Overclocking Intel Core 2 Quad Q8300

Hello guys!

I'm looking around the internet about overclocking my quad. What i read was that everyone is fine overclocking it to about max FSB frequency of about 400 and so. So i decided to tune it a bit every time. I increased the FSB for about 10 and if it started to windows i did another 10. Until it didn't start. Then i went by 5 and so on. Got to the max value of my FSB of like 361 which is not really much overclocked... So my question to you guys is...is there a way to overclock it more?

Intel Core 2 Quad Q8300
ATI Radeon HD4870

Also i've put on some arctic cooling mx-3 paste on both GPU and CPU (if that helps...not sure it will xD)

Thanks for any answers you may provide!
6 answers Last reply
More about overclocking intel core quad q8300
  1. Boot at FSB 361, run Prime95 for 15 Minutes, if it fails go into BIOS and increase Vcore slightly, also check that your RAM isn't running to far outside its rated spec. Boot into Windows and try Prime95 for 15 minutes again.If its stable up the FSB and repeat the process... Obviously keep an eye on the temps under Prime95 and don't go crazy on the volts.
  2. So yea

    I ran Prime95 for bout 15mins...self test 1024k was successful. Now id like to continue onto next stage of your post. Increasing core voltage...well i do know how to do that but mine is currently set to auto so i have absolutely no idea what are safe voltages for my cpu atm. Also i have my ram frequency set to auto due to my ram being 800mhz and the only closest options available are 720 and 900 (about that number).
  3. Bump.
  4. The idea with voltage is to set the lowest possible stable setting. You can try starting with something like 1.3v and start raising the FSB slowly from there. Leave the voltage where it is until you get a rounding error in prime95. At that point you have a few options, lower the FSB and call it a day,raise the voltage one notch and call it a day, or raise both and continue overclocking. You should be able to do 400fsb X 7.5(your multiplier) for 3000ghz at around 1.3 volts on the cpu no problem, probably less, but not a bad place to start. Make sure to monitor temps as you go along.

    If you want to go higher than 400fsb you might have to loosen the ram timings as you will be effectively overclocking your ram at that point. Depends on the ram and what voltage your running through them.
  5. Field Value
    Computer Type ACPI x64-based PC
    Operating System Microsoft Windows 7 Ultimate
    OS Service Pack Service Pack 1
    Internet Explorer 9.0.8112.16421
    DirectX DirectX 11.0
    Computer Name MAD_GDI_2011-PC
    User Name MaD_GDI_2011
    Logon Domain MaD_GDI_2011-PC

    QuadCore was at 2.5gh.z
    CPU Type QuadCore Intel Core 2 Quad Q8300, 3000 MHz (7.5 x 400)

    Motherboard Name ASRock P43DE

    System Memory 8192 MB (DDR2-800 DDR2 SDRAM)
    DIMM1: Kingston " 2 GB DDR2-800 DDR2 SDRAM
    DIMM2: Kingston " 2 GB DDR2-800 DDR2 SDRAM
    DIMM3: Kingston " 2 GB DDR2-800 DDR2 SDRAM
    DIMM4: Kingston " 2 GB DDR2-800 DDR2 SDRAM

    Video Adapter ATI Radeon HD 5700 Series (1024 MB)

    Audio Adapter ATI Radeon HDMI @ ATI Juniper/Broadway - High Definition Audio Controller
    Audio Adapter VIA VT1708S @ Intel 82801JB ICH10 - High Definition Audio Controller

    C: (NTFS) 1397.2 GB (895.5 GB free)
    F: (NTFS) 98 MB (85 MB free)
    H: (NTFS) 372.6 GB (32.6 GB free)
    d: (NTFS) 1397.2 GB (1397.2 GB free)

    Field Value
    Sensor Properties
    Sensor Type Winbond W83667HG (ISA 290h)
    GPU Sensor Type Diode (ATI-Diode)
    Motherboard Name ASRock P43DE
    Chassis Intrusion Detected Yes

    Motherboard 28 °C (82 °F)
    CPU 27 °C (81 °F)
    CPU #1 / Core #1 40 °C (104 °F)
    CPU #1 / Core #2 30 °C (86 °F)
    CPU #1 / Core #3 39 °C (102 °F)
    CPU #1 / Core #4 34 °C (93 °F)
    Aux 62 °C (144 °F)
    GPU Diode (DispIO) 28 °C (82 °F)
    GPU Diode (MemIO) 34 °C (93 °F)
    GPU Diode (Shader) 33 °C (91 °F)
    SAMSUNG HD154UI 18 °C (64 °F)
    Seagate ST3400832A 45 °C (113 °F)

    Cooling Fans
    CPU 2009 RPM
    Chassis 1042 RPM
    GPU 35%

    Field Value
    Graphics Processor Properties
    Video Adapter XFX Radeon HD 5770
    BIOS Version
    BIOS Date 01/15/10 04:41
    GPU Code Name Juniper XT
    Part Number 113-HD577XZNF83-113-C01301-007
    PCI Device 1002-68B8 / 1682-2991 (Rev 00)
    Transistors 1040 million
    Process Technology 40 nm
    Die Size 170 mm2
    Bus Type PCI Express 2.0 x16 @ x16
    Memory Size 1 GB
    GPU Clock 920 MHz (original: 850 MHz)
    RAMDAC Clock 1380 MHz
    Pixel Pipelines 16
    TMU Per Pipeline 1
    Unified Shaders 800 (v5.0)
    DirectX Hardware Support DirectX v11
    Pixel Fillrate 2512 MPixel/s

    Memory Bus Properties
    Bus Type GDDR5
    Bus Width 128-bit
    Real Clock 300 MHz (QDR) (original: 1200 MHz)
    Effective Clock 1200 MHz
    Bandwidth 18.8 GB/s

    GPU 0%

    i got this pc on 1st jan 2010

    this is my first pc Build
    and i am very happy with it

    it is 3x faster then a ps3
    or xbox360 :)

    and 6x faster then a pc
    that u get from the shop

    this pc is a intel quad core 2.5GH.Z
    Q8300 running at 3.0GH.z

    8GB of kingston gaming ram

    motherboard is a asrock p43de
    chipset intel p45/p43/g45/g43
    southbridge intel 8280jr

    ATI high definition Audio sound chip set

    and ATI xfx radeon 5770 with 1GB of
    DDR5 ram that is the graphics card..

    2 dvd rewriter
    the hard drive is x2 1.5 TB lol......

    Antec True Power Quattro 850 Watt Power Supply

    i put in the pc 14 fan's with light's

    and i am running windows 7 64-bit ultimate
  6. Safe voltage is 1.45 volts.

    You should have some kind of BIOS setting to decrease your memory clock so you are running at a 1:1 FSB:RAM ratio.
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