Successful OC e8400 @ 4.00Ghz

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LukaszR

Guru of Gaming
Member
Here are the settings i managed to get my E8400 to run stable at 4.00Ghz with ram at 890Ghz.

Sytem Clocks:
PCIEX16_2: 100 MHz
PCIEX16_1: 100 Mhz
SPP<->MCP: 250.0 Mhz

FSB & Memory Config
Clock Mode: Linked
Ratio: Sync Mode
FSB (QDR): 1780 (445)
Mem Mhz: 890.0

OC'ing
CPU Multiplier: 9.0
LDT Frequency: 5x
Intel SpeedStep: Disabled
Virt Technology: Disabled
Limited CPUID MaxVal: Disabled
CPU Thermal control: Disabled


Voltages set @
Vcore: 1.36250
CPU VTT: 1.40
Memory: 2.11
bro4: 1.20
1.2 HT: Auto
NB: 1.66
SB: 1.55
gtluref: 0.68x VTT

Nvidia GPU Ex Disabled

Could someone please let me know if my voltages are safe? specifically my NB and SB.

Running Prime95 for stability as of right now. Successfully shut down pc and booted up with these settings.

So, how'd I do on my first OC?? :D
 

My Computer

System One

  • CPU
    Intel Core 2 Duo 3.0Ghz (E8400)
    Motherboard
    Asus P5N-T Deluxe
    Memory
    OCZ Platinum 8GB
    Graphics card(s)
    BFG Geforce 9800GTX OCX\BFG Geforce 9800GTX OC [SLI]
    Sound Card
    Integrated
    Monitor(s) Displays
    Samsung T220
    Screen Resolution
    1600x1050
    Hard Drives
    Seagate 500GB
    PSU
    Corsair 750W
    Case
    Antec 1200
    Cooling
    7 Fans, ASUS Triton 79 Edition (for cpu cooling)
    Mouse
    Razer Krait
    Keyboard
    Logitec G15
The vcore looks alright, but the N.B looks high. Do you have any active cooling on it? ie a fan on the NB heasink?
 

My Computer

System One

  • Manufacturer/Model
    Self Built
    CPU
    i7 3770K HT ON 4.7GHz
    Motherboard
    P8Z68 Deluxe Gen 3
    Memory
    8GB G.Skill Ripjaws X 2133mhz
    Graphics card(s)
    2x Gigabyte GTX 670 OC WindForce SLI
    Sound Card
    X-FI Forte + ATH-AD900
    Monitor(s) Displays
    x2 Dell U2410 / 58" Samsung / "40 Sony
    Screen Resolution
    1920*1200 / 1920x1080
    Hard Drives
    2x Intel 520 240GB * Crucial M4 128GB * 2x Samsung F3 1TB (RAID 0) * 2x WD Caviar Blacks 2TB (RAID 0)
    PSU
    Corsair AX1200W
    Case
    Lian Li PC-V1020A
    Cooling
    NH-D14: 3x140mm Gelid Wing 14: Sunbeam Rheobus Extreme
    Mouse
    Razer Imperator + Thermaltake Theron
    Keyboard
    Topre Realforce // Ducky Shine Cherry MX Black
    Other Info
    Laptop Specs: Clevo Sager P170HM // 17.3 Matte 1920x1200 // i7 2720QM // 8GB 1333mhz // Dedicated GTX 485M // 240GB Intel 520 + 750GB + Blu-Ray // Samsung Story 2TB USB 3.0
smarteyeball said:
The vcore looks alright, but the N.B looks high. Do you have any active cooling on it? ie a fan on the NB heasink?
Click to expand...

yes, but i managed to lower it a little anyhow :)
 

My Computer

System One

  • CPU
    Intel Core 2 Duo 3.0Ghz (E8400)
    Motherboard
    Asus P5N-T Deluxe
    Memory
    OCZ Platinum 8GB
    Graphics card(s)
    BFG Geforce 9800GTX OCX\BFG Geforce 9800GTX OC [SLI]
    Sound Card
    Integrated
    Monitor(s) Displays
    Samsung T220
    Screen Resolution
    1600x1050
    Hard Drives
    Seagate 500GB
    PSU
    Corsair 750W
    Case
    Antec 1200
    Cooling
    7 Fans, ASUS Triton 79 Edition (for cpu cooling)
    Mouse
    Razer Krait
    Keyboard
    Logitec G15
That's good mate :)

The general NB consensus with that chip seems to be that up to 1.4 is safe and anything over 1.5 is starting to ask for trouble ;)

With my chip, any thing over 1.4 is usually a good way to kill it quickly :p
 

My Computer

System One

  • Manufacturer/Model
    Self Built
    CPU
    i7 3770K HT ON 4.7GHz
    Motherboard
    P8Z68 Deluxe Gen 3
    Memory
    8GB G.Skill Ripjaws X 2133mhz
    Graphics card(s)
    2x Gigabyte GTX 670 OC WindForce SLI
    Sound Card
    X-FI Forte + ATH-AD900
    Monitor(s) Displays
    x2 Dell U2410 / 58" Samsung / "40 Sony
    Screen Resolution
    1920*1200 / 1920x1080
    Hard Drives
    2x Intel 520 240GB * Crucial M4 128GB * 2x Samsung F3 1TB (RAID 0) * 2x WD Caviar Blacks 2TB (RAID 0)
    PSU
    Corsair AX1200W
    Case
    Lian Li PC-V1020A
    Cooling
    NH-D14: 3x140mm Gelid Wing 14: Sunbeam Rheobus Extreme
    Mouse
    Razer Imperator + Thermaltake Theron
    Keyboard
    Topre Realforce // Ducky Shine Cherry MX Black
    Other Info
    Laptop Specs: Clevo Sager P170HM // 17.3 Matte 1920x1200 // i7 2720QM // 8GB 1333mhz // Dedicated GTX 485M // 240GB Intel 520 + 750GB + Blu-Ray // Samsung Story 2TB USB 3.0
Gratz!

Very impressive.
 

My Computer

System One

  • Manufacturer/Model
    My build
    CPU
    Core2Quad Q9550 yorkfield C1 3.8G
    Motherboard
    GIGABYTE GA-EP45-UD3R
    Memory
    8gig Kingston HyperX 8500 CL5
    Graphics card(s)
    Gigabyte GTX280 1G...generally stock.
    Sound Card
    onboard
    Monitor(s) Displays
    Samsung 24" 2433bw + Benq 19" FP91G+
    Hard Drives
    2 x Samsung 500G Raid0 1 x Samsung 1TB 32
    PSU
    Thermaltake Toughpower 850W
    Case
    Antec twelve hundred.
    Cooling
    Air...a lot of air. Thermalright 120 push/pull,8 case fans,
    Mouse
    Logitech G5
    Keyboard
    Logitech G15
    Internet Speed
    ADSL2
Nice one. :D

Things to look at there would be the Vcore and the NB voltages. They are higher than i would be comfy with but check your temps using CPUID as long as the temps arent too high you should be OK.
 

My Computer

System One

thats not too shabby , nb and sb voltages are always a "suck it and see" thing you'll soon know if there set too high ;)

see if your overclock is REALLY stable , run this for 8 passes maximum stress

IntelBurnTest v1.6 download from Guru3D.com

dont take your eyes off your temps!!! :p

oh and as the readme says "its at your own risk" ;) ;)
 

My Computer

System One

  • Manufacturer/Model
    Custom Build
    CPU
    Intel Q9550 @ 4Gig / Titan Fenir
    Motherboard
    XFX 780i
    Memory
    4GB OCZ PC2-8500C5 DDR2
    Graphics card(s)
    Gainward GTX260/216 SLI
    Sound Card
    Creative X-FI Xtreme Gamer
    Monitor(s) Displays
    Dell UltraSharp 2209WA 22"
    Screen Resolution
    1680x1050
    Hard Drives
    western digital raptor 10000rpm sata
    PSU
    OCZ Modstream 700w
    Cooling
    Titan Fenir
    Mouse
    Logitech G5 Gamer
    Keyboard
    Razer Reclusa
    Internet Speed
    8mb
Only use the Intel Burn Test if you have at least 20C headroom over your load temp when running Prime95 or Orthos.

Intel® Core™2 Duo Desktop Processor E8400 - SLAPL

Intel says that for the E8400 the max safe temp is 72.4C. So in Prime95 or Orthos you only really want to be 50-55C. Anything over that and you may overheat your chip.

The Burn Test is very effective but uses the CPU so aggressively that once you start you can't stop it. Usually, everything freezes until the test is over. CoreTemp stops reporting temps after a second or two but my CPU is already 65+ by that time.

Have fun :D

Note: It may show up as a virus (on AVG it does) but this is a false alarm.
 

My Computer

System One

  • Manufacturer/Model
    Custom Build
    CPU
    E6750 @ 3.6GHz
    Motherboard
    Gigabyte P35 DS3
    Memory
    4GB 8500C5D
    Graphics card(s)
    POV GTX285
    Sound Card
    Onboard
    Monitor(s) Displays
    19" Widescreen LG
    Screen Resolution
    1400x900
    Hard Drives
    2 x WD 500G
    PSU
    Coolermaster Silent Pro 700M
    Case
    Antec 900
    Cooling
    Tuniq Tower 120 LFB
    Mouse
    Logitech MX400
    Keyboard
    Logitech EX110
    Other Info
    Graphics Driver - 190.38
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