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Typical NB VID?

post #1 of 7
Thread Starter 
I've got a good Phenom II X4 965 chip that's running at 3.8ghz stable at a mere 1.375V with stock NB speeds. Since I'm not a big fan of noise, I tried out PhenomMsrTweaker as an alternative to Cool'n'Quiet, and used all the defaults from cool'n'quiet except for the P0 (high performance) state.

attachment.php?attachmentid=194770&stc=1&d=1297275510

But what do I set the NB VID to for the high performance state? I'm assuming thats the NB on the chip, not the motherboard NB. Right now, I just tried 1.375V just so it would be the same as Vcore, but I haven't run a long stability test yet to see if it's stable.

The NB VID in all the other states are the same. 1.1V
attachment.php?attachmentid=194771&stc=1&d=1297275510


I'm new to overclocking, so I have no idea what a normal NB VID should be. Any ideas?
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Bruce
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post #2 of 7
first tell me at what speed are you running the cpu-nb (on p-0)?
    
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post #3 of 7
Thread Starter 
The CPU is running at 3.8ghz. 2000mhz and 19x multiplier.
The normal Northbridge speed is stock, the CPU NB Speed in AMD overdrive is 2000mhz. It should be the same for all the power states, right?
Edited by brucethemoose - 2/9/11 at 10:46am
Bruce
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Bruce
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post #4 of 7
yep...... increase that cpu-nb speed to 2600/2700MHz to get optimum performance. cpu-nb voltage for that speed should be somewhere around 1.35v. for default 2000mhz speed, 1.2v is enough.
points to remember: 1> you dont have to increase cpunb voltage just because you have increased cpu vcore.
2> if cpu-nb is at stock, only cpu is overclocked, system is stable............. no need to increase cpu-nb voltage.
3> sometimes even though thecpu-nb is at stock, only cpu is overclocked, the ram is at stock........ we get prime crashes for memory faults. In those cases adjusting the cpunb voltage one/two step helps in stabilizing the system.

hope this helped smile.gif
    
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post #5 of 7
Thread Starter 
Quote:
Originally Posted by leopold1985;12322636 
yep...... increase that cpu-nb speed to 2600/2700MHz to get optimum performance. cpu-nb voltage for that speed should be somewhere around 1.35v. for default 2000mhz speed, 1.2v is enough.
points to remember: 1> you dont have to increase cpunb voltage just because you have increased cpu vcore.
2> if cpu-nb is at stock, only cpu is overclocked, system is stable............. no need to increase cpu-nb voltage.
3> sometimes even though thecpu-nb is at stock, only cpu is overclocked, the ram is at stock........ we get prime crashes for memory faults. In those cases adjusting the cpunb voltage one/two step helps in stabilizing the system.

hope this helped smile.gif

It did, ty. Ill set it at a safe 1.2v now, then I'll get to tweaking the NB soon. But since I'm only using a 6850 with a crappy monitor, I probably won't get too many bottlenecks anyway.
Bruce
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Bruce
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Corsair TX750 V1 Antec 300 Black Illusion  Logitech G400s Xonar ST 
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post #6 of 7
No, there wont be any bottlenecks. Look at my specs. I am one step behind you in specs and yet I am able to run almost(99%) all games in extreme settings. So, you will be fine even without any oc.
    
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post #7 of 7
Thread Starter 
I just played New Vegas a bit, and shot at what looked like a ghoul in the distance. Turns out it was just a pixelated bush....

Even with AA bumped up, I'm starting to realize 1360x768 isn't really cutting it anymore, and while 1280x1024 helps a bit, I miss widescreen dearly. I probably need to stop worrying about my overclock and start worrying about using something besides an old 720p TV lying around the house. That extra FPS won't even show up on this screen anyway.
Bruce
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CPUMotherboardGraphicsRAM
4670k Asus Z87 Pro HIS 7950 IceQ X2 2x2gb + 2x4gb DDR3 1333 
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Seagate 1TB 7200RPM OCZ Agility 4 128GB PNY 240GB LG Blu Ray Burner 
CoolingOSMonitorKeyboard
Hyper 212+ with extra fan Windows 10 Education x64 Shimian QH270 @110hz Medieval Dell OEM Keyboard 
PowerCaseMouseAudio
Corsair TX750 V1 Antec 300 Black Illusion  Logitech G400s Xonar ST 
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Fostex T50rp with BMF mod Archer T9E Wifi adapter 2x Yate Loon D12SL-12D 120x38mm fans Thermalright TY-143 fan 
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Bruce
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CPUMotherboardGraphicsRAM
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Seagate 1TB 7200RPM OCZ Agility 4 128GB PNY 240GB LG Blu Ray Burner 
CoolingOSMonitorKeyboard
Hyper 212+ with extra fan Windows 10 Education x64 Shimian QH270 @110hz Medieval Dell OEM Keyboard 
PowerCaseMouseAudio
Corsair TX750 V1 Antec 300 Black Illusion  Logitech G400s Xonar ST 
AudioOtherOtherOther
Fostex T50rp with BMF mod Archer T9E Wifi adapter 2x Yate Loon D12SL-12D 120x38mm fans Thermalright TY-143 fan 
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