Phenom 9850BE low voltage overclocking results!

[fullinfusion]

LOL SIR in time my friend in time...

[jkatt12]

man i dont get how you guys are getting 3.1 at low voltage, i have to keep jacking up the voltage to even get 2.9 ! lol

tried combos of multi's and ht link settings, so far found a good spot to get 2.934 with high v's, temps went up to 140F tho running 3dmk06, even with a water cool setup and front window removed and a huge fan blowing directly on the system. memory is in ganged mode currently, does unganged make much difference? lol

http://www.xtremesystems.org/forums/...d.php?t=166222

Amd Phenom 9850 black edition
Asus M3N-HT deluxe
8gb g.skill ddr2 pc2 6400
pc power and cooling 750w crossfire edition psu
coolit freezone liquid cpu cooler
win vista 64bit ultimate

[jkatt12]

should i start messing with these other settings (im not sure what defaults are for these) :

cpu - nb multi - options 5 - 16x
cpu - nb voltage - 0.775 - 1.55
vdda voltage
memory voltage
nf200 voltage
1.2v ht voltage

[fullinfusion]

Na try and keep the voltage around and no higher then1.3625
try this
multi x14
ht multi x10
ht clock 215
nb volt 1.4000
that will give you a playable 3.01GHz

[jkatt12]

i'll try that definitely! thanks!!

stupid question maybe but, how do you tell if you are running at 5,200 mt/s? found this :


NForce 780a is, of course, compatible with HyperTransport 3.0, allowing the communications between the chipset and the CPU to be performed at a higher speed – if an HT3-based CPU is installed on the system, of course; otherwise, i.e. if you install a plain socket AM2 Athlon 64, the maximum transfer will be 2,000 MB/s. HyperTransport 3.0 maximum transfer rate is of 10,400 MB/s (this rate is also called 5,200 MT/s) but Phenom CPUs released so far have their HyperTransport bus working at 7,200 MB/s (3,600 MT/s) It is important to remember that since on AMD CPUs the memory controller is embedded on the CPU and not on the chipset this transfer rate is available for I/O transfers only.

[jkatt12]

http://enthusiast.hardocp.com/image....RfMl8zX2wuZ2lm

this is what my bios looks like, i dont see the ht multi, ht clock is the cpu frequency i guess?,
do see the nb chip voltage.

think i found the option under chipset submenu!!! thanks!!

******ok, i figured it all out, thanks!! lol

http://enthusiast.hardocp.com/articl...50aHVzaWFzdA==

[jkatt12]

The Chipset submenu contains options for configuring the chipset controlled devices, including the integrated video device and the HyperTranport bus. The speed of the HyperTransport bus is controlled via the K8<->NB Speed setting, with the speeds listed corresponding to multipliers based on a base 200 MHz CPU FSB. With a non-Phenom CPU in the board, this setting can be set to a maximum sped of 1.0 GHz, or a 5x multiplier. With a Phenom CPU, the maximum speed goes up to 1.8 GHz, translating to a 9x multiplier. The K8<->NB HT Width controls the HyperTransport bus bandwidth. For optimal system performance, it is highly recommended to set this option to 16 up and down.
--- above is from the article @ http://enthusiast.hardocp.com/articl...50aHVzaWFzdA==


Cpu volt - 1.3625
Cpu multi 14x
Fsb - 215
Nb chip volt - 1.400
K8 - nb ht speed - 1.8ghz = 9x (highest it will go) (found 2.0ghz so it does get that high)

that didnt work so i set nb chip volt back to auto, k8 - nb ht speed back to auto
and tried keeping the voltage at 1.3625 :
cpu multi - 14x
fsb - 215
cpu - nb multi - 10x
cpu - nb volt - 1.400

bsod each time.

[Kei]

Okay let's talk...you can only select a HT Link speed of up to 1.8Ghz on that board? According to the specs listed on newegg it has up to a 2.6Ghz HT Link rating just like the 790FX boards do. Of course our Phenoms out of the box are only rated for a 2.0Ghz rating, but you should be able to AT LEAST select that much. Are you sure the highest HT Link multiplier you can select is 9x and not 10x? Likewise what's the maximum Northbridge multiplier you can select (default should be 10x aka 2.0Ghz)?

Get back to me about that...

K

[CF]

Key if you havent read yet. He CAN'T with his current bios which does not support 98be.

yes there is 0702 which supports 98be but has other problems

Check asus forum...

best way to fix it is write to asus directly about bugs

[jkatt12]

here's the screenshot of exactly what my bios looks like. i found it, it does go up to 2.0 ghz, now set at that.
so ht multi is actually the k8 <> nb ht speed - 2.0ghz now.

i think either setting the nb volt to 1.400 is causing the bsod or the cpu multiplier @ 14 or the ht (cpu frequency at 215)and maybe voltage?
when you say set nb volt is that nb CHIP voltage or the CPU-NB Voltage? what about the CPU-NB Multiplier??

thanks! those arent my exact bios settings, found those screenshots on the net.

[jkatt12]

CF, not sure what you mean when you said my current bios does not support the 9850 BE??
where did you find that or how do you know? the board states that it supports AM2+ chips w/ 5,200 mt/s

just curious.

[fullinfusion]

yes your mobo supports the 9850 cpu... just make sure your bios is the 0702 ver.
check this link and you'll see your board supports the cpu
http://support.asus.com/cpusupport/c...Language=en-us

[fullinfusion]

There are always bugs in every bios that never seem to get fixed.. or when they fix a specific problem another seems to arise...
Seems Asus is a tad slow updating amd boards...because a vast majority of ppl are intel...
Bad move on Asus part when amd is finally getting things together...

[jkatt12]

ok, well my bios is at 501, couldnt find drivers for vista for my samsung usb floppy drive, it wouldnt find the 702.bin file from the c drive - says drive not accessible or not writeable, so i just bought 2gb sandisk and will try to update it when i get home.

dang!! lol

fullinfusion - any other settings suggestions? try the same again after the bios update maybe?

brt, wanted to apologize going off subject of Kei's original post, sorry dude! i'll start a new post.

[fullinfusion]

sure just finished stressing the system.
http://img.techpowerup.org/080508/ht.jpg
just set up in the bios
multi x13.5
HT Multi x9
HT ref clock (Fsb) 223
Cpu volt 1.3750
North bridge 1.40v
And be sure to lower the CPU-NB HT LINK from auto to 1.8Ghz
That will give you 2007 mhz On your hyper transport and 2230 mhz on your NB frequency..
follow this to the TEE and you shouldn't have any problems and let me know how it works for ya.

Also update your bios

[Kei]

No worries katt, we can keep it all in here as it's all still relevant anyway. I figured that your board supported (yea, I did read that which is why i asked) speeds higher than you had set at the time. Hopefully when the bios on these new boards mature (mine too of course) we'll get some more options and a bit more "stability/flexibility".

Of course my comment isn't aimed at you, it's to the guy who said I didn't read what you said...of course I did man it's my thread

K

[jkatt12]

well fuqeth me! i updated the bios! you cant adjust the cpu voltage now, it just shows auto and thats it, maybe it will auto increase voltage as i adjust settings. lol


after flashing the bios the pc would power on and off every 2 secs. wouldnt post to the bios screen!! DAMN! looks like a bad flash, i'll have to try to get it to boot into bios somehow, the switch didnt reset it so i guess removing the cmos battery. DAMN!!!

[CF]

jkatt12

check cpu compatibility

http://support.asus.com/cpusupport/c...Language=en-us


As for new problems i said to check forum becouse 0702 gives a lot of problems including vcore not changeable and cpu at 1.4V as auto...


Best way to fix them fast is to write to asus directly about bugs...

[jkatt12]

well its strange, everything was working perfectly fine until i updated the bios, i should have just left it alone. lol dont think its cpu compatibility if i didnt have issues before, only problem was overclocking was all just had to pump up the voltage which i got it up to 2.9ghz too.

i'll try to take out the cmos battery to reset it and take out a few sticks of memory when i get home.

[adrianx]

fullinfusion

124 PCI-x clock is not very high?

I need an advice.... from phenom possessors

OC from bios or from desktop with amd overdrive
?

[adrianx]

ahhh double...

[fullinfusion]

wow okay Kie no worries and as for the PCI express.!!!! go ahead and crank the shvt outta it and see what happens!!! can ya say corrupted hard drive? if your bios is that week then my bad for giving you a clock that works for me.
I've got 3.46GHz on air but as for doing any type of bench in it just isn't stable....Just need a H2O cooler...
Sorry i may have miss guided y'all....
Just giving ya friendly advice to what works and keep in mind that all ll CPUZ are NOT created equal!
Mate

[fullinfusion]

As for giving advise, I think I'll just keep my O/c to myself...
No worries mate but i wish ya the besta luck with your mobo and Brilliant CPU .... AMD ROCK'S!!!

[jkatt12]

re-flashed it, still it was powering on and off, really weird, seems like the psu is going out but its brand new, 1 mnth old. i removed 2 sticks of memory and that seemed to do the trick, but its still flakey but got it to boot. just dont get it!!!! i should have tried your recent suggestions before the bios update. lol seriously thanks for the info. before the update i was running
13x and 210 fsb @ 2.7ghz fully stable.

[jkatt12]

ok, finally, im up and running again, apparently the cmos battery went dead and didnt retain any of the bios settings. (i guess) seems stable now, reflashed the bios to vers. 6 instead of the 702. (thought that was the problem).