Overclock.net › Forums › AMD › AMD - General › Help Overclocking my phenom 2 965 please? I'm confused on the cpu-nb.
New Posts  All Forums:Forum Nav:

Help Overclocking my phenom 2 965 please? I'm confused on the cpu-nb.

post #1 of 13
Thread Starter 
I've been watching videos and reading guides for about 5-6 hours worth now and i think i feel pretty comfortable OCing. But, i still don't get the CPU north-bridge overclocking. I know that the things i should overclock to get performance boost are: CPU, RAM, CPU-NB, and GPU and i get the cpu/gpu fairly well. I decided to start OCing my rig with the CPU-NB( i read that it can be a prob so i thought I'd do it first), but I'm having a really hard time getting to 2.6ghz on the cpu NorthBridge. I can take slow steps and get to 2.6ghz at even 1.275volts(running OCCT right now) on the cpu-nb BUT erlier i couldn't get 2.6ghz running at like 1.3v or 1.35v, even 1.37v. I don't get it, i thought the more voltage the better unless you're burning up your pc. I thought if you had a choice of running 1.2v or 1.3v at the same temperature, you would go for 1.3v since it will give more stability. Also, other people are running at 1.35volts and 2.6ghz on the cpu-nb just fine.

I was wondering if raising the actual North-Bridge's voltage would make a difference. I'm not going to overclock my RAM yet and i heard that increasing NB chip's voltage by a bit can help get RAM stable.

Enough of my pc stories, here's the question:
-- Should i OC the CPU-NB by a lot( I keep reading going from 2ghz stock to 2.6ghz OC gives a performance boost)?
-- Do I even touch the HT link??
-- Will I have to deal with the actual NB chip's volts when OCing the RAM?
-- What should i OC in the RAM?(drop to 1333mhz and tighten the latencies?)
-- Any advice? what volts should i use?

My specs:
AMD 6970------oc'd to max in ccc.
AMD phenomX4 965 at 3.4ghz WITH corsair A70 cooler.
4gig kingston ddr3-1600 9-9-9-24
Gigabyte 790xta-ud4
ocz eliteXstream 800w
1T WB black HDD

1 hour of "Large Data Set" in the OCCT has passed with EVERYTHING being at stock, but the cpu-nb being at 2.6ghz 1.27volts.
Edited by artashes - 1/27/11 at 4:09am
Main RiG
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II 965 4ghz 1.55v/ cpuNB 2.6ghz 1.35v Gigabye 790XTA-UD4 AMD Radeon HD 6970 Kingston HyperX DDR3-1600 4gig 
Hard DriveOSMonitorKeyboard
WD Black 1T Sata3 Windows 7 Ultimate 64bit random HP 1440x900 random HP 
PowerCaseMouseMouse Pad
Corsair EliteXstream 800W NZXT Tempest Steelseries Ikari Steelseries QCK large 
  hide details  
Reply
Main RiG
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II 965 4ghz 1.55v/ cpuNB 2.6ghz 1.35v Gigabye 790XTA-UD4 AMD Radeon HD 6970 Kingston HyperX DDR3-1600 4gig 
Hard DriveOSMonitorKeyboard
WD Black 1T Sata3 Windows 7 Ultimate 64bit random HP 1440x900 random HP 
PowerCaseMouseMouse Pad
Corsair EliteXstream 800W NZXT Tempest Steelseries Ikari Steelseries QCK large 
  hide details  
Reply
post #2 of 13
well, more voltage is not the better.
you just have find the sweet spot for it. if 1.275 works for you leave it at that speed.

you dont have to find the limit of cpu/nb first.. you have to make sure cpu/nb is not the reason why cant push cpu any further. so 2.4-2.6 is fine and leave it and start oc'ing cpu.

so,
you wont find much perfomance increase unless you oc cpu as well.
leave ht link 1.8-2 ghz
i dont know about ocing ram
depends on the ram
you say you have air cooler, try not to go past 1.45vcore mark.
many people have their cpu/nb sweetspot around 1.275-1.35 at 2.6ghz.
    
CPUMotherboardGraphicsRAM
Intel i3 540 P7H55M-Pro XFX 6770 OCZ Platinum 
Hard DriveHard DriveHard DriveOptical Drive
OCZ Vertex 2E  Samsung F4 Maxtor DiamondMax 23 LG Super-multi Drive 
CoolingOSMonitorKeyboard
Coolermaster Hyper212+ Microsoft Windows 7 Professional 64-bit LG W2361V Razer Tarantula 
PowerCaseMouseMouse Pad
Corsair CX430v2 Coolermaster Elite 335 Logitech MX518 Roccat Taito 
AudioAudioAudio
Asus Xonar DG Logitech Z523 2.1 Speakers Sennheiser PC350 Headset 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Intel i3 540 P7H55M-Pro XFX 6770 OCZ Platinum 
Hard DriveHard DriveHard DriveOptical Drive
OCZ Vertex 2E  Samsung F4 Maxtor DiamondMax 23 LG Super-multi Drive 
CoolingOSMonitorKeyboard
Coolermaster Hyper212+ Microsoft Windows 7 Professional 64-bit LG W2361V Razer Tarantula 
PowerCaseMouseMouse Pad
Corsair CX430v2 Coolermaster Elite 335 Logitech MX518 Roccat Taito 
AudioAudioAudio
Asus Xonar DG Logitech Z523 2.1 Speakers Sennheiser PC350 Headset 
  hide details  
Reply
post #3 of 13
Thread Starter 
Wow.... the 2.6ghz at 1.27volts stopped working lol. So here's what's happening: When i raise the cpu-nb by 200mhz and restart, I can get to 2.6ghz easy, it never crashes on me, BUT when i leave my computer off for a while, i can't even post next time i try to start it. Yesterday i ran 1 hour of occt of large data and the pc was working fine, then i went to sleep since it was like 4am, now i wake up 8 hours later and the pc won't boot. When i try to turn it on right now, it's like someone's pressing the restart button every half a second causing my fans to go all crazy, then there's like a 4 sec break, and the fans go crazy again. Same stuff happens at all the volts a tried... from 1.25 to 1.4 . I'm lost lol, please help.
Main RiG
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II 965 4ghz 1.55v/ cpuNB 2.6ghz 1.35v Gigabye 790XTA-UD4 AMD Radeon HD 6970 Kingston HyperX DDR3-1600 4gig 
Hard DriveOSMonitorKeyboard
WD Black 1T Sata3 Windows 7 Ultimate 64bit random HP 1440x900 random HP 
PowerCaseMouseMouse Pad
Corsair EliteXstream 800W NZXT Tempest Steelseries Ikari Steelseries QCK large 
  hide details  
Reply
Main RiG
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II 965 4ghz 1.55v/ cpuNB 2.6ghz 1.35v Gigabye 790XTA-UD4 AMD Radeon HD 6970 Kingston HyperX DDR3-1600 4gig 
Hard DriveOSMonitorKeyboard
WD Black 1T Sata3 Windows 7 Ultimate 64bit random HP 1440x900 random HP 
PowerCaseMouseMouse Pad
Corsair EliteXstream 800W NZXT Tempest Steelseries Ikari Steelseries QCK large 
  hide details  
Reply
post #4 of 13
Thread Starter 
Not sure if this is any help but i was reading a lot of dif threads on the phenom 2 965 and the gigabyte xta-ud4 and I saw couple other people having problems with not booting their system when it's cold, they called it "cold-boot". So just to clarify again, i did not change anything but raise the cpu-nb multiplier to 11-13 and raise the cpu-nb voltage to about 1.2v-137v. So, my system won't cold boot at 2400-2600mhz cpu-nb.

Also, my bios version is F2. I've read that upgrading to F3 solved the cold-boot problem for some people at cpu-nb being at 2.6ghz. Gonna try an learn how to upgrade my bios now.
Edited by artashes - 1/27/11 at 3:28pm
Main RiG
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II 965 4ghz 1.55v/ cpuNB 2.6ghz 1.35v Gigabye 790XTA-UD4 AMD Radeon HD 6970 Kingston HyperX DDR3-1600 4gig 
Hard DriveOSMonitorKeyboard
WD Black 1T Sata3 Windows 7 Ultimate 64bit random HP 1440x900 random HP 
PowerCaseMouseMouse Pad
Corsair EliteXstream 800W NZXT Tempest Steelseries Ikari Steelseries QCK large 
  hide details  
Reply
Main RiG
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II 965 4ghz 1.55v/ cpuNB 2.6ghz 1.35v Gigabye 790XTA-UD4 AMD Radeon HD 6970 Kingston HyperX DDR3-1600 4gig 
Hard DriveOSMonitorKeyboard
WD Black 1T Sata3 Windows 7 Ultimate 64bit random HP 1440x900 random HP 
PowerCaseMouseMouse Pad
Corsair EliteXstream 800W NZXT Tempest Steelseries Ikari Steelseries QCK large 
  hide details  
Reply
post #5 of 13
Thread Starter 
Ok, i flashed my bios to F3 now and the cpu-nb does cold-boot at 2.6ghz. I'm just trying to find the sweet-spot for my cpu at 4ghz and keeping the cpu-nb at 2.6ghz. BSODing so far but i think I'll get there.

New problem: the HT(reference clock) is set to 200 in bios and i use the multipliers only to OC, and the PCI frequency is at it's default=100, i just put it to 100mhz in bios to make sure it stays that way. BUT the AMD OverDrive is saying that my PCI-E frequency is at 350mhz some how with the target being 150mhz. Also the Reference clock was at 213... so ***?? I change the Ref clock back to 200 and PCI-E back to 100mhz AND MY PC GOES NUTS!!! the fans were freaking x10 louder than they were with that continues resetting problem i had when upping cpu-nb in my old bios. I got fcking scared, pressed the power button and held it for like 10 secs but then the pc started beeping loudly lol so i just unplugged it. Any can explain *** happened??
Main RiG
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II 965 4ghz 1.55v/ cpuNB 2.6ghz 1.35v Gigabye 790XTA-UD4 AMD Radeon HD 6970 Kingston HyperX DDR3-1600 4gig 
Hard DriveOSMonitorKeyboard
WD Black 1T Sata3 Windows 7 Ultimate 64bit random HP 1440x900 random HP 
PowerCaseMouseMouse Pad
Corsair EliteXstream 800W NZXT Tempest Steelseries Ikari Steelseries QCK large 
  hide details  
Reply
Main RiG
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II 965 4ghz 1.55v/ cpuNB 2.6ghz 1.35v Gigabye 790XTA-UD4 AMD Radeon HD 6970 Kingston HyperX DDR3-1600 4gig 
Hard DriveOSMonitorKeyboard
WD Black 1T Sata3 Windows 7 Ultimate 64bit random HP 1440x900 random HP 
PowerCaseMouseMouse Pad
Corsair EliteXstream 800W NZXT Tempest Steelseries Ikari Steelseries QCK large 
  hide details  
Reply
post #6 of 13
Edit: HT actually stands for Hypertransport, not your CPU reference clock.
I'm pretty sure the PCI-E frequency should never go above 100 but I suspect you are reading your PCI-E frequency wrong. It sounds as if you are confusing your GPU core clock with the PCI-E frequency. Also, what do you mean by "target being 150mhz"?
As for the fans freaking out, I haven't got a clue why they did that. Are you OCing via your BIOS or AMD Overdrive?
Edited by KillingTheSilence - 1/28/11 at 4:06am
Rescue 1
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X3 740 MSI 770-G45 XFX HD 6850 G.Skill Ripjaws 4GB DDR3 1600MHz 
Hard DriveOSMonitorPower
Seagate Barracuda 1TB Windows 7 64-bit Hanns.G HW191A SeaSonic X650 
CaseMouse
HAF 912 R.A.T. 5 
  hide details  
Reply
Rescue 1
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X3 740 MSI 770-G45 XFX HD 6850 G.Skill Ripjaws 4GB DDR3 1600MHz 
Hard DriveOSMonitorPower
Seagate Barracuda 1TB Windows 7 64-bit Hanns.G HW191A SeaSonic X650 
CaseMouse
HAF 912 R.A.T. 5 
  hide details  
Reply
post #7 of 13
My fans do the same thing after an unstable overclock crashes. It will cycle through the 100% fan speed to normal speed while it tries to reboot-I clear cmos ( easy with the button on the GD-70 motherboard) and its good to go again.
PCI-E overclocking - not really a good idea in my opinion.
Ryzen Shine!
(14 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 1800X @ 4125mhz 1.432 Volts MSI X370 Titanium   Fury  G.SKILL TridentZ Series 32GB (4 x 8GB) 288-Pin... 
Hard DriveOptical DriveCoolingOS
Samsung 850 pro Hp 1260 I liquid unobtanium Koolance 480mm radiator, 39... Win 7 HP/Winspy 10 64bit 
MonitorKeyboardPowerCase
24" hp @ 1900x1200 Logitech G19 PC power and cooling 910 watt silencer Thermaltake P5 
MouseMouse Pad
Logitech MX 518 fUnc industries 
  hide details  
Reply
Ryzen Shine!
(14 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 1800X @ 4125mhz 1.432 Volts MSI X370 Titanium   Fury  G.SKILL TridentZ Series 32GB (4 x 8GB) 288-Pin... 
Hard DriveOptical DriveCoolingOS
Samsung 850 pro Hp 1260 I liquid unobtanium Koolance 480mm radiator, 39... Win 7 HP/Winspy 10 64bit 
MonitorKeyboardPowerCase
24" hp @ 1900x1200 Logitech G19 PC power and cooling 910 watt silencer Thermaltake P5 
MouseMouse Pad
Logitech MX 518 fUnc industries 
  hide details  
Reply
post #8 of 13
Thread Starter 
I'm Ocing thought BIOS but I use the AMD Ove-Drive to monitor stuff like temps ... current speeds of everything, ect... When i say "Targeted clock being 150mhz", it's just what the AMD OVerDrive tells me it's targeting for the PCI clock, also even though it's "targeting 150mhz" it tells me it's actually 345.166mhz and while all the other clocks like cpu speed are being updated every second, the PCI-E clock stays the same which makes me think that's it's just false reading.



Also, i think i got my OC stable but I'm not complete happy with it:
AMD phenom 2 965 is running at 4ghz but at 1.55(cpuz reads 1.53v) which makes the cpu be 39c idle and around 56c load after 1 hour of prime95. I'm not very happy with this but i don't think i can change the volts since i was getting the black-screen restarts, which i think stands for cpu not having enough volts(not too sure)?? Also the cpu-nb is at 2.6ghz@1.35volts and I don't wanna go higher since i don't think there will be a great performance boost. I also raised the NB chip volts to 1.14 from 1.12 just for the hell of it..
Ram is stock ddr3-1600 9-9-9-24( i wanted to bring the speed to 1333 and lower the clocks, should I?

any advice?
Main RiG
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II 965 4ghz 1.55v/ cpuNB 2.6ghz 1.35v Gigabye 790XTA-UD4 AMD Radeon HD 6970 Kingston HyperX DDR3-1600 4gig 
Hard DriveOSMonitorKeyboard
WD Black 1T Sata3 Windows 7 Ultimate 64bit random HP 1440x900 random HP 
PowerCaseMouseMouse Pad
Corsair EliteXstream 800W NZXT Tempest Steelseries Ikari Steelseries QCK large 
  hide details  
Reply
Main RiG
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II 965 4ghz 1.55v/ cpuNB 2.6ghz 1.35v Gigabye 790XTA-UD4 AMD Radeon HD 6970 Kingston HyperX DDR3-1600 4gig 
Hard DriveOSMonitorKeyboard
WD Black 1T Sata3 Windows 7 Ultimate 64bit random HP 1440x900 random HP 
PowerCaseMouseMouse Pad
Corsair EliteXstream 800W NZXT Tempest Steelseries Ikari Steelseries QCK large 
  hide details  
Reply
post #9 of 13
Try comparing AMD Overdrive's PCI clocks with GPU-Z's core clock. If they're the same, then the 350 you were seeing was just your GPU essentially doing what AMD Cool & Quiet does. For example, as my sig shows, my GPU core is clocked at 890 but some of the time it shows that it's at 300.

If I were you, I'd try to get it just a little bit cooler under load but it shouldn't be too big of a deal as long as that's the max it hits.

Also, 1 hour of Prime95 doesn't mean a whole lot as far as stability is concerned. That's basically the equivalent of saying "I can boot at 4GHz." I'd recommend about 6 hours of Prime or 2-3 hours of OCCT.

And you should never raise voltages without reason. The higher the voltages, the more power it consumes and the more heat it produces. If anything, try undervolting.

As for the RAM, you might not even see a difference with your stock settings vs 1333 CL8. Maybe if you got it to CL7 but even then I don't know if it'd be noticeable. And just a warning, never go over 1.65V on DDR3.

Edit: AMD says that 1.55V is the max safe voltage which is what you seem to be at, so be careful with that.
Edited by KillingTheSilence - 1/28/11 at 11:15pm
Rescue 1
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X3 740 MSI 770-G45 XFX HD 6850 G.Skill Ripjaws 4GB DDR3 1600MHz 
Hard DriveOSMonitorPower
Seagate Barracuda 1TB Windows 7 64-bit Hanns.G HW191A SeaSonic X650 
CaseMouse
HAF 912 R.A.T. 5 
  hide details  
Reply
Rescue 1
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X3 740 MSI 770-G45 XFX HD 6850 G.Skill Ripjaws 4GB DDR3 1600MHz 
Hard DriveOSMonitorPower
Seagate Barracuda 1TB Windows 7 64-bit Hanns.G HW191A SeaSonic X650 
CaseMouse
HAF 912 R.A.T. 5 
  hide details  
Reply
post #10 of 13
Thread Starter 
Nope, the PCI-E clock displayed in AOD is not the same as some of my GPU's core clocks. My GPU clocks itself differently depending what i do, it's usually 250hmz/150hmz, 500/1375(when watching videos), and 880/1375 when gaming( when i play games i gotta close all the vids like youtube just to get the standard clock, but that's another prob of mine, 11.1 drivers didn't fix). Anyways... AOD is just acting weird on me... It's for some reason saying that the reference clock is 213 and not 200 like i have it set in BIOS, therefor all the "Target Speeds" are fcked up.. Target speeds is just AODs calculation of what the clocks suppose to be with those settings. Basically, AOD monitors all the clocks correct like CPU, GPU, RAM, CPU-NB, REF clock even though it thinks that the clocks should be different. Also all the clocks that are correct are being updated every second except for the PCI-E, it's just stuck at 345.166mhz and "Target speed" is 150mhz.. I'll just leave this alone since I think it's just bs.

Back to my OC, I just ran 3hours of Prime95 blend, here are the result: 3 cores passed everything with no errors but my last core got a "FATAL ERROR: Rounding was 0.5, expected less than 0.4" at about 1 hour into the stress test, the pc didn't crash though, Prime95 just stopped stressing that core. Again.. 4ghz at 1.536V( CPU-Z reading).

Also... i just benchmarked BC2 with the new system's speed and apprently it's fcking slower lol. My old test was stock everything(cpu 3.4ghz, stock gpu, stock ram, stock NB, everything...) + the 10.12 drivers for my amd 6970 and the AVG FPS were always 95-100. Now, Cpu 4ghz/2.6ghz cpuNB, stock RAM, stock gpu clocks BUT at the new 11.1 drivers and i get around 90fps avg(benchmarked with fraps, same mission always, no settings changed). IDK *** is going on but I'm gonna Re-install the gpu drivers again sicne it's showing that my current CCC driver is 10.12 even though the CCC itself even looks different. lolz, With all this crap I've been getting lately of games being at low fps like GTA4 being at 25fps avg, I don't like AMD anymore lol , makes me think if going with a gtx570 would of been better since at least on that card there's no probs with GTA4.

Srry for all these long essays I've been writing, I really appreciate the people who actually read this and post me suggestions, Ty.
Main RiG
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II 965 4ghz 1.55v/ cpuNB 2.6ghz 1.35v Gigabye 790XTA-UD4 AMD Radeon HD 6970 Kingston HyperX DDR3-1600 4gig 
Hard DriveOSMonitorKeyboard
WD Black 1T Sata3 Windows 7 Ultimate 64bit random HP 1440x900 random HP 
PowerCaseMouseMouse Pad
Corsair EliteXstream 800W NZXT Tempest Steelseries Ikari Steelseries QCK large 
  hide details  
Reply
Main RiG
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II 965 4ghz 1.55v/ cpuNB 2.6ghz 1.35v Gigabye 790XTA-UD4 AMD Radeon HD 6970 Kingston HyperX DDR3-1600 4gig 
Hard DriveOSMonitorKeyboard
WD Black 1T Sata3 Windows 7 Ultimate 64bit random HP 1440x900 random HP 
PowerCaseMouseMouse Pad
Corsair EliteXstream 800W NZXT Tempest Steelseries Ikari Steelseries QCK large 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD - General
Overclock.net › Forums › AMD › AMD - General › Help Overclocking my phenom 2 965 please? I'm confused on the cpu-nb.