I'm on a 8RDA+ too.. so.. 8-)
Maybe i'll have to do a "burnin" on my northbridge when i've got something around for backup.. heh.
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I'm on a 8RDA+ too.. so.. 8-)
Maybe i'll have to do a "burnin" on my northbridge when i've got something around for backup.. heh.
Just talked to an Abit rep, and it has been confirmed - I now hold the world record for the highest nForce2 FSB!:toast: :banana: :banana: :banana:
Congrats dude!!! :toast:Quote:
Originally posted by xDUCK
Just talked to an Abit rep, and it has been confirmed - I now hold the world record for the highest nForce2 FSB!:toast: :banana: :banana: :banana:
The sisoft will be very bad thou :)
at 8x multi, it isn't performing as good as at multi 11x or higher
3700mb/s will be a nice score :)
XDuck, curious
Can you bench at 266 FSB?
Whats the highest you can bench?
Whats the highest you can remain stable at?
Edit: Double post, just skip to next msg. :)
Well, at 262 2-2-2-7, I got 383x... ;) So 266 2-2-2-11 should be much better :).Quote:
Originally posted by Epsilon
The sisoft will be very bad thou :)
at 8x multi, it isn't performing as good as at multi 11x or higher
3700mb/s will be a nice score :)
As for benching, I didn't try to bench at 266, because the way I OC it is I raise FSB, apply, wait for voltage readings (to make sure they're stable, and that I'm not changing FSB while voltages are dipping), take a screenshot, and repeat the process. I was trying to hit 270 on this attempt, but I froze up when going to 268. It seems the RAM needs more voltage (had the same problem before at lower vdimm, once I raised it, I got more headroom). I'm sure I will get the itch one of these days to go for 270, but for now I will enjoy my reign and try to keep this board as safe as I can. ;) (don't want to kill it with the 2.15v VDD I run through it while benching).
IIRC, I also have a 260FSB 3dmark run saved. :) But that was at a mere 3.44v Vdimm :D, so I'm sure I'll be able to bench higher now.
Since I can easily POST up to 275, I know for a fact that this board has plenty left in it. We'll just have to wait and see how much. :D:toast:
Dude nice results you got there,
I hit a brick wall @ arnd 252mhz whatever the timings whatever the voltages. The wall im hitting is also independent of what sticks ive got in i.e i can hit 252mhz with 3 sticks in and 252mhz with 1 stick in.
Voltages are 3.6vdimm and 3.6v for 3.3volt rail. Vdd is @1.9volts, nthbridge cooled with crystal orb. With your experience with your brd would you say that nthbridge cooling with you copper pipe make a difference? Im a bit baffled to what the bottleneck on my system is. Me thinks that i need more vdd but need the cooling to go with it. Will find out at Christmas time when i get some water on this setup then u better watch out i will be after your record
;)
mongoled
That is a nice board. I am jealous. My poopy 8rda+ only managed 205 mhz fsb in single channel with 2v vdd. It was monkey poo. Keep up the good work.
If I had 3.5v on tap i'd run it through my ram 24/7.. heh..
Those lower multi's are something else. I was never able to go past 235fsb before with cpu interface disabled and a 4/3 divider on the ram. Set my 2500 to the 8 multi and had no probs until 255fsb with cpu interface on and dual channel with 2x512mb running the 4/3 divider. At that point prime95 would pass but memtest(win32 based) failed. I had tried different dividers on the ram before just to see if my ram was holding me back with no luck. I now know for sure this chip can take the fsb but this motherboard sure can't when the cpu asks for too much juice.
I hope that AN7 can do better than this.
I can effortlessly do 250x10 at 1.95v VDD. ;) So I'm sure I could go higher, even without the 8x. It's just the nVidia System Utility that's holding me back.Quote:
Originally posted by Poki
Those lower multi's are something else. I was never able to go past 235fsb before with cpu interface disabled and a 4/3 divider on the ram. Set my 2500 to the 8 multi and had no probs until 255fsb with cpu interface on and dual channel with 2x512mb running the 4/3 divider. At that point prime95 would pass but memtest(win32 based) failed. I had tried different dividers on the ram before just to see if my ram was holding me back with no luck. I now know for sure this chip can take the fsb but this motherboard sure can't when the cpu asks for too much juice.
I hope that AN7 can do better than this.
xduckx, you have one rare board. Too bad these XP chips didn't take advantage of real dual channel ehh?
Indeed! I get 500 points from DC over SC in 3dmark.:rolleyes:Quote:
Originally posted by Poki
xduckx, you have one rare board. Too bad these XP chips didn't take advantage of real dual channel ehh?
Yes, as most of the gains with dual channel on the NF2 are made by hardware devices that have direct memory access. On a P4 or A64 system everything has access to the memory bandwidth in cluding the processor. It's just a limit of the Tbred/Barton design.
If we're lucky that new Via chipset will be more effecient. *fingers crossed*
This is taken from an article by DMOS @ Dev Hardware (formerly OCAddiction).....
Quote:
Now, for the platform dependant part. Think of a highway yet again, this time an 4 lane wide one, representing a dual channel DDR configuration. Now suppose that highway comes up to a bridge. If that bridge is also 4 lanes across, then there is no choking off of the data, it can all ramp smoothly onto and over the bridge. This is what occurs in an Intel Pentium 4 configuration. That bridge is the FSB. Because a P4's FSB is "quad pumped" for data (it's only "double pumped" for addresses though, which are much shorter), it is capable of bringing all that data from the 128bit channels right in. What "quad pumped" means, is very similar to the DDR improvements I mentioned earlier. Only this time, data is sent twice on the rising and falling edges. Pretend the signal voltage is 1.5V. When the voltage reaches 0.7V, data is sent, and again when 1.5V is reached. On the down slope, the same thing occurs, data sent at 0.7V and 0V. This explains why the P4 architecture is such a bandwidth hog. When using a single memory controller configuration, like the i845 chipset, or a i865/i875 with only one channel being used, the FSB is capable of sending much more data than the memory controller can bring in from the ram, causing inefficiency.
This situation is quite the opposite for a system based on the Athlon XP architecture. Again, think of our 4 lane highway, representing a dual channel DDR configuration. This time though, our bridge is only 2 lanes wide. This is because the Athlons' FSB is only capable of DDR equivalent performance. So that second channel goes to waste, as you cannot force all the cars through the bridge at once. The only time this comes in useful is when latencies inhibit the RAM from performing as fast as the FSB is capable of taking in data... which leads nicely into the next section.
kinda takes the wind out of my sails gotta try that nv utility on my nf7s,works great on the gigabyte.
So U have no advice for me xDUCK
:(
mongoled
thats amazing, still not #1 though, a japaneese guy got his a7n8x to 270 :D
maybe that special burn in helped? :D
Very nice indeed xDUCK! congrats m8:D
Thats some 60Mhz better than where my NF7-S v1.2 maxed....
sorry but i've done betterQuote:
Originally posted by xDUCK
Just talked to an Abit rep, and it has been confirmed - I now hold the world record for the highest nForce2 FSB!:toast: :banana: :banana: :banana:
http://digilander.libero.it/DirtyPunker/270DC.JPG
thi is a shot with a stock coolink and no mod NF7 V2.0, without using any soft/oc, with bios 18 and pc4000 ram
yes, timings are 3-4-4-8 and cpu interface disable, but if you are talking only about fsb this is a better result, considerting that in these conditions the sys can load windows
jepp and i think this japaneese guy got 277 and could still run pifast
as if this abit guy knew all the ocs of nf7-s boards :P
yep, at 270 i can't bench at all :D just enter in windows and do a shot, but hei, it's a all stock nf7!!! vdd at 1.6v (1.7 give worse results) and nb with stock coolingQuote:
Originally posted by saaya
jepp and i think this japaneese guy got 277 and could still run pifast
as if this abit guy knew all the ocs of nf7-s boards :P
unfortunatelly after that i try to mod the board, but i'd find that this board doesn't accept any type of hight voltage, so nothing over 2.9v for vmem, nothing over 1.9v for vcore and also nothing over 1.6vdd and 1.5vagp... so it's a very unlucky board, but with great NB potential...
only 1.6v vdd? nice! and are you sure it doesnt like high vdd? weird, the japaneese guy was running 2.1v vdd and i think he had a pelt on the nb.
what vdd mod did you try? what happened if you raised the vdd to 1.7v?
on my a7n8x i dont really see a diference with higher vdd either, it does 210 primestable with 1.6 vdd and with 1.65v i get 235, but not even 2v help me to run primestable with 240... i can play games for days (lan :D) at 245 with only 1.65v vdd and air cooling on the nb, but prime fails after some hours...
y
hmmm maybe its my memory? hmmm could be! lol i never thougt of that :P i can play games and do everything except for prime at 245 and even 250 but could it be that my memory gives me small errors above 235 already so prime fails but everything else just ignores those small errors?
my friend catn do more than 203 with stability tried 1.6 to 1.8 vdds and with my khx3500 which can do 490 2-2-2-5 his mobo is chaintech 7njs do you any advice for that yes i know this thread is nothing to do with this problem but as you started talking about fsbs and vdd i just wanted to ask :) i am very noob at amd :)