:banana: :banana: :banana:Quote:
Originally Posted by s7e9h3n
i'll go out on a limb and that it is indeed the worst time i've ever seen at 3.7ghz.. on the amd side of things at least ;)
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:banana: :banana: :banana:Quote:
Originally Posted by s7e9h3n
i'll go out on a limb and that it is indeed the worst time i've ever seen at 3.7ghz.. on the amd side of things at least ;)
ok here's the results.Quote:
Originally Posted by s7e9h3n
at idle with 2x512mb bh-5 @ ddr466: 2.0-2-6-2, 2T (1T will crash no mattrer what i try so far)
vdimm is 3.04 solid
vtt is 1.528
loaded 32M super-pi
vdimm is 3.04 solid (no finer measurement available)
vtt fluctuates rapidly from 1.529 to 1.521 and all figures inbetween
(not looking too good is it?)
thanks agaain for the help so far :cool:
Isn't that pretty good though? Only .008v change
BTW 200MHz 7.8us TREF is 0016 cycles, gets about 1300mb/s bandwidth and 175ns latency for me. And your time with it is still better than mine with normal settings :(
Your VTT is absolutely dead on. FYI - VTT = 1/2 of VMem so looks like your board is holding your VTT levels perfect. The problem is somehwere else......;)Quote:
Originally Posted by flytek
lol...but I'm sure if your were @ 3.7Ghz, a 28sec 1m would be just a bit off....For the record, I can go >1sec faster than that on air @ 3G.....Quote:
Originally Posted by Repoman
you sure? what if i'm getting the vtt spikes scoped out by EMC2 when using 4x256 or 2x512 at 1T? he was noticing severe problems clocking bh-5 in test 8 of memtest.
eveything seems fine at 2T timings but just not at 1T :( (also 2x256 works fine at 1T )
anyway i know this is an age old problem but i just have no further ideas on how to solve it.
any further bright ideas would be most welcome
this mobo is really nice for cpu clocking
right now i'm undervolted to 1.25vcore down from 1.4 while still overclocked from 2.2 to 2.56ghz and all on the bog stock cooler. so that part is great but i would obvoiusly like to get the gig of ram to 1T.
but it really isn't the end of the world as i wont notice the 5% performance improvement anyway.
The same temperature drops when changing from old Ultra-D to rev. AD0.Quote:
Originally Posted by 4X4N
There is a temp offset between Smartguardian and the BIOS of 6C. Did you notice that too.
Marc
didn't notice much of a temp drop on my end.. went from 33/40c to 31/38c.. probably due to a better mount this time around
though one thing to note, this is especially directed towards steve.. my board has brown caps just like my .AC0 did. they're actually all brown except for the ones by the pwmic area
The largest variance i have seen on my board for vtt is 30mv. Only once though. Othre than that, pretty solid results, no more than 7mv-10mv.
IIRC EMC2 was getting 50mv-100(?) droop at some stage throughout the test 8. I think he also got 200mv at one instance.
Read this entire thread and I'm still stuck on this question:
If cost is not an issue and you were trying to get the absolute most out of a cpu and ram, like an Opty 170 @ 300HT 1:1 for example; would you recommend the Ultra-D AD0 or a new Expert?
Quote:
Originally Posted by krylon
Ultra-D, No doubt and you'd better use 1114 bios;)
that bios for dual core or will single core benefit tooQuote:
Originally Posted by Onepagebook
it's not bad hey....just realised my one is AD0 too :)
http://img108.imageshack.us/img108/2...htt32msup1.jpg
How much did you gain in overclock changing to the AD0 rev.?
Made in Taiwan better?
Cheers Monge :toast:
-;) -Quote:
Originally Posted by Monge
I have a NF4 Ultra-D rev. AC0. This board is the same that rev. AD0.
Pics.:
http://geocities.yahoo.com.br/thigob.../board_rev.jpg
http://geocities.yahoo.com.br/thigob...u/mem_reg3.jpg
Got an AD0 here, bought it a couple of weeks ago. Never owned an earlier revision so I can't really say if it's better or not. Are AD0's supposed to be made in Taiwan, because mine specificly says "china" on the box... hmm
They're made in both china and Taiwan, the latter being harder to find....Quote:
Originally Posted by masterofpuppets
Looks good.
With my Ultra-D A02 i can do 375MHz. I took this shot since few months ago, actually i made that just for fun :D . Of course, that was in single mode (with the strong dimm in a Patriot TCCD set), but i think is good HTT.
http://img493.imageshack.us/img493/3...esca7pk.th.png
A few days ago, i took the same stick, i could do a 400 MHz suicide shot, i just could boot with that frequency, no PI o other test.
http://valid.x86-secret.com/show_oc?id=74144
All that with R.A02 and 623-2 bios.
Are the Taiwan-built boards any better?Quote:
Originally Posted by s7e9h3n
not sure i never compared to earlier ones..........also i never really tried to find out the absoute max HTT.........but roughly in terms of htt i tested this one last night up to 425MHz HTT stable on 6xmulti..........i haven't tried loosening MAL any more CBFQuote:
Originally Posted by Monge
my first ultra d did 350MHz i think
my SLI-D did 375MHz
Expert does 400MHz easy i didn't even try more
and this one going past 400 no probs
i never tested RAM OC difference but stephen probably knows
one thing that is important when OCing is stable voltage regulation so i'd say you should be getting max clocks with boards like AD0 or Expert
imo, the max HTT of a board is a useless measurement. my old .AC0 couldn't get any ram over 306mhz, although i could easily break 425mhz htt... ;)
Vtt gross measurement is NOT the issue. The question is, are there any "glitches" or voltage spikes on the Vtt as there are on pre-AD0 boards.
Since the circuit looks the same, the only change that could be made to actually CURE the Vtt issue would be to use DIFFERENT value resistors as the terminator resistors.... that long line of resistors along the DIMMs. Instead of using say 47ohm, they could use 68ohm, and this would lower the MAX current the Vtt regulator would have to produce and eliminate the over-current spike the regulator was putting out under heavy load on pre-AD0 boards.
So, what is the answer. Can someone with a AD0 look at the resistor packs along the DIMMs and tell use what value they are using, and compare it to the pre-AD0 boards?
i can only compare an AD0 to an AC0, which kinda have the same layout, but they also have the same resistor values. the resistors are marked 470 along the top 2 slots, and 390 for the bottom two.Quote:
Originally Posted by uwackme
Does anybody know this?Quote:
Originally Posted by masterofpuppets