Mac Pro 4.1 @ Xeon W3570 - Temperatures

[Zurec]

Hey guys, i have spent some time hanging around in these forums to figure out how to successfully install a new cpu in my Mac Pro 4.1.

I chose to get a Xeon W3570, as there was a good deal on eBay, near mint condition for 150$.

Upgrade was very easy, and i was also quite happy with my results on the thermal paste. As is booted up for the first time, everything worked fine, and iStat showed my temperature around 37C° idle, 55C° under heavy load (encoding with handbrake for 15 minutes)

But as i installed TemperatureMonitor to test my Ram temps, i was shocked at the results: Even though iStat shows 55C° for the Cpu under heavy load, TemperatureMonitor says that the cores run at 85C°-90C° !!

Is that normal?! I have found a similar thread on these forums, a guy had similar temperatures for his cores, but nobody replied to his question till then.

So my question here is: What are you guys getting on your stock/upgraded Models (4.1/5.1) in Temperature Monitor or a similar Program that addresses all the Sensors? Not in istat, as this only seems to show the temperature on the cpu-cooler.

I really do appreciate your help!

greeting from germany
Zurec

 

[BenClement1978]

smcFanControl temperature monitor shows 80 degrees max.

that is when all cores are maxed out for hours.

 

[Zurec]

Hm, that seems high aswell but not as high as mine. I've read some other threads, and i assume 90°C is quite hot but not out of the limits.

What Mac Pro do you have? Is it stock or modified aswell?

Anybody else with some full-load and idle temps?

greetings
Zurec

 

[BenClement1978]

2.66 quad. 4,1. 70-80 is quite normal.

 

[Amethyst]

On my system w3520 quad 2.66 under ambient 35c my cpu idle is around 48-50 and load ~ 95c, after upgrade to i7 970 at same ambient i got only 43c and load is not more than 75c, so your situation i completely believe it temp come from cpu.

 

[Zurec]

Well, i think i shouldn't be worried then.
Anyway, some more load/idle temperatures on the single-cpu models would be cool. (no pun intended)

Just to be safe.

greetings
Zurec