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Trouble OC'ing Intel Q9300 - Please Help!

Last response: in Overclocking
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December 11, 2008 11:56:36 PM

I am trying to overclock my brand new computer but I am having some troubles... I read a lot of guides on this site before attempting it myself, but it's not working out so well...

Here's my system specs:

- Thermaltake M9 Case
- Coolmaster Real Power 750W Power Supply
- Windows Vista home basic 32 bit OEM
- ASUS P5QL-PRO socket 775 Motherboard w/Intel P43+ICH10
- 2.5 Ghz Intel Core 2 Quad Q9300 Processor
- Kingston DDR2-1066 Dual-Channel RAM 4Gig Kit (2x2Gig)
- Zotac NVIDIA GeForce 9800 GX2 Display Adapter (2x) PCI-E GPU
- DELL SP2008WFP Monitor
- Creative SB X-FI Titanium Pro Sound Card
- Seagate 1TB Hard Drive

Basically I'd like to overclock my CPU, RAM, and Video Card as far as they can go (remaining stable) for permanent long term use...
I don't use ASUS AI booster to overclock, only the BIOS, as AI Booster seems to have a bad reputation for overclocking accurately...
So far I have only been able to get my CPU up to around 3Ghz.. I really don't know if my settings are proper tho, as my CPU speed (shown in CPU-Z.exe) keeps switching back and forth between 2400.0 Mhz and 3001.0 Mhz (approximately)...

If there is any experienced Overclockers out there who can help me get my system working top notch, I'd greatly appreciate some help :) 

December 29, 2008 2:08:49 PM

I believe that cpu has a 7.5 mult, so your going running you fsb at 400 to reach that 3ghz level. That motherboard is only rated for fsb 1600 so you are right at the rated limit. You will most likely need to start looking at voltage for your northbridge if you intend to continue increasing your overclock. However you will most likely not be able to get past about 3.2ghz

December 30, 2008 10:24:02 AM

yeah, i've got it stable at 3Ghz.. I set my FSB to 400, and my voltages as high as my bios will allow me.. I only OC'd my graphics card (GeForce 9800 GX2) to 640... now i can finally run Crysis on highest fairly smoothly... :p 
!