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***The Official Yorkfield Q9300/Q9450/Q9550 Overclocking Thread ***

3rd quarter price drops look interesting !!

Q9450 could be down to current Q6600 prices :) - nice

thats me waiting then !!

Direct conversion is never true for UK market, Q9450 with the price cut is going to be around £160-170 and Q9550 is about £200-ish. Reasonable IMO compare to what they're being sold for.
 
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Sounds a bit high for stock speeds. These chips do run a lot cooler than the Q6600's.

Check your fan speed as it may be running low, or maybe re-seat your cooler with less paste.

i thought maybe its just my cooler. but still i think there pretty high temps. and i seated it with AS5 etc in a small bead across the cores. maybe i should crank my case fans up to max too? :confused: if all else fails i can try re-seating it. :rolleyes: is that your reccomnedation?

Although running Real Temp im now getting readings of 38 - 40 at idle.
 
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[KH]Shadow;11758090 said:
i thought maybe its just my cooler. but still i think there pretty high temps. and i seated it with AS5 etc in a small bead across the cores. maybe i should crank my case fans up to max too? :confused: if all else fails i can try re-seating it. :rolleyes: is that your reccomnedation?

Although running Real Temp im now getting readings of 38 - 40 at idle.

I too get high idle temps on my Q9450 around 40c with a watercooling setup but have just got a QX9650 and this idles at 29c at 4ghz.
 
so is my chip meant to idle at 38-40c and under load it gets to about 52c on one core and about 49c on all the other cores. as i still am meaning to overclock as it can reach 3.2 on stock volts but need to keep the temp down. i am using my silent knight II and Arctic Silver 5, and was just expecting lower temps. or maybe i should get a Tuniq Tower, would this deliver much of a decrease in temp? need to find a solution. :/

And as for case cooling being an issue, i have my Antec 900 fans on middle setting so is pretty cool anyway.
 
[KH]Shadow;11794492 said:
so is my chip meant to idle at 38-40c and under load it gets to about 52c on one core and about 49c on all the other cores. as i still am meaning to overclock as it can reach 3.2 on stock volts but need to keep the temp down. i am using my silent knight II and Arctic Silver 5, and was just expecting lower temps. or maybe i should get a Tuniq Tower, would this deliver much of a decrease in temp? need to find a solution. :/

And as for case cooling being an issue, i have my Antec 900 fans on middle setting so is pretty cool anyway.

Those temp are fine. As long as you keep the load temps under 60 then you will be fine. For me i don't think my idle temps are even that accurate, but my load temps seem more reasonable. It might be your idle temps need to be set in real temp with the calibration.
 
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yea my idle temps do seem a little higher than expected to be honest. aswell as the jump from idle to load is hardly a lot i dont think there entirely as accurate as the load temps. also my bios reports slightly lower temps at idle obviously of around 36.

Also this is another problem i have trying to even get my settings correct. i have my CPU FSB set to 1333 and its on auto at the min. and my memory timings are correct but the setting for memory fsb is at 1066, when i up it to the correct frequency of 1333 and put the CPU/Mem on synced to achieve 1:1 it'll load to windows and then crash. :confused: unless i unlink the mem/cpu as i was recommended on this board, it'll be ok?
 
Finally got to overclock this baby...

Code:
CPU Type: Intel Core 2 Quad Core Q9300 2.50GHz clock speed, 6MB L2 Cache
CPU Clock: 3000.0 MHz  (original: 2500 MHz, overclock: 20%)
CPU Multiplier:	7.5x
CPU FSB: 400.0 MHz  (original: 333 MHz, overclock: 20%)
CPU VID BIOS: 1.2500 V
CPU-z VID: 1.2240 v

CPU TEMP: [Idle] 34°C 39°C 39°C 39°C - [Load] 42°C 46°C 46°C 46°C

CPU Heatsink: Thermalright SI-128 
CPU Fan: Noctua NF-P12 120mm 

MotherBoard: Nvidia 790i Ultra Tri-Sli [Bios P05)] 
Memory: OCZ 2GB DDR3 PC3-10666C7 1333MHz Platinum @ 1600 Mhz
Memory Timings: 800.0 Mhz CAS 7-7-7-24 2T  (original: 667.0 Mhz CAS 7-7-7-20 1T)
Memory VDIMM: 1.800v
 
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Hello all time I joined this thread.

I seem to be hitting a wall at 3.4ghz any advice appreciated.

The important bits
Q9550
DFI Lan Party DK X48 T2RS
8GB OCZ Platinum DDR2 1066

Ive Changed the following in the Bios

CPU Feature:
Everything off except Multi Core Processing
Dram Timing:
333/800
Voltage Settings:
CPU Special Vid - +137.5mv (CPUZ 1.360v)
Dram: 2.1v
NB Core: 1.517v (although im currently bringing this down)
CPU GTL 0/2 Ref Volt: 0.636X
CPU GTL 0/3 Ref Volt: 0.636X
CPU VTT: 1.39 (Nervous to put it higher after linky on here)

Cpu Clock Ratio 8.5x
Cpu Clock 400
Memory Currently at 960

Prime 95 Stable after 30 mins and Temp peaks at about 57oC

Any Suggestions on what I can do to Push it a bit more.

Cheers
 
Good bump. Forgot all about this thread.


Can you drop the CPU multi to x6 and see how high you can push the FSB? Shouldn't need to set the CPU voltage above 1.25v on such a low multi.
 
Hmm it doesnt like a lower Multi one Iota (Vcore @ 1.25) to me it just seems this Cpu is an absolutely power hungry beast, i tried 2.8 then dropped it to 2.4 still no luck with even booting.
 
:( after more tinkering it seems im gonna have to settle on 3.2ghz Stable, given what other people are achieving with X48 Mobo's and a Q9550 im a little dissapointed that I cant even hit 400fsb.


Im having to put 1.312v through the chip just to get here, I honestly dont think its the chip that is the problem but the mobo just doesnt seem upto the task of pushing it any further.

CPU Feature: Everything off except Multi Core Processing
Dram Timing: 333/800
VCore: 1.312
Dram: 2.125
NB Core: 1.517
CPU GTL 0/2 Ref Volt: 0.636x
CPU GTL 1/3 Ref Volt: 0.636x
CPU VTT: 1.39

Clock Ratio: 8.5x
CPU Clock: 377.2
DDR2 960

If anyone has any suggestions?
 
Do you need VTT so high? The chip and board *should* be able to do 400mhz with it maybe 0.02-0.04v above the stock setting.

Also try leaving the GTL's on auto.
 
Hello mate thanks for posting it is appreciated.

Right I managed to sit down and have a real go at FSB on the X6 Multi

I Set the Voltage to 1.28v which im happy to run through this chip

Max FSB was 420 so in theory im gonna be topping out at 3570mhz

To be fair im only looking for a modest Overclock of about 3400mhz, I can boot and get it to run stable the only problem is I need to connect my PC to an Anti Matter core to get it there.

I'll have a go with me best overclock setting and drop the VTT right down and see what happens, And I'll try to lower the Voltage.
 
This is my Best attempt im not prepared to put anymore through this chip

OverclockResults-1.jpg


got the VTT down to 1.2v
Cpu wants big leaps in Vcore for small gains after this so happy to sack it off at this point as I have no divine right to any clock increase over stock.
 
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I finally finished my new pc, and overclocked a bit as well.. Here's what I've achieved so far, looking promising. Although during the test the cpu hits ~65c, I've never seen it going above ~50 during video encoding, gaming, or whatever else, so I'm quite happy with the temperatures! :D

VID: 1.250v
VCore: 1.200v (Bios)
Idle: 1.176v (cpu-z)
Full Load: 1.192v (cpu-z)

q9550ocru1.png
 
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