unusually high q9450 idling temperatures

[Dangerer]

I've got a q9450 in a rocketfish by lian-li tower. The q9450 is using the aftermarket xigmatek HDT-S1283 cooler and with a thin layer of AS-5 applied according to the directions by AS-5 for quad-core CPUs. Right now I'm idling at 56C on all four cores. The heatsink is hardly even warm when I touch it though. These temperatures are recored using the latest editions HWMonitor and CoreTemp. When I check the bios, I get a much lower temperature, but it doesn't show all four cores.

picture of air flow
Text

edit:

okay tried to reapply AS-5 by putting a half grain of rice in the middle of each heat pipe of the hdt-s1283 (three pipes). current temps are

core#0 45C
#1 45C
#2 49C
#3 44C

I feel I may have to use even more AS-5 now, one thing I don't understand is that the heatpipe is not even warm when I touch it.

Btw I absolutely hate push pins, anyone know I can find screws to mount the heatsink?

 

[manimal]

Core temp reports the wrong Tjunction on these chips so if your only using core temp then offset the temps -10 degrees. Try using realtemp-there are links in this forum-it accurately reports Tjunction and will show you what the bios reports. Report back with your idle and load temps so we can oogle your Q9450

 

[jdkick]

You may also want to use a little extra thermal compound on the heatsink base itself. With the direct touch style coolers the base may not be completely flat... there may be gaps between the base/heat pipes. A little extra compound on the base can fill those gaps.

 

[Markfw]

Well, something sure is off. I have my X3350 (same as Q9450) OC'ed to 3.56 and using an XP90 cooler (mid to low end air cooling today) I idle at less than 50 ! So its not flat, not mounted right, or the wrong amount of AS5, I can;t say which.

 

[bryanW1995]

Originally posted by: manimal
Core temp reports the wrong Tjunction on these chips so if your only using core temp then offset the temps -10 degrees. Try using realtemp-there are links in this forum-it accurately reports Tjunction and will show you what the bios reports. Report back with your idle and load temps so we can oogle your Q9450

real temp is showing a tjunction of 95c on my e6750 while core temp shows 100c. which is it? Isn't the correct tjunction for Q9450 supposed to be 105c?

 

[socket462]

My Coretemp ( .97? I think) Shows 105 as the Tjunc-

Mine is idling in the low 40's- my MAX temps after 30 min of prime95 is 63 C - and that was only on one core.

Are we talking about ambient temps at all here? They can make a big difference on air cooling.

What is your voltage set at as well?

 

[aigomorla]

guys these chips are HOT when you crank the voltage.

Here is what i learned from my time playing with it on persephone.

Well, anything below 1.4V is doable for me, however when you pass this number things get out of control.

1.42 in bios 1.408Vcore ~ 4.2ghz on my processor at ambient @ intake 22C, Coolant Temp 25.3C, loads here:

http://i125.photobucket.com/al...orla/Clipboard01-1.jpg

4.4Ghz @ 1.44bios 1.428Vcore is about the upper limit my water setup will do without pushing into the 70C ranges at the given ambients under full load. [might need a block remounting, but voltage im not liking]

also anyone else notice the VID changing when you change multis?
@ 9x the VID shows up as 1.025






I tried playing with this chip and pushed her to 1.5V for a quick suicide @ 4.6 and well, my water setup was having a hard time keeping up with it. Seems like the heat load @ voltage is = but on a smaller foot print so its harder to cool down properly.



Anyhow this is the data i came out with while playing with a yorkfields. Each chip carries a YMMV tag, but its a good way to see what voltage numbers will associate with what kind of heat.

 

[Dangerer]

I'm running everything at stock, while idling, speedstep throttles my cores down to 2ghz. vcores are at 1.18, I get some pictures up of airflow in the case, but ambient room temperature is below 23C

 

[bryanW1995]

@aigo: judging by your pics I take it that tjunction is in fact 105c and coretmep .97.1 is accurate on yorkies.

That's a pretty large delta between 0/3 and 1/2. Does it always do that? lopri talked about changing the GTLREF settings to try to keep those numbers closer together in another thread.

 

[lytalbayre]

using a scythe ninja on an x3350 at 3.2ghz. idle is around 38c (one core is always about 10c higher than the others, go figure...). Under load, about 70c.

This is all with an ambient temperature of around 65-70f. Also, all measurements using HW monitor.

Your temps definitely seem high. I would remount the HSF and try again.

 

[aigomorla]

Originally posted by: bryanW1995
@aigo: judging by your pics I take it that tjunction is in fact 105c and coretmep .97.1 is accurate on yorkies.

That's a pretty large delta between 0/3 and 1/2. Does it always do that? lopri talked about changing the GTLREF settings to try to keep those numbers closer together in another thread.

I need another block remount.

I know the core heads are off, but i was really lazy doing another remount. Remember on my setup its not simple to remount the block. I made the loop somewhat complicated this time. You'll see it in my WIP when i post them.

But you guys need to check out the VID on different multipliers. I swear ive seen this thing change each time i changed multi on it. The lowest i saw @ 6x was like .8 something. The highest was 1.35 on the 15x when i was twiddling with it.

 

[bryanW1995]

that could very well be a feature of the QX9650 since most other Q9xx series cpus are unlikely to change the multiplier.