Biostar I45, Q8400 (overclock help)

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Hi guys, Ive read basic guides etc to overclocking, and still my head pops when talking about changing voltages... Mhz's etc etc.

I have a Biostar tpower I45 Motherboard, Along with a 8400 @3.00Ghz, And 4Gb gold edition 1066mhz OCZ ram.

I want to take my processor to around 3.6 - 3.8ghz

I have a tuniq 120 cooler, and an antec 900 (2) with the big ass exhust fan at the top taking the air from the tuniq, Idle temps sitting at 25-28 celcius??

Could someone give me very basic steps to overclock my Processor to my wanted speeds, what options to enable/disable etc etc.

(again ive gone through numberous threads, about my mobo and Ocing, but still) :rolleyes::D

Cheers. Lewis
 
ive got the t-power welcome to the club ;)

ive got an E8400 at 4ghz and ive not had to change the voltage much

You want to go to the O.N.E tab in the bios

BIOSI45-18.jpg

looks like this

change the clock navigator to manual

the go down to CPU Fqz

then slowly bump it up i would expect that you can go straight to 3.8 with out much difficulty

but im not sure what the CPU Multi is on your chip
 
So i just bump it up to 360 or 380 ? no need to change volts etc etc etc... do i keep all the volts on auto ? Im just not sure!! :S
 
ive got the t-power welcome to the club ;)

ive got an E8400 at 4ghz and ive not had to change the voltage much

You want to go to the O.N.E tab in the bios

BIOSI45-18.jpg

looks like this

change the clock navigator to manual

the go down to CPU Fqz

then slowly bump it up i would expect that you can go straight to 3.8 with out much difficulty

but im not sure what the CPU Multi is on your chip


So you have the voltage set to auto still? That just means the mobo is changing the mobo to suit your clock.
 
*sitting twidling thumbs* .. Can anyone just confirm, if i want to get to 3.6ghz.. i just change the cpu mhz from 300/333 to 360??? without doing anyhting else ?? I have no idea what to do, and am patenly waiting for someone to shed some light for me.. so i can begin :] dont want to be sitting all night :eek::D
 
Ok every chip/mobo/etc etc even though the same model will not be exactly the same. You should read this first and try and get your head around it alittle. You probably wont understand a lot of it to start but the more you read and then have a play around to understand how the bios works and effects things. If you change it from 333 to 380 then i would say you would still be stable on stock volts. I have no idea what memory you have but that wants to be kept at its rated voltage and its rated timings but below its rated speed untill you have the desired OC on your CPU. Idk what cooling you have either but 3.8Ghz should be attainable on the stock cooler.
 
cheers!

My cooler is tunq tower 120... antec 900 (2) 2 intake 2 exhaust

ocz 4gb dual channel kit, 1066mhz gold series..


So i take it ill just stick it up to 3.6i or 3.8.. and when im there about, i set my ram to its 1066mhz ?

Cheers. even that little bit has done me good ;]
 
Tbh dude i would expect to get 4Ghz on that cooler with not that much of a voltage bump. Leave your ram running under 1066mhz until you have fully tested the stability of the CPU OC. Make sure you set the rated voltage of the RAM manually. Just dont take your CPU voltage much over 1.4v and keep temps under 70c if you can. Aim for 4Ghz as its a nice round number.
 
Do you have a quad or a dual core?

I haven't heard of a Q8400, there's a Q9400, or is it an E8400 :confused:
 
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Happy take a look at the thread title. :D

Ok I'll assume it's either a Q8200 or a Q9400. Either way it won't reach 4Ghz, It 'might' do 3.8Ghz but more likely 3.6Ghz. Since they have a low Multi either 7x or 8x you need a high FSB for overclocks, however mobos don't like high FSBs with quads. For 3.8Ghz a FSB of 475 is needed, and that would probably take more than just tweaking vcore.
 
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sorry i didnt reply before, i dont know if you got any further with this or not but,

to start with slowly up the fsb by 5mhz leaving alone and then run a stress test like intel burn (at least 5 cycles on full load) then maybe abit of 3dmark just to be sure

then once it starts to fail then you need to look at slowly bumping the voltage up but untill then thats your free speed. :D
 
Happy, sorry its an E8400 @ 3.00Ghz.

Your last post seemed to be gettign through to me, but could you post again with relevant knowlage you have of an E8400 :p
 
In that case you should be able to hit 4.00Ghz :D

Tbh dude i would expect to get 4Ghz on that cooler with not that much of a voltage bump. Leave your ram running under 1066mhz until you have fully tested the stability of the CPU OC. Make sure you set the rated voltage of the RAM manually. Just dont take your CPU voltage much over 1.4v and keep temps under 70c if you can. Aim for 4Ghz as its a nice round number.
 
at the moment its at 333 * 6 multiplier... = 1.9ghz.... ( in bios) and cpuz shows the clock speed as 1999.1mhz.... ive not touched the clock yet.. it was like this out of the box... any idea why ? is this the power saving c1 thing ?


Ok so if i put it to 400FBS * x9 multi .... 3.6ghz.... and have ram at what 800 or 1066mhz ? or shall i put the processor to 3.8? ... 422/423 FBS * x9 multi...... volts to 1.27 ?
 
Hi
The important feature on this board is the FSB [BSEL] to Northbridge latch.
Set it to FSB 1333
My guess is you know what you are doing and this is holding you back but........

As per earlier posts you should up your clock gradually but if you are impatient like me and want to try 3.8 at your own risk try these settings:
Intel Speestep disable
Ratio CMOS setting x9.0
CPU freq 425
FSB [BSEL] to Northbridge latch FSB 1333
FSB compensation fine tune disable
DDR2 enhance mode disable

Change page to DRAM timing configuration
Configure DRAM timing by spd enable

As posted earlier you can try voltages on Auto and these may adjust as required for your clock but if you want to set them try these at your own risk:

Change page to Voltage configuration
CPU +0.075
DDR + 0.200
Chipset + 0.075
FSB Auto
CPU PLL voltage 1.5v

Use Prime95_p64v259 (in-place large FFT's test) to test for stability (thats if it starts lol) and monitor your temps. I think 70 is too high if you are planning to keep your CPU for quite a while and would stay below 60 degress under load.

Good luck
 
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