Is my cpu overheating or being stressed too much?

Recently I noticed that I only get 2 hrs 30min of battery life. So I thought about disabling one of the cores to save battery and I did it. But then I noticed some problems such as my cpu being reported by core temp to be at 55-65 C. I also noticed that the cpu is running at 2.80 ghz 70% of the time. However on the resource monitor it says the frequency is 100% all the time and the cpu Z reports the cpu to be running at 3 ghz all the time. I am confused by all the conflicting info. I don't know which to believe.
My system specs are
Hp dv7, win 7
Intel i5 580m @2.66 ghz turbo to 3.33 ghz
6 gb ram
500gb HDD

This is part of what cpu Z says:

Number of processors 1
Number of threads 1

Processor 1 ID = 0
Number of cores 1 (max 8)
Number of threads 1 (max 16)
Name Intel Core i5 580M
Codename Arrandale
Specification Intel(R) Core(TM) i5 CPU M 580 @ 2.67GHz
Package (platform ID) Socket 989 rPGA (0x4)
CPUID 6.5.5
Extended CPUID 6.25
Core Stepping K0
Technology 32 nm
Core Speed 3059.9 MHz
Multiplier x FSB 23.0 x 133.0 MHz
Rated Bus speed 2394.7 MHz
Stock frequency 2666 MHz
Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, EM64T, VT-x, AES
L1 Data cache 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache 32 KBytes, 4-way set associative, 64-byte line size
L2 cache 256 KBytes, 8-way set associative, 64-byte line size
L3 cache 3 MBytes, 12-way set associative, 64-byte line size
FID/VID Control yes

Turbo Mode supported, enabled
Max turbo frequency 3333 MHz
Max non-turbo ratio 20x
Max turbo ratio 25x
Max efficiency ratio 9x
Max bus number 127
Attached device PCI device at bus 127, device 2, function 1

THANKYOU !!!! :o
3 answers Last reply Best Answer
More about overheating stressed much
  1. Best answer
    seems like different resources are not in agreement. Have you checked out the BIOS? If the temps are below 70 degrees centigrade, you should be fine. Also, open task manager and see if the CPU thread report is at 100% If so, you may be maxing out your CPU potential. What programs do you run with the laptop?
  2. simple programs such as the browser and microsoft word. No heavy games etc.
    Thankyou for answering!!
  3. Best answer selected by Double2.
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