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Phenom II steppings and max OC 550-940 - Page 252

post #2511 of 2829
Quote:
Originally Posted by PCdestroyer View Post
3918mhz stable on stock cooling, 1.5 volts, 200x19.5, temp idle 42, temp load 56


Phenom II 955
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Phenom II 955
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post #2512 of 2829
Quote:
Originally Posted by robbo2 View Post
Sure thing here they are
NB: 1.24
CPU-NB 1.25
CPU: 1.45
VDDA: Auto
NF200: Auto
1.2v HT: Auto
Memory: 2.1

Have tried a lot of different setting on the voltages.
Drop the NB to 1.1v. That's the default and I haven't noticed any improvements yet moving it higher. Right now it's just adding heat.

Try upping your CPU-NB voltage incrementally all the way to 1.4v (max safe or so I've read). I'm betting that will help a lot, 1.45v on the CPU might be a little low too.
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post #2513 of 2829
Cinebench 3980 MHz (first with lower NB )



new OC 2 rounds with 14 000+10 runs in X86

3914 MHz and 2678 MHz northbridge

lucky Vishera
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lucky Vishera
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post #2514 of 2829
Quote:
Originally Posted by LarsMarkelson View Post
Drop the NB to 1.1v. That's the default and I haven't noticed any improvements yet moving it higher. Right now it's just adding heat.

Try upping your CPU-NB voltage incrementally all the way to 1.4v (max safe or so I've read). I'm betting that will help a lot, 1.45v on the CPU might be a little low too.
LarsMarkelson, good suggestion about the NB voltage. Usually that voltage doesn't have to be touched unless the HT Clock speed (reference clock) is being raised. 1.4v is quite a bit for the NB Frequency but probably necessary. Do you know the stock value for CPU-NB? I have a feeling it's around 1.3volts?

FlanK3r, great job on the stable OC
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post #2515 of 2829
Quote:
Originally Posted by thlnk3r View Post
LarsMarkelson, good suggestion about the NB voltage. Usually that voltage doesn't have to be touched unless the HT Clock speed (reference clock) is being raised. 1.4v is quite a bit for the NB Frequency but probably necessary. Do you know the stock value for CPU-NB? I have a feeling it's around 1.3volts?

FlanK3r, great job on the stable OC
Stock value for CPU-NB voltage is actually just 1.175v. But that's running at only 1800 I believe.

Full list of stock voltages are (courtesy Dolk at OCF):

1.35v CPU
1.175v CPU-NB
1.2v HTT
1.26v SB
1.1v NB
2.55v CPU VDD (not sure what this one is, I don't have it in my bios)
Edited by LarsMarkelson - 9/27/09 at 4:45pm
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post #2516 of 2829
Quote:
Originally Posted by LarsMarkelson View Post
Stock value for CPU-NB voltage is actually just 1.175v. But that's running at only 1800 I believe.

Full list of stock voltages are (courtesy Dolk at OCF):

1.35v CPU
1.175v CPU-NB
1.2v HTT
1.26v SB
1.1v NB
2.55v CPU VDD (not sure what this one is, I don't have it in my bios)
LarsMarkelson, thanks for posting that info up. Here's a little bit of info on "CPU VDD" from Shawdow_419 (a knowledgable 550BE user): http://www.overclock.net/7201974-post731.html.

EDIT: Here is some more info on cpu vdd: http://www.overclock.net/5533629-post5.html
Edited by thlnk3r - 9/27/09 at 4:58pm
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post #2517 of 2829
Set Voltage on CPU/NB at 1.25-1.3V @2500-2600MHz.
Phenom II 955
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Phenom II 965 Lapped OC'd 4.14GHz (Stable 24/7) Gigabyte GA-MA790XT-UD4P 2 x 1G 4890 Liquid cooled crossfire Corsair XMS DDR3 1600(8G 9/9/9/23/1T) 
Hard DriveOptical DriveOSMonitor
2 x 300G Velocity Raptor(Raid0) WD 500G Barracuda Asus Windows7 64 bit Hanspree 22in 
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Phenom II 955
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II 965 Lapped OC'd 4.14GHz (Stable 24/7) Gigabyte GA-MA790XT-UD4P 2 x 1G 4890 Liquid cooled crossfire Corsair XMS DDR3 1600(8G 9/9/9/23/1T) 
Hard DriveOptical DriveOSMonitor
2 x 300G Velocity Raptor(Raid0) WD 500G Barracuda Asus Windows7 64 bit Hanspree 22in 
KeyboardPowerCaseMouse
Logitech Ultra X3 850W Zalman GS1000 Logitech 
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post #2518 of 2829
Quote:
Originally Posted by FlanK3r View Post
Cinebench 3980 MHz (first with lower NB )



new OC 2 rounds with 14 000+10 runs in X86

3914 MHz and 2678 MHz northbridge
Phenom II 955
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II 965 Lapped OC'd 4.14GHz (Stable 24/7) Gigabyte GA-MA790XT-UD4P 2 x 1G 4890 Liquid cooled crossfire Corsair XMS DDR3 1600(8G 9/9/9/23/1T) 
Hard DriveOptical DriveOSMonitor
2 x 300G Velocity Raptor(Raid0) WD 500G Barracuda Asus Windows7 64 bit Hanspree 22in 
KeyboardPowerCaseMouse
Logitech Ultra X3 850W Zalman GS1000 Logitech 
  hide details  
Reply
Phenom II 955
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II 965 Lapped OC'd 4.14GHz (Stable 24/7) Gigabyte GA-MA790XT-UD4P 2 x 1G 4890 Liquid cooled crossfire Corsair XMS DDR3 1600(8G 9/9/9/23/1T) 
Hard DriveOptical DriveOSMonitor
2 x 300G Velocity Raptor(Raid0) WD 500G Barracuda Asus Windows7 64 bit Hanspree 22in 
KeyboardPowerCaseMouse
Logitech Ultra X3 850W Zalman GS1000 Logitech 
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post #2519 of 2829
your is x64....Cinebench in x64 is more better for higher score.Watch here: http://www.overclock.net/amd-cpus/53...challenge.html
lucky Vishera
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lucky Vishera
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Hard DriveOptical DriveCoolingOS
HyperX 3K SSD 18x DVD-RW Samsung Cooler Master V6GT win XP 32-bit and Win 7 64-bit 
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post #2520 of 2829
Quote:
Originally Posted by LarsMarkelson View Post
Drop the NB to 1.1v. That's the default and I haven't noticed any improvements yet moving it higher. Right now it's just adding heat.

Try upping your CPU-NB voltage incrementally all the way to 1.4v (max safe or so I've read). I'm betting that will help a lot, 1.45v on the CPU might be a little low too.
Ok I will give this a shot running @ 3.6 atm with 1.1volts on the NB an 1.25 on cpu-nb an 1.425 on the cpu will test this an take it from there.
Frank
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Frank
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Dominatrix
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AOC U3477PQU Leopold Cherry Browns  EVGA 850W SuperNOVA G2 Fractal Design Define R5 
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Asus Xonar D2X  
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