Phenom 9950 Overclocking

[Daveburt714]

The most impressive thing for me is the Ram. 5-5-5-15 Ganged, For some reason i can OC higher being Unganged but it cuts my pro. down a bit.

Just for reference... Ganged mode will usually give you a little better OC, it's kind of odd that you can clock higher in Unganged, but every chip has it's own personality.

In General, Ganged Mode will give you better performance in single threaded apps, and Unganged will offer better performance in multi-threaded.

I pretty much stick with Unganged, but I tend to do alot of things at once.

[mongoled]

Note: find where to adjust the NBchipset volts ...SB600 you can raise to 1.3v- 1.32v(safely) for added stability if you decide to raise the Ram Freqency or run tighter timing in most cases.

Your running 4gigs so that alone stresses the IMC/NB vs running 2gigs..
Raising nbchipset volts helps it perform in that department

Thanks for that tidbit of info in this thread, ive been struggling to stabalise my CPU at 3.2Ghz.

Can run prime95 small FFTs for hours, however running in normal mode CPU2 croaks after 15-45mins. I am also running 2 x 2GB, increasing CPUvid / NBvid is not making it more stable.

Will try to increase the NB Core voltage (this is the NBchipset volts you are refering to??).

Oh and great results in this thread, I keep saying going to stop tweaking as Phenom II is coming, then I keep seeing what goes on in this thread and get distracted again, LOL

[RASTAVIPER]

I am trying to reach some high clocks with my 9950, but I see strange things..All other people can set high multi's, but mine system seems to not like this.
I can reach 3.689, with 15,5x238, 1,55vcore 1,33nb.
If I try 16, 16.5 or 17 multi, my pc reboots and cannot enter windows with bus over 210..
Any ideas?

[felix_w]

had to up the voltage no where near stable at 3.4 around the 1.35 - 1.385 range

up to 1.4v on CPU and needed to drag the NBV up to 1.365

1 pass so far so good =D

Very, very, very nice....hell of a chip you got there

[gOtVoltage]

I am trying to reach some high clocks with my 9950, but I see strange things..All other people can set high multi's, but mine system seems to not like this.
I can reach 3.689, with 15,5x238, 1,55vcore 1,33nb.
If I try 16, 16.5 or 17 multi, my pc reboots and cannot enter windows with bus over 210..
Any ideas?

Loosen your ram 4-4-4- is too tight for now ,,

phenom likes 5-5-5-15 or higher for high freqencies. or 4-4-4-12 for using low freqencis 400/533 under 800mhz total..The biggest thing that will hold you back is tight timing and trying to exceed your ram clocks. This is why you set those two variables low when clocking the CPU higher(High CPU multi try with 800 then 667 then 533.. Sometimes the ram multi needs to be lowered when using high CPU multi..



You can lower the timing back down after you find that CPU sweet multi. Keep NB around 2000mhz for now and try ganged mode with auto timing for starters while manually using 2T. What ever Ram divider you want.. Set Ram to Maxclocks or manual but keep the timing parimetes on Auto and use 2T setting.

Thanks for that tidbit of info in this thread, ive been struggling to stabalise my CPU at 3.2Ghz.

Can run prime95 small FFTs for hours, however running in normal mode CPU2 croaks after 15-45mins. I am also running 2 x 2GB, increasing CPUvid / NBvid is not making it more stable.

*****Will try to increase the NB Core voltage ******(this is the NBchipset volts you are refering to??).

Oh and great results in this thread, I keep saying going to stop tweaking as Phenom II is coming, then I keep seeing what goes on in this thread and get distracted again, LOL

Need more Volt info..
Can you download in instal HWmonitor..post a screen shot for me. http://www.cpuid.com/hwmonitor.php


Current Vids( and IDLEtemp ? Load temp?

Before we proceed

Im looking up YOUR mobo's features,,Hmmm MOBO,,no sig Hmmmm,, cant give to much info,, if i dont know what mobo to go by.


Prime not be used for extreme amount of time on SB600,unless you can keep the PWM's cool
In particular PWM's found with SB600 MOBO's is affected the most.

Prime will Make the PWM'S heat up alot with even moderate volts. Even more so the higher the Volts and the Mobo thus affecting your CPU, Trust me on that.

So if you prime,, watch the PWM temps. A CPU can lose voltage once the PWM's start overheating(core failure ) up and to a certain extent the PWM's can blow(

BIG NOTE:
Ive maxed several Mobos testing 770/780/790/GX/FX SB600/SB750 with Prime and this 9950 @3.4/3.5ghz @ 1.65+volts using 1.55vid for CPU and NBvids and even over 1.65volts...
SB600 is know to cook PWM'S with Prime and 2.6ghz @anyvolts given enuff time..With that said , use Prime sparingly

Priming 8hours will give my 79-T a pretty decent heat stroke @3.5ghz.
Even though My CPU is stable.

P.S. get me screenshot and i can go from there .

[Chicken Patty]

things are looking darn good for the next gen. of 45nm Phenom II's


http://www.theinquirer.net/gb/inquir...-phenom-ii-ghz

[demonkevy666]

Loosen your ram 4-4-4- is too tight for now ,,

phenom likes 5-5-5-15 or higher for high freqencies. or 4-4-4-12 for using low freqencis 400/533 under 800mhz total..The biggest thing that will hold you back is tight timing and trying to exceed your ram clocks. This is why you set those two variables low when clocking the CPU higher(High CPU multi try with 800 then 667 then 533.. Sometimes the ram multi needs to be lowered when using high CPU multi..



You can lower the timing back down after you find that CPU sweet multi. Keep NB around 2000mhz for now and try ganged mode with auto timing for starters while manually using 2T. What ever Ram divider you want.. Set Ram to Maxclocks or manual but keep the timing parimetes on Auto and use 2T setting.




Need more Volt info..
Can you download in instal HWmonitor..post a screen shot for me. http://www.cpuid.com/hwmonitor.php


Current Vids( and IDLEtemp ? Load temp?

Before we proceed

Im looking up YOUR mobo's features,,Hmmm MOBO,,no sig Hmmmm,, cant give to much info,, if i dont know what mobo to go by.


Prime not be used for extreme amount of time on SB600,unless you can keep the PWM's cool
In particular PWM's found with SB600 MOBO's is affected the most.

Prime will Make the PWM'S heat up alot with even moderate volts. Even more so the higher the Volts and the Mobo thus affecting your CPU, Trust me on that.

So if you prime,, watch the PWM temps. A CPU can lose voltage once the PWM's start overheating(core failure ) up and to a certain extent the PWM's can blow(

BIG NOTE:
Ive maxed several Mobos testing 770/780/790/GX/FX SB600/SB750 with Prime and this 9950 @3.4/3.5ghz @ 1.65+volts using 1.55vid for CPU and NBvids and even over 1.65volts...
SB600 is know to cook PWM'S with Prime and 2.6ghz @anyvolts given enuff time..With that said , use Prime sparingly

Priming 8hours will give my 79-T a pretty decent heat stroke @3.5ghz.
Even though My CPU is stable.

P.S. get me screenshot and i can go from there .

my highest multiplier is 14.5 any higher I need like crazy volts above 1.6 (I can't afford water cooling nor can my case fit it.)

so I set 1.45 votls in on AOD (ACC at 8% CPU, VDDA 2.8) get up 2.9ghz just fine stable, next I from 200-207 to get 3,0001.5mhz stable in windows for like hours, even threw games. Then I want and set the same thing in the bios same as AOD settings. The thing failed to boot at all >_<

edit: update 6-6-6-18 seem to be much fast then 5-5-5-15 even at the same speed (800mhz)

[Chicken Patty]

Ok guys, I need some help here.

I can do 3.2 Ghz 100% stable at these same settings, but when I raise the FSB a bit more to 3233 MHz I have core 4 fail a the stress test everytime. See the screenshot below and see if you guys can give me any tips.

ACC on core 4 at anything above +4 gives me a BSOD on bootup. If I set it to a negative setting, it just won't pass POST. Any advise???

[Daveburt714]

Chicken Patty: Have you tried going +4/4/4/6?

I don't know if it will help or not, but I've had alot of random problems when I get ACC more than 1 step apart. You could also set the bad core down .5 on the multiplier, but that's not really a graceful solution...

[leoy]

I have the exact same problem chicken patty...
I think it is your chip's limit.
Mine does this at 3.250 exactly, after that whatever i do(even high volts) doesn't make it stable...

[Chicken Patty]

Chicken Patty: Have you tried going +4/4/4/6?

I don't know if it will help or not, but I've had alot of random problems when I get ACC more than 1 step apart. You could also set the bad core down .5 on the multiplier, but that's not really a graceful solution...

I have done 4/4/4/6 and it doesnt boot, neither 4/4/4/8 etc.

[Chicken Patty]

I have the exact same problem chicken patty...
I think it is your chip's limit.
Mine does this at 3.250 exactly, after that whatever i do(even high volts) doesn't make it stable...

Yeah bro, I think its the chips limit. Sucks!!!!

[merkk1]

I was trying to work along the same line of though for ACC setting but what ended up working for me was just to set them all to +6% than i was able to boot to windows .Now i also took every fan off the mother board and move them to a front IO to run them with so power come to them throught the power supply and not the mother board .It was only after i did this was i able to get +6% ACC setting to work .I was never able to get my 9850 to run stable at 3.2 till i was able to get the +6% ACC setting to work .I don't know if that with help you CP but that what happen to me with my A79A-s mother board .

[Chicken Patty]

I was trying to work along the same line of though for ACC setting but what ended up working for me was just to set them all to +6% than i was able to boot to windows .Now i also took every fan off the mother board and move them to a front IO to run them with so power come to them throught the power supply and not the mother board .It was only after i did this was i able to get +6% ACC setting to work .I was never able to get my 9850 to run stable at 3.2 till i was able to get the +6% ACC setting to work .I don't know if that with help you CP but that what happen to me with my A79A-s mother board .

Well, right now I just disabled two core and I guess the week one got disabled LOL.

So I will give it a few shots at overclocking, see what it can do. But yeah, this will keep me busy for now until Phenom II comes out

[demonkevy666]

if your running High ACC you should try pushing the CPU VDDA up to 2.8.

I've had mine boot to windows up to 12% but I got a bsod about index miss match.

[Chicken Patty]

if your running High ACC you should try pushing the CPU VDDA up to 2.8.

I've had mine boot to windows up to 12% but I got a bsod about index miss match.

Ill try that tonight, maybe upping the vdda helps. Thanks dude.

[gOtVoltage]

Yeah bro, I think its the chips limit. Sucks!!!!

No way ,, heheheee

AOD is setting your VID and Voltage the same..
in your Bios it will not be the same...

If you manually set the Bios make shure AOD is not loading your AOD overclock! Or it can fail at boot..



please try this,,


Turn ACC off and use 2.8vdd

corepcie and HT to 2.8v

use 9x223 ht = 1998mhz

using same Ram and Cpu divider only change (HT to 9 instead of 8).


The main thing Make the NB and CPU Volts are the same ,,You also need to raise CPU/NB voltage up two more steps for it to = what AOD and ACC that you had..

In AOD it will usually show your VOLTS and VID as the same when in reality the Volts are higher in BIOS to get the SAME VID VALUE AS IN AOD

your CPU is @ 1.42vid which is about 1.50-1.55volts in Bios if i remember correct.

Make the NBvid the same as CPUvid then try too boot NOT using ACC or AOD with the values i posted above..

Your temps should stay about the same even under load trust me..

If you want i can set my Bios to the EXACT Multis and Volts that you are using ..The only things is i wont use AOD and ACC to set them..

I know that chip of yours has more..AOD is simply showing lower VOLT/Vcore values than what the Bios should and Will actually run at.

VID is always lower than the actual Volts used from what ive seen in the ASUS bios.

ill load AOD and My Bios screen in afew ..have to reconnect my 9950system,, On brothers PC ATM.

[Chicken Patty]

No way ,, heheheee

AOD is setting your VID and Voltage the same..
in your Bios it will not be the same...

If you manually set the Bios make shure AOD is not loading your AOD overclock! Or it can fail at boot..



please try this,,


Turn ACC off and use 2.8vdd

corepcie and HT to 2.8v

use 9x223 ht = 1998mhz

using same Ram and Cpu divider only change (HT to 9 instead of 8).


The main thing Make the NB and CPU Volts are the same ,,You also need to raise CPU/NB voltage up two more steps for it to = what AOD and ACC that you had..

In AOD it will usually show your VOLTS and VID as the same when in reality the Volts are higher in BIOS to get the SAME VID VALUE AS IN AOD

your CPU is @ 1.42vid which is about 1.50-1.55volts in Bios if i remember correct.

Make the NBvid the same as CPUvid then try too boot NOT using ACC or AOD with the values i posted above..

Your temps should stay about the same even under load trust me..

If you want i can set my Bios to the EXACT Multis and Volts that you are using ..The only things is i wont use AOD and ACC to set them..

I know that chip of yours has more..AOD is simply showing lower VOLT/Vcore values than what the Bios should and Will actually run at.

VID is always lower than the actual Volts used from what ive seen in the ASUS bios.

ill load AOD and My Bios screen in afew ..have to reconnect my 9950system,, On brothers PC ATM.

yeah but when I run a stress test, only one core fails while the others chug away just fine. Even if I set by the bios and not AOD, I just had AOD open so you can see some of the voltages settings.

I'll give the settings above a try however and see how it goes later when I get back as I gotta go out for a moment now.

[gOtVoltage]

yeah but when I run a stress test, only one core fails while the others chug away just fine. Even if I set by the bios and not AOD, I just had AOD open so you can see some of the voltages settings.

I'll give the settings above a try however and see how it goes later when I get back as I gotta go out for a moment now.

Ok here this is what i was trying to say ,,Look close at AOD and my Bios settings ,,

NotE: im using ACC +2 in BIOS ,,The BIOS screen is exactly wha tim running...i did not enable AOD ,,Notice how the VID and Volts are differnt......

If your Overclocking VIA AOD and want to set the Values in your BIOS you must use slightly higher VCORE values ..Look at my VID's and Voltages..

L@@K the voltage Should not the same as the VID..It never should be..

ACC is setting wierd Volt value for your CPU ,,It should be raising you Volts above VID's but its not _ CPUvcore value should be + volts above the Vid if your ADDING with ACC. Hmm maybe This can be ACC not adjusting the VCORE properly when you are setting +6 values...+6 dosnt even work with my chip...I think its ACC buggyness..

BIOS SETTINGS 602Bios





AOD 2.14,,,,,

NOT using AOD to SET OC..

Im using my BIOS settings,,
I suggest that when ACC is enabled you use +2 on all cores then Adjust your CPU/NB vcore untill sytem is stable ..Also make shure your HT link is 2000mhz not more..you can have Higher NB if you wish but the ASUS79-T likes 2000HT with the 602bios..on the 302 and 403 its more friendly on HT settings..

[Chicken Patty]

gOtVoltage

You have been extremely helpful on this dude, but this chip just won't do more. I am doing everything by the BIOS and no matter how much voltage, what I do this chip wont boot at past 3.4 Ghz. The most it is stable is 3.213 Ghz. Totally different from my 9850, that chip was awesome, never said no, but this one is a damn p**sy

[mongoled]

Need more Volt info..
Can you download in instal HWmonitor..post a screen shot for me. http://www.cpuid.com/hwmonitor.php


Current Vids( and IDLEtemp ? Load temp?

Before we proceed

Im looking up YOUR mobo's features,,Hmmm MOBO,,no sig Hmmmm,, cant give to much info,, if i dont know what mobo to go by.


Prime not be used for extreme amount of time on SB600,unless you can keep the PWM's cool
In particular PWM's found with SB600 MOBO's is affected the most.

Prime will Make the PWM'S heat up alot with even moderate volts. Even more so the higher the Volts and the Mobo thus affecting your CPU, Trust me on that.

So if you prime,, watch the PWM temps. A CPU can lose voltage once the PWM's start overheating(core failure ) up and to a certain extent the PWM's can blow(

BIG NOTE:
Ive maxed several Mobos testing 770/780/790/GX/FX SB600/SB750 with Prime and this 9950 @3.4/3.5ghz @ 1.65+volts using 1.55vid for CPU and NBvids and even over 1.65volts...
SB600 is know to cook PWM'S with Prime and 2.6ghz @anyvolts given enuff time..With that said , use Prime sparingly

Priming 8hours will give my 79-T a pretty decent heat stroke @3.5ghz.
Even though My CPU is stable.

P.S. get me screenshot and i can go from there .

Thanks dude for offering your assistance now that I have found out that the stepping of my CPU is the one the Japanese overclockers are using then I feel it is only right that it is maxed out.

Will do my best to find the time to re-build my WC loop. Been looking at waterblocks and pump, also at wc'ing the north bridge as it runs hot.

Anyhow, off to collect the info required for prognosis, found out that 195ns trfc is more suited for 2GB modules seems to be helping.

-- EDIT --

Here is the screenshot, think all the info required is there

[gOtVoltage]

I hear ya CHICKEN PATTY my 9600BE wont go more than 2350mhz with 64bit vista but can do a wopping 2600mhz with XP lol


MONGOLED,,

Just take your time ,,wright down what works and what you change .Thus it saves you valuable time ,,more Football,Nascar, Girlyfriend/wife,eXcetra.. The pay off will be grand.

[demonkevy666]

I hear ya CHICKEN PATTY my 9600BE wont go more than 2350mhz with 64bit vista but can do a wopping 2600mhz with XP lol


MONGOLED,,

Just take your time ,,wright down what works and what you change .Thus it saves you valuable time ,,more Football,Nascar, Girlyfriend/wife,eXcetra.. The pay off will be grand.

I guess it's as you signature says "Phenom,...Like the perfect Storm,...Everything needs to be just right"

anyways do you get a jump in temps with you ram t 2.32 ? my ram is ratted for 1.9-2.3 volts 1066mhz GEIL evo one 5-5-5-15.
I get higher idle temps with it @ 2.3 volts.
I'm running it in 6-6-6-18 at 800mhz 1.9 volts I get 207 x 14.5 1.450 volts cpu vdda 2.8 ACC all cores @ 8% in AOD, played games and what not. But my if I set the same thing in bios it refuses to boot at all.
I'm thinking maybe it's my ram just don't like this board.....

[Chicken Patty]

I hear ya CHICKEN PATTY my 9600BE wont go more than 2350mhz with 64bit vista but can do a wopping 2600mhz with XP lol


MONGOLED,,

Just take your time ,,wright down what works and what you change .Thus it saves you valuable time ,,more Football,Nascar, Girlyfriend/wife,eXcetra.. The pay off will be grand.

Phenom II's are just around the corner, so no worries. What I might do, and for some reason I love these chips man, I might just get a Athlon x2 5000+. pop it in, and tweak it for a bit, see what numbers it can give me. THey are only like $60 bucks so why not

[mongoled]

anyways do you get a jump in temps with you ram t 2.32 ? my ram is ratted for 1.9-2.3 volts 1066mhz GEIL evo one 5-5-5-15.
I get higher idle temps with it @ 2.3 volts.

Do you have to run your memory at 2.3v for stability? Im running my OCZ's at 1066 5-5-5-16-26 and am only giving them 2.1v. That is for 2 x 2GB, maybe this is the reason I am having some instabilties issues while priming....

Have you tried running with 2.1v?

Also what is this VDDA you are speaking of? Is this the same as VDDC on the DFI board I have?