Phenom 9950 Overclocking

[gOtVoltage]

1.4v ,, Nice work,,


PWM's/power phases .. i sent a few to doomsville.

Prime+9950+Me+@1.65volts = a slightly volitile recipe

So i dont use prime for extended use(8+hours)while using Highvolts, i know what it does .


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

[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?

[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 .

[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.

[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.....

[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?

[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