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Overclocking Core 2 Quad Q9400

post #1 of 9
Thread Starter 
Hello Guys,

This is my first thread here, please tell me if I opened it somewhere wrong. I have the following specs;

Asus P5Q Pro- Q9400
2gb*2 DDR2 800 Ram
1gb*2 DDR2 800 Ram
Very old PSU, it is 350W
HD5450 1gb

I am browsing the web for almost 4 days, read lots of overclocking guides and some examples for q9400 or for p5q pro I can give links to every page-thread but it would be so long, for example;

http://www.overclock.net/t/465981/need-help-over-clocking-q9400-2-66-ghz
http://www.overclock.net/t/1443197/overclocking-my-old-intel-core-2-quad-q9400
http://www.overclock.net/t/935829/the-overclockers-bsod-code-list

I am stable with these settings;

Ratio 8
FSB 415
PCIE FREQ: 100
FSB STRAP TO NB: Auto
DRAM FREQ: ddr2-831 mhz
Dram timing auto or manual (5-5-5-15)

DRAM STATIC READ CTRL: DISABLED
DRAM READ TRAINING: DISABLED
MEM OC CHARGER: ENABLED
AI CLOCK TWISTER: LIGHTER
AI TRANSACTION BOOSTER: AUTO


CPU v:1.37500??
GTL Ref:Auto
PLL:1.6
FSB termination 1.36
DRAM: 2
NB: 1.2
SB: Auto
PCIE: Auto
LoadLine:Enabled
CPU and PCIE spread:disabled
CPU and NB Skew:Normal
CPU Margin: Performance mode

My question is how much PSU would be effecting my overclock stability? If I increase nb to stabilize with 425 fsb, psu or motherboard(don't know which one) starts to make some kind of an electrical sound like this one;
https://www.youtube.com/watch?v=i-ZoABfgJ5A

Is it because my psu is so bad(btw I dont wish to continue with that psu anyway because it is 350w and so old, I bought a brand new 650w thermaltake smartpower 80plus bronze) or is this buzzing because my motherboard and cpu does not need that much volt?

Is it possible to achieve better overclocking with better psu? (I am not thinking 650w vs 350w would make the effect but the quality of the psu)

Is 2.66 to 3.32 roughly what should I expect from my q9400 or should I expect more from my cpu as a beginner?

As I learn (correct me if I am wrong) 1.37500 as vcore is too much and cpu-z shows it as 1.36v with vdroop. but anything less, causes unstability. Does it mean my cpu is somewhat not that good and that is why it needs so much vcore? What about my other voltages? I tried to keep them all low.

Any suggestion, help, answer would be so appreciated.
post #2 of 9

It's very dangerous to use a PSU like that when overclocking. Set it back to stock before you kill your computer or start a fire. I'm dead serious. It's not safe. You need a high-quality PSU that has good quality internal components.

It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #3 of 9
Thread Starter 
Yeah that is exactly why I bought the thermaltake one, and I used the pc at most for 30 minute.
post #4 of 9

Oh my god, I missed that part somehow. :( I profusely apologize for that. Wow. I'm slipping.

It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #5 of 9
Thread Starter 
Up?
post #6 of 9
PCI-E spread spectrum should be left enabled. There is no reason to disable that one.

Try 1.7v pll. Sometimes you'll have to loosen your ram timings to get s higher overclocks to work. I've had a stable 3.8Ghz OC on my Q9550.

Here are my overxlocking settings for my Q9550. Your mileage may vary:
CPU Frequency [450]
CPU Ratio [8.5]
CPU Voltage [1.3125]
NB Voltage [1.26]
Ram Ratio [900]

Try increasing NB first, this can help a lot with stability on over clocking.
Edited by benjamen50 - 1/24/16 at 9:04am
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Western Digital 1 TB Pioneer Noctua NH-U9B Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Dell Monitor Logitech G110 Antec 750W Thermaltake Aluminium Old Case 
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post #7 of 9
Thread Starter 
I could not get my answer, but after getting my new psu, those buzzings are ended, and I am able to achieve better overclocks, I did not know psu is that much important for overclocking, now I am running on 3.5ghz
post #8 of 9
Quote:
Originally Posted by eralpsahin View Post

I could not get my answer, but after getting my new psu, those buzzings are ended, and I am able to achieve better overclocks, I did not know psu is that much important for overclocking, now I am running on 3.5ghz

Yeh, PSUs regulate the electricity going into your parts. Unstable voltages, current, etc = unstable overclocks.
post #9 of 9
Quote:
Originally Posted by eralpsahin View Post

I could not get my answer, but after getting my new psu, those buzzings are ended, and I am able to achieve better overclocks, I did not know psu is that much important for overclocking, now I am running on 3.5ghz

 

Wait, I left this alone because I thought you had that PSU installed already. That explains everything for me.

It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
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