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Having serious trouble getting a stable 3.8Ghz overclock with my Phenom II X4 965 Black Edition

post #1 of 7
Thread Starter 
Hello everyone! I've been debating on asking for help for a while, but I'm on the verge of pulling my hair out now, and I don't fancy being bald, so some help and advice would be much appreciated. smile.gif
I just finished building a gaming rig on the cheap a few weeks ago, and I've had no success with overclocking.

First of all, my specs:
Motherboard: ASRock 970DE3/U3S3
PSU: Corsair Builder Series CX600 (600W)
CPU: AMD Phenom II X4 965 Black Edition w/ CoolerMaster Hyper212
GPU: Sapphire Radeon HD 5670 @ stock settings (temporary, going to be replaced with a 7850 very soon)
RAM: 2x4GB Corsair Vengeance 1600Mhz DDR3 RAM, 9-9-9-24, 2T

Secondly, my dilemma. I've been attempting to achieve a modest overclock of 3.8Ghz (200x19) for my CPU and 2.6Ghz (200x13) for my CPU-NB, and this is where things get a little hairy. I cannot achieve Prime95 stability with these multiplier settings. Any voltage lower than 1.5V for the CPU results in a BSOD before I'm even able to log in, and 1.25V is the only NB voltage that will allow my computer to even boot. Small FFTs can run for hours with no problems, but Blend either shoots off rounding errors within a few minutes, or simply causes the computer to BSOD after 15 minutes or so, STOP error code 0x101. I'm aware that issues with Blend could be caused by memory problems, but I've already ran a full Memtest86+ pass with no errors found. I also know that my CPU isn't overheating, because even at those voltages, my cooler keeps it at typically less than 53 degrees Celcius at full load. Blend generally puts it at around the mid to high 40's.

However, I was recently able to achieve a stable overclock at 3.6Ghz for the CPU and 2.4Ghz for the CPU-NB, but only at those same ridiculously high voltages, which isn't very efficient at all. Currently, I'm back to stock settings until I can get some help.

The only thing I can think of is that my particular chip is garbage when it comes to overclocking, or that my motherboard is hindering me. I'm leaning toward the motherboard being the issue, but I'd like to know what you all think.

Thank you so much!

EDIT: I should also mention that Cool-n-Quiet, C1E, thermal throttling, and spread spectrum are all disabled. My chipset voltage settings are all set to Auto.
Edited by MoosetheHuman - 2/25/13 at 9:54pm
post #2 of 7
Is that a 125 watt 965?
post #3 of 7
first of all, stop oc your cpu/nb, roll that back to stock freq and voltage. Try to ramp up your multiplier and voltage as much as possible first until you reach a bsod. Then start play with the cpu/nb. I myself reached 4.1Ghz on my 965 at stock voltage (cpu-z showed 1.44-1.46V) without messing with the cpu/nb, so try that first.
PS: although my mobo got 12+2 phases, in your case it may be a bit lower ghz.
Edited by tomhrxbfg - 2/25/13 at 10:03pm
post #4 of 7
You could have gotten a sour chip. I have an Athlon 640 that won't even overclock by .12GHz.
     
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CPUMotherboardGraphicsRAM
AMD Phenom II X6 1090T  ASUS Sabertooth 990FX Zotac nVIDIA GTX 560 non-TI 8GB Samsung 30nm "Wonder Ram" 
Hard DriveOptical DriveCoolingOS
Hitachi HDS721050CLA362 (0F10381) 500GB 7200 RPM Sony Optiarc DVD-RW Cooler Master Hyper 212+ Windows 8 Professional x64 
MonitorKeyboardPowerCase
Acer V243H 24"  Unicomp EnduraPro Corsair GS700 Cooler Master HAF X  
MouseAudio
Logitech G400 ASUS Xonar DGX 
CPUMotherboardGraphicsRAM
Pentium III Katmai 500mhz Intel RC440BX NVIDIA RIVA 128/128ZX 8MB (Integrated) 384MB PC100 SDRAM 
Hard DriveOptical DriveOSMonitor
Quantrum Fireball 8GB SAMSUNG CD-RW Windows 2000 Professional Dell E773C 
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post #5 of 7
Yesz
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Yesz
(15 items)
 
  
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post #6 of 7
Thread Starter 
Quote:
Originally Posted by L4dd View Post

Is that a 125 watt 965?

It is! It's a C3 stepping, I'll have to add that to the OP.
Quote:
Originally Posted by tomhrxbfg View Post

first of all, stop oc your cpu/nb, roll that back to stock freq and voltage. Try to ramp up your multiplier and voltage as much as possible first until you reach a bsod. Then start play with the cpu/nb. I myself reached 4.1Ghz on my 965 at stock voltage (cpu-z showed 1.44-1.64V) without messing with the cpu/nb, so try that first.
PS: although my mobo got 12+2 phases, in your case it may be a bit lower ghz.

I'll try to be a bit more patient and give this a try. I'll report back in a bit.
Quote:
Originally Posted by Texasinstrument View Post

You could have gotten a sour chip. I have an Athlon 640 that won't even overclock by .12GHz.

I really hope that's not the case. frown.gif
Quote:
Originally Posted by FlashFir View Post

These threads were invaluable for me and teaching me how to overclock.

Gappo's and the AM2 guide REALLY helped me to THINK rather than just DO which is really important in learning something and becoming an expert.

I'll give those a read before messing around in the BIOS some more. Thank you so much!
post #7 of 7
OP it looks like a problem is increasing CPU/NB voltage goes with "northbridge" reported by CPU Z


You're trying too many things at once.

CPU multiplier only first, then once you're at your limit 1.55v or 62C max first (55C-62C)

CPU/NB start at stock then up it from stock 1.15v I believe... I hit 2780 on mine at around 1.3v for the CPU/NB

Again, read Gappo's guide. It's the best.
Yesz
(15 items)
 
  
CPUMotherboardGraphicsRAM
i5-3570K G1 Sniper M3 RX 480 16gb CL9 1600 1.5v 
Hard DriveHard DriveHard DriveCooling
Seagate 3TB Crucial 500GB SSD 1TB WD Black Noctua NH-D14 
MonitorKeyboardPowerCase
Yamakasi Catleap 27" (2560x1440) dasKeyboard Silent (Browns) XFX 550w Silverstone PS07B 
MouseMouse PadAudio
Nixeus Revel SteelSeries Qck+ SR850/Klipsch 2.1 
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Yesz
(15 items)
 
  
CPUMotherboardGraphicsRAM
i5-3570K G1 Sniper M3 RX 480 16gb CL9 1600 1.5v 
Hard DriveHard DriveHard DriveCooling
Seagate 3TB Crucial 500GB SSD 1TB WD Black Noctua NH-D14 
MonitorKeyboardPowerCase
Yamakasi Catleap 27" (2560x1440) dasKeyboard Silent (Browns) XFX 550w Silverstone PS07B 
MouseMouse PadAudio
Nixeus Revel SteelSeries Qck+ SR850/Klipsch 2.1 
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