Well looks like I did it, 200FSB. Need help still, take a quick look.

[Lawsy]

Well, although it isnt fully stable (cant run prime95 torture for more than like 5 minutes) but i still managed it.

What i did was to set the jumper to 200 instead of 266/333.
Therefore when i up the FSB it ups the NB voltage a little more to compensate....

And with that, i finally broke through the 3g limit in memory bandwidth (i swear it though, im still not running duel channel, so i should be able to break 3 gigs with a 195 fsb (so i can run lower CPU core)....

But i have a quick question, why would the Vcore effect the FSB stability???

I have it set to 200x11, which is only 2200, a mere 42 mhz over stock......

So my temps are now about 2° higher at peaks, yet i still cant get a stable prime95 run with it.

I have heard of MANY A7N8X dlx run over 220 mhz FSB stable, no MB hacking, or CPU hacking. Why does mine struggle so much? I want to stretch its legs to about 205ish, but because i got a volcano9 ( should have waited a week or so to get a volcano 11+, would be able to push that little bit harder, would run quieter as well) i cant push it too far with these voltages otherwise my temps will go psyco....

BTW my current temp is 39 at idle but the fan is going 300 rpm faster.... Which is a little more noise (that 300 RPM breaks a certain noise threshold and so is more anoying now).

So, what can i do to make it more stable. I ran memtest86 and it passed with flying colours, so i dont think its the ram speed (thought it could be the timings).
Currently the timings are generous at 8 3 3 2,5 @ 2.7v
Core is running at 1.744 but is set to run at 1.725.... Ill give 1.7 another go later.....

Anyways, help us get the most from this.
Cheers

[Lawsy]

btw would getting the latest official bios for rev2 a7n8x boards make it run duel channel???? Im just thinking it could be the bios limiting it, because i am yet to see ANY messages to suggest duel channel is going (apparently a7n8x's say "Duel DDR feature enabled", haven't seen it yet) so i assume its off still, and im losing about 100mb/s (minimum) because of it......
Any thoughts?

[SecretFire]

Not all nforce2 boars are good overclockers...mine only does 185 :(

At only 42 mhz over stock, I also really doubt that it's the proc...I think your northbridge just isn't totally stable at those high speeds. Get the FSB up as high as you can, then just play with the multiplier.

As for dual channel, you'll need one stick of ram in the slot that's slightly further from the other two, and one stick of ram in one of the other slots. So check what slots your memory is in...dual channel enabled/disabled is automatic and is decided by what slots you stick the ram in.

[sandman001]

Originally posted by SecretFire
Not all nforce2 boars are good overclockers...mine only does 185 :(

At only 42 mhz over stock, I also really doubt that it's the proc...I think your northbridge just isn't totally stable at those high speeds. Get the FSB up as high as you can, then just play with the multiplier.

As for dual channel, you'll need one stick of ram in the slot that's slightly further from the other two, and one stick of ram in one of the other slots. So check what slots your memory is in...dual channel enabled/disabled is automatic and is decided by what slots you stick the ram in.

Acording to your sig, you have a T-bred A. Most likely if that is teh procesor you are tlaking about, it is that and not the motherboard holding you back.

[Lawsy]

I have tried every memory configuration but 1-2 for duel channel (all 4 of them, 1 - 3, 2 - 3, then reversed the chips (as in, changed there order).

But meh, its very stable @ 195 x 11.5. But im running 197x11.5 atm, though it wont go much more than 10 mins of prime 95, i think thats a heat issue under the cpu (where the HSF temp sensor is, it gets up to speed in 5 seconds, so it definately heats up fast under there) rather than an overall stability issue. And it runs 11x200 just fine as well, but again, doesnt get past maybe the 15th or so prime equation......

I dont mind now, changing that jumper has given me about 10% more overall system performace in windows, and a few more FPS in games..... It hasn't crashed yet, and i doubt it will....

I still don't know whether i should get the latest bios for my rev 2.0 A7N. I just don't know whether it will help or hinder, and if something goes wrong, then that will totaly screw me over (have to go in, get a new mb again, which just wastes so much time)....

Im guessing you should put you system in its most stable state (defaults of everything) before doing a bios update.....

But anyways.....

[altec]

You may want to up the chipset voltage if you have that option, it may be that the NB just needs a little more juice to be transferring data at 400Mhz...If that doesn't work, I'm ata loss.

[Lawsy]

I think that means a new bios, my bios is the standard 1002 that comes with all new a7n8x build before april this year. Mine missed out on the standard 1003 (i have heard) by a week or so.
Wish i new about all this barton stuff.... Would have found a Barton 2700 (do they exist?) if i could and it would probably clock better.....

So you reckon go a better bios???

[altec]

Yes, I would try updating you BIOS, and playing with voltages a little to see if anything just needs a little more juice. Also go over to the Asus AMD Motherboard Forum and ask them there if anyone has had the same problem, I'm sure someone will have an answer.

[Lawsy]

ta mate, will do.