CPU temp question

[DemonNeno]

Hey all, I recently installed a 5000BE on my Tforce550 v1 board. I used to run at 3800+ on this board, which ran at a cool 18C. The 5000BE is backed up by a AC Freezer64 Pro using the AC supplied thermal paste. The case is cooled by a front 120 fan, a 80mm side fan, and two rear 92mm fans. Airflow is directed towards the rear of the case from the front. It seems as though my 5000+ may be reading incorrectly, but it's idling at a hot 40C. OCed (set at 14.5x200) it's idling at 39-46c. Now here's the odd part. These are all according to my Biostar Hardware utility. Let me give you a run down of the temp proggies I use and the randomly different temps im getting. Temps are listed as most current readings.

Biostar Hardware Utility

CPU: 39c
Fan 1896-1917RPM

---------------------------
Speedfan 4.33

HD0: 35c
Temp1: 40c
Core: 16c
Temp: 1c
Temp1: 127c (!!! And this never changes from bootup..?! Same at stock timings)
Temp2: 34c
Temp3: 38c
Core: 41c

---------------------------
Core Temp 0.97.1

Core #0 : 15c
Core #1: 14c

The system I am running is as follows:

5000+ BE w/ AC Freezer 64 Pro
Biostar Tforce 550 v1 (Bios N5TAAB16 Beta w/ 5000 support which unlocks multipliers)
4gb Crucial XMS2
Asus 9600GT
WinXP Pro (32bit)
AMD Optimizer drivers installed

The temps were just as high before the bios flash, which was performed to simply unlock the multiplier in bootup bios. This, by the way, worked without any problems to be seen.

Any input? These temps seem rather drastically different..? I know this Tforce550 is supposed to run hot, but 127c?! Something seems wrong with that reading as it's the only stable as a flatline reading of the 8 readings. Grr...

I've heard of people having problems with the Freezer64 pro not seating properly onto the CPU. From the looks of it, it was one there evenly, with a edge slightly misaligned. I couldn't get it to seat any better, though. I wouldn't be so worried if the temps were sub 35c, but these temps easily increase 15c under full gaming load... Any input is greatly appreciated!!

 

[DemonNeno]

No one has any input?? :\

 

[nomagic]

What is your ambient temperature? (case temperature, room temperature) I am so curious.

My e2140 OCed to 3.2ghz idles at exactly 40c when the ambient temperature is 25c. After an hour of orthos, the temp goes up to 55c max as reported by coretemp.

How do you get 18c with your old 3800+?

 

[DemonNeno]

That's the weird thing, I have no clue how or why my 3800 idled as such a low temp. Again, Speedfan and the biostar utility were used to check temps. A OE cooler was used. My case temp was a bit cooler before my 5000+ upgrade, but i suppose that has to do with the GPU and RAM upgrade. Previous case temps were actually HIGHER than the cpu temp. The OE cooler utilitized AC3 thermal paste. Before, the case temp was roughly 22c, it is now about 30c. I used to run 1GB ddr2 800 stick and a 6600gt. No overclocking at all. I'm not sure what my room temp is, but the pc is in my bedroom and it's usually pretty cool in there. I'd say it wasn't much warmer than 68-72f in my room.

My main concern isn't just the cpu temp, but how much it flunctuates. About 5-10c, which is abnormal to me of the dozen personally used pc builds I've completed. max temp under a stress test resently presented me with about 55c OCd to 2900mhz. This was using a 14.5 multiplier w/ stock clocking for the bus. I'm reformatting my system tonight to run a 64bit OS just to see how much of a performance hit it'll take. I never actually reformatted with the new CPU install, but never had inaccurate temp readings from such a thing. Both CPUs were AM2 64s. This one is just faster. I'll post on here after I vista64 loaded. If that doesn't make a difference, i'll smear on some AS5 on the cooler and break it in before posting the findings. If this thing were low 30s, I'd be happy. I just dont like the CPU sitting in the 50s under load. In fact, I think that' pretty unimpressive for the cooler running late 64 chips.

 

[bryanW1995]

core temp needs a 15c adjustment, otherwise it is correct. speedfan doesn't give accurate readings for brisbane chips in my experience. using that, you're idling at 29c/30c. btw, there's no way you ever idled at 18c unless you had the cpu in the refridgerator since 18x1.8 + 32 ~64f.

edit: iirc, core temp is 15c off on tjunction. just change it to delta to tjunction and you'll see the difference. For example if it displays tjunction as 85c and shows a 20c temp, it would display 65c as the delta to tjunction. however, it tjunction is SUPPOSED TO BE 100c, it would still report delta to tjuntion as 65c but would display 35c as the actual temp if coretemp had tjunction correct.

 

[DemonNeno]

Well, apparently The Brisbane CPUs have core temp issues. CoreTemp gets a errored reading on behalf of the CPUs DTS. Either way, Installed Vista 64, still running the same temps with a fresh boot. Treated the CPU to some AS5 and temps dropped down to a idling 39 @ 2900 (14.5x200). Not great, but this will work for now. Peaks about 50c under full load, it's been less than an hour since the AS5 has been applied, hoping to shave a few more degrees after this stuff sets in a bit better.

EDIT: Is the TCase reading on Core Temp a Intel thing? My 5000+ BE doesn't give me a Tcase reading at all. Grr..

 

[DemonNeno]

Upgraded the mainboard to a Biostar TA770 A2+. General impression is two big thumbs up. Im able to run Vista 64 with the cpu OC'd to 3.0 stable as could be, max temps now reach 49c and idles inbetween 28-32c. Next project will be a new PSU, which seems like a feasible culprit to bottlenecked OC'ing speeds. Another nice feature with the TA770 is a seperate onboard power feed for the PCI-e slot.

All in all, it's safe to say the Tforce 550 v1.0 board wasn't as 5000BE friendly as I wish it would've been.