250 FSB DC SYNCH and ABIT NF7-S

I believe MickeyMouse was talking about having both CPU Fast decode + 128bit DC all at the same time. There are only very few people that can do 245~ 250 FSB with all these enabled. Everytime when I compete with others who have higher FSBs than I, I beat them in the benches. Most of them people disable Fast CPU decode to gain more FSBs. Dual Channel isn't the only thing here. Having both enabled is what makes it difficult and challenging. There is no such thing as "free". You will have to give up some to get some. I really am not trying to offend anybody here but I really thought I should point this out.


250mhz FSB DC + FastCPU decode + 128bit DC, here it is:


No, this is not mine. This is the member "Learn" who achieved it several months ago. And that's with Tbred chip, not the Barton.
http://membres.lycos.fr/ftpad/images...fsb250.57R.png

I guess I can't try that as I have hyperX ram... Unless I'm mistaken the incompatibility was only fixed with 1.4 or something like that... :(

like this

http://digilander.libero.it/DirtyPunker/250DC.jpg

a-data pc3200 + v-data pc2700
3.15v, 7-2-2-2.5 DC Cpu int Enable
VDD 1.7v

but don't know why i have 10mb/s less... probably v-data pc2700 is a little slower than xms pc3500..

I haven´t tried the 1.0 yet, but with 1.6 i can run:

240 2-2-2-11/5
246 2-3-2-11/5

this is with stock NB cooler, DC and only 1.6vdd.

If i try 250 (no matter what timings) it just reboots, and im pretty sure its my RAM holding me back. 2x256 Twinmos /m Winbond BH5 which i paid 30$ for each a few months ago, so at that price i dont complaint.

Need some faster memory, but where to find it :confused:

Quote:

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Originally posted by Formann
I haven´t tried the 1.0 yet, but with 1.6 i can run:

240 2-2-2-11/5
246 2-3-2-11/5

this is with stock NB cooler, DC and only 1.6vdd.

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Hmm. The 10 didn't cut it for me :(

But I am stable with the 18 :eek: at 11,5x240 2,0-11-2-2

But I absolutely cannot believe you only needing 1,6vdd to do 240 dual channel 3d stable :rolleyes:

P.S. What does the /5 mean you wrote behind the timings?

Very nice :toast:

I can do 250MHz stable enough for all kinds of "cpu/mem-tests" too.. Prime/spi/pifast and so on. 3D on the other hand is a completely different story. Not sure if my setup can do it at 250 at any cpu-MHz but it sure can go a lot higher on the FSB when the CPU clock is lowered.

Also I agree that bios 10 is a very nice version ;). Using beta 14 atm tho.. that one and 10 are the best in my experience (havent tried the newest ones though).

Im using some bh-5 mem myself and they can take any timings at 250MHz with no problems at all. As long as Vmem is about 3,1V+ or so.

Quote:

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Originally posted by MickeyMouse
yeah the fastest Ive ever seen 3d like 2k1 completed with a highend vc oc'd and a cpu above 2500mhz has been like 242mhz dc at max timings.. I think all this 250mhz is crap if your system can't compltet 3d then its not stable.. thats what some of these guys ever better than me have been pullzed on for a while now.. 250mhz dc prime 238mhz dc 3d :(

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I agree.. either your stable, or your not stable. When i say stable i mean, 3d stable, prime, super pi etc. If it aint ROCKstable, it ain stable..

SAE: Most find it hard to believe.. i was pretty surprised myself...but its the truth, and you dont hear me complaining :D

Quote:

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Originally posted by MickeyMouse
lets see 3dmark 2k1 above 241mhz dc at max timings tho M8?? with a very oc'd VC and a multi over 10x???? if not its a joke but very nice oc there anyways :)

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Thats a little harsh isn't it J ?

Quote:

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Originally posted by saaya
it killed the board of a friend ;)

well he needed a new bios chip that was all... i really wonder why your board is still working... :stick: are you sure its the 1.0 bios? where did you get it? i heard of 2 other people already who tried to flash their 2.0 boards to 1.0 and they board wouldnt post after that...
please post a link, i wanna try that bios when i get my nf7-s 2.0 back.

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I think it depends on what bios comes shipped....... once you flash 14 or above they say there is no going back, but there are workarounds for that (force- and I THINK WINFLASH works also ).
I have a 2.0 and flashed to 10 and haven't had any problems, then again my board came with 12, so there shouldn't have been any.
My first 2.0 came with 11 and I flashed to 10 ...there were no issues there either.

I can't believe it, i did litterly everything to get 240 FSB stable, but still no joy.
Here's the list:

Flashed to bios d10
Modded 3.3V on PSU up to 3.44V
Vdd modded, up to 1.92V
Vddr modded, up to 3.23V
Sinked mosfets and SB
Lapped NB and put Crystal orb on
Tried Twinmos BH-5
Tried Twinmos PC 3700
Bought new PSU, thought that my Qtec 550 didn't cut it.

Did i miss something?
It just won't let me do 237 or higher stable...
I'm leaning towards the idea that somehow it must be either the CPU or the mobo.

Any idea's? I'm all out. :(

very nice job mult 10 will be very very nice :toast:

Jason, i tried bios 18 but if i got somewhere around 230, my system locked up at opening any app. every time.
Increasing Vcore didn't help here.
Unfortunately my CPU is at it's max with 11x230, so i have to make do with multi 10 or 10,5 for real high FSB
Don't know about more Vdd, look at the one who started this thread (Dagalidis), he only runs 1.75Vdd... :confused:

Quote:

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Originally posted by MickeyMouse
lol, ok and the 1000+ users amd the old "credited" members like me and SAE and so on all using 2v+ :rolleyes:

2% use under 2v for 236+ I have 172w tec cooled three and had to have 2-2.15v for 240+ and the back of the chipset was at -17c load ;)

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You got a point there mate, but to run over 2V i think i need to improve cooling like you suggested, a pelt would be nice...

That's right, guess i'm never lucky when it comes to pickin hardware, my target was to get 240 stable at least but if the board doesn't cut it i have to live with that.
No point in getting another one wit the A64 around the corner..lol
How high can you get your current rig FSB wise?

Neither would i if i could get 236 perfectly stable... ;)
I will try some more, maybe i'll increase Vdd some more but for now i'm done.
I've got some time left to improve on my setup before it's A64 time. :)
Do you think multi 11 and higher are more stable than 10,5 and lower?

lol 12 is way too high for me, 210x12 won't get me very far i guess.

OK I've been very hesitant about flashing to bios 10. I was running bios 18 10.5 X 230 2,3,3,11 100% stable. I flashed to 10 and now running 10 X 240 2,2,2,11 100% 3D Mark stable. and this is with no vdimm mod. I know it's no big deal, but it's sure is better then 18.


oh well here's hoping for more....

10 bios was the trick for me. I could get 230 stable with 18 or 14 and 240 with the 10. Too bad I screwed that board up trying to do the vdimm mod. @ 240 I should have just left it alone but I had to try to get just a little bit more! I also saw an erlier post asking if you could go back to 10 from 18. My board came with 18 and I used Awardflash with parameters " /cc /cf /ff " and it flashed back to 10 with no problems.

hi guys,

am new to abit... i just got my abit nf7-s rev. 2. from abit site i see three flash utilities :

1. Abit Flash Menu
2. Abit Flash Utility v8.23k
3. Abit Flash Utility v8.24F

which flash utility do i need to flash back to 1.0? my board came with the 1.8 bios.

Thanks

My mate on the forums here Ragnarok can prime and 3dmark at 243fsb 2-5-2-2 with CPU Fast Decode on with his 2x 256meg XMS3500 Rev 1.1 and 3.05vdimm on an NF7-S Rev 1.2

Ill get him to post his results :)

ps
Might be 241 or something, but I do know it was over 240....and with 1.7vdd and iirc, default NB cooling :banana:

anyone can get 250mhz stable??

because i can get up to 246mhz 11-2-2-2 and seems prime stable, but at 250 doesn't matter how many vddr (up to 3.26 with vmod, over 3.26 it's too much unstable, change from 3.14 to 3.3v...) or vdd i set (up to 1.96v with vmod) but nothing work...
at 246 i set vddr at 3.17v and vdd at 1.8v
i have also chipset watercooling with 3° water
so 246 seems prime stable (never tested a lot) and 250 won't do sandra memtest!!!! :rolleyes: :mad:

any advice?

i am 90% stable at 250sc 2-2-3-11 with my twinmos 3700@3.3v and 1.75 vdd. i can run all benches and proggies and games, but prime and other stress tests make the system crash after some time. i guess i can run dual channel, but my khx 3500 doesnt run 250 even with bad timings and 3.6v...

a7n8x deluxe rev2.0 btw

Quote:

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Originally posted by Dirty_Punk
anyone can get 250mhz stable??

because i can get up to 246mhz 11-2-2-2 and seems prime stable, but at 250 doesn't matter how many vddr (up to 3.26 with vmod, over 3.26 it's too much unstable, change from 3.14 to 3.3v...) or vdd i set (up to 1.96v with vmod) but nothing work...
at 246 i set vddr at 3.17v and vdd at 1.8v
i have also chipset watercooling with 3° water
so 246 seems prime stable (never tested a lot) and 250 won't do sandra memtest!!!! :rolleyes: :mad:

any advice?

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Well i don't think you have much reason to complain, now do you?
246 stable is one hell of an achievement! :slobber:
There aren't many that have ever gotten 250 stable i reckon.
The only thing i can think of is heatsinks on your mosfets if you haven't done that already, or increasing your 3.3V rail.

Check out this thread, it makes some interesting reading:

http://www.xtremesystems.org/forums/...0&pagenumber=1

Can you do 3D mark at 246MHz??

im sure i can do 255dc or even higher but i need better ram :(

sweetness it seems you and i are on the same page. The minute i turned my sistem on i proceeded to go up to 250fsb and later started playing with 10x246 what processor are you using? again i used a 2600

AWSOME!!