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

Hey, How do I test all four cores at once? I ran Orphus two seperate times (seperate folders) but It only tests the same two cores, My CPU at stock in AI Probe says around 26-28degress but in (RealTemp) core temp they all hanging around late 50's when testing 2 cores with blend, is this high? when idle they are about late 40's or 51ish. Is this normal?

What is the safe/stable highest temp of these cores, So I know what to aim for when OC'ing and testing.

ATLANT3AN

Using Thermalright Ultra 120 Extreme


Just use Prime95 v25.X, it will test all 4 cores without messing around.

AI Probe is not to be trusted, use realtemp when trying to get a half reliable temp reading with these processors. Try to keep under 70c load.
 
What voltages have people been running QX9650's at then?

Same silicon right?

Having played with both chips there are totaly different, The QX9650's must be cherry picked with all the crud going into Q9xxx range. The QX9650 is really worth the cash when looking at its overclocking range compaired to the normal 45nm quads. I was hopeing they would just be a multi locked clone of the QX9650 :(
 
Had a strange thing happen to me with this Q9300.
I read about a FSB hole at around 460-475 so me being me, thought I will give that a try at 480fsb.
So I bumped the voltages up and up it booted into Vista, tried to run 06 and after second test It crashed and I got all lines across the screen.
Thought OK then give it some more cpu volts just for a quick bench so give it 1.5v in bios, a lot but with vdroop not for a quick test, anyway it failed again with same lines.
So that was that, went to boot at my old settings that where perfectly fine before, will not work at all.
Can still get my old overclock, but have to set volts on auto for it to work.
Anyone have any ideas as to why this would be.
At least it is working was worried though as I thought I would be at stock settings and that is nearly 5k difference.
 
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i know someone who's volts wouldnt work right after a failed overclock, he had to change it by 1 increment or something, think he had an msi board. u using latest bios? which board u got?
 
I am trying to overclock my Q9450 as of now.

Is 1.2..v perfectly safe and has no affect on lifespan can someone confirm this? Also I understand the differences now in the temp readings.

The recommended maximum temp that Intel allows these (Q9000 Series) to be run at is 71.4degrees, but that is using the center of the CPU, Realtemp and others use the temp in between the cores which is 10-15 degrees lower than the cores themselves as seen with Core Temp and other such apps (CPUZ Hardware Monitor).

But AI Probe and Intel use the temperature at the center which is perhaps 20 degrees lower than actual temp, so 71 degrees max temp becomes 90degrees max temp that these can run at although I would say below 85 degrees is the true limit when using CoreTemp.

My Cores run at top end 40's when idle and top end 50's when running PRIME95 on all cores so I am 30degrees within the limit so I am not worried about temperature apart from the fact the hotter it is the less stable.

I have reached 3400 but AI Probe report the DRAM and the fsb termination are too high (marked red), this is what they are running at higher than I set.

DRAM 2.08
fsb termination 1.04

These are manually set lower but it seems they are pushed higher, I am using a 1.2v as 1.19 does not let my machine boot properly, windows loads but then restarts. What do you recommend I do to get stability at 3400?

ATLANT3AN
 
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I think it relates fine to the topic of overclocking these, running the CPU at 1.224v has produced stability now, running prime95 stable on all four cores although reaching 3400 has raised my temps to low 50's at idle and low 60's at full load, increasing the temp by 10degrees for an extra 800mhz.

All temps taken from CoreTemp, so still within 20degrees of the Intel Maximum temp guidelines, wondering if its worth going for 3600mhz now :).
 
ATLANT3AN, best thing to do is see how well it responds to more vcore, if you find your upping the vcore considerably to get it stable at 3.5-3.6GHz you may just be best leaving it at 3.4GHz. In all reality the difference between 3.4 an 3.6 is nothing buddy.
If it was me I would push it a little more and limit myself to 1.35-1.4v or 70c, which ever comes 1st.

Banny, are you sure your system was 100% stable before you upped the clock and vcore. You may have just never had it completely stable in the 1st place.
 
I have sorted my problem by resetting cmos, all settings work again, was too high temps on auto.
Yeah it was stable. hours upon hours of gaming is stable to me, like playing GTR2 for over 6hrs, if that isn't stable nothing is.
Anyway all is fine again, didn't like 480fsb at all
I must add, this was stable with all my fans on my P182 at the lowest settings
 
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I have sorted my problem by resetting cmos, all settings work again, was too high temps on auto.
Yeah it was stable. hours upon hours of gaming is stable to me, like playing GTR2 for over 6hrs, if that isn't stable nothing is.
Anyway all is fine again, didn't like 480fsb at all
I must add, this was stable with all my fans on my P182 at the lowest settings

I’d advise giving it a quick stability test with prime though. I did a mini endurance race in GTR2 with a buddy, the same day I fired up Crysis and the system rebooted within seconds of playing the game. Sure enough it wasnt prime stable.

Certain games (well most) just won’t stress a quad core at all.
 
Ran PRIME95 for an hour, no problems, played STALKER and the only issue I get as with both PRIME95 and STALKER is that the north bridge and sometimes the southbridge go to 45degrees or 46-47 which causes AI Probe to sound an alarm, I have read that those volts are fine and my CPU should be able to handle it no problem and most have theirs higher than that can anyone confirm/deny this?

Mobo 30d
HD's 29d
GPU 55d
CPU Cores 50's Idle, 60's PRIME95

Also, now that I am reaching 3400 does that mean my £200 CPU is more powerful than a stock £1000 CPU? that runs at 3.2ghz the 6770 OR 6750 unsure on exact title?

Thanks
ATLANT3AN
 
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