will get some EB when I finally get A64, just sell away all the BH-5/6 before it drops in value to finance them. :)
Macci: How fast did you do you 1M Super_pi???
Heh, yeah.....I'm also dying to know. You have to tell us know.....or you'd just be being a big meany. ;)Quote:
Originally posted by Mini
Macci: How fast did you do you 1M Super_pi???
only testing the ram at the moment - low CPU speed. At 2063MHz (294.75 x 7 1:1) it gives 40sec =)
I'll start testing at higher CPU speeds once I find the optimal settings.
Lol... Almost as fast as me... 38 seconds here...
I made 36 but that was at 243fsb cuz the low time ram dont wanna go higher at 3.15V... :(
Cant wait to see it go higher :D
Excellent, keep up posted.Quote:
Originally posted by macci
only testing the ram at the moment - low CPU speed. At 2063MHz (294.75 x 7 1:1) it gives 40sec =)
I'll start testing at higher CPU speeds once I find the optimal settings.
Looks like this is the limit at this point for SuperPi 1M (Vdimm 3.33V, default heatspreaders):
http://www.akiba-pc.com/e107_images/..._295_spi1m.gif
It will do lower timings too :D
http://www.akiba-pc.com/e107_images/...2_2_6_7_16.gif
Nice work there mate :) I can't wait to get me some of this 3700EB once I get my next upgrade in 2months time :)Quote:
Originally posted by macci
Looks like this is the limit at this point for SuperPi 1M (Vdimm 3.33V, default heatspreaders)
-Lucus :)
Hmm, now I've gotta decide if I want the PC3500 or PC3700EB.....If I do end up getting the 3.2C that I want I'll only be running right around or above 250FSB.....so I'm thinkin' that the 3500 should do fine.
firstly i think :eek: to macci !!!
can you test this in a dual channel p4 system to see how far it will go in that.
Mildly amasing tbh !
I thought SuperPI is all about CPU power?Quote:
Originally posted by Soulburner
That FSB is only to show a high FSB, its not made to get high performance. There are better settings for that.
Notice the weak Super PI?
THE RAM GODS HATH SPOKEN!!!!
macci my son, you have been blessed with two gems from the RAM gods.....use them well. :toast:Quote:
Originally posted by hrhrhrfoot
THE RAM GODS HATH SPOKEN!!!!