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Solved Generic system shutdown temperatures seem irrelevant?


rowlands111

Member
Member
Posts
53
#1
Hey guys,

Hopefully this thread is in the right place.

I own an Acer Predator gaming PC, and specifically, it has an American Megatrends UEFI BIOS which is presumably modded my Acer.

In the advanced settings, both ''System Shutdown Temp'' and ''CPU Shutdown Temp'' are off by default.

So as the overly cautious-verging-on-paranoid when it comes to melting circuit boards, I turned both on> Strangely it didn't let me customise the temps for system shut down (I know my Haswell chip for instance has safe operating temps well above 85c)

So, after switching both on, I ran a Prime95 torture test - I was monitoring my temps, and after about 3 or 4 minutes my CPU & Motherboard temps hit 72c. My system then shutdown. I turned off those BIOS settings as it seemed pointless for a system to shutdown at 72c. Am I wrong here? Do you guys reckon that because I can't specify the values for shutdown, it just goes with the lowest common denominator?

My last question is; if I leave these BIOS Settings off, will my Haswell chip/system shut itself down if the temps get too high anyway? Cheers!
 

My Computer

System One

  • OS
    Windows 8.1 Pro
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Acer Predator G3-605
    CPU
    Intel Core i7 4770 @ 3.4GHZ
    Motherboard
    Acer Predator
    Memory
    16GB DDR3 @ 798MHz
    Graphics Card(s)
    Nvidia GTX 770 2GB - Personally Overclocked
    Sound Card
    N/A
    Monitor(s) Displays
    Acer Pradator full HD LED 24''
    Screen Resolution
    1920 x 1080
    Hard Drives
    Corsair Neutron GTX 240 GB (Boot)
    2 TB Seagate
    PSU
    500W
    Case
    Acer Pradator G3-605
    Cooling
    All standard
    Keyboard
    Corsair Raptor K50 RGB
    Mouse
    Acer Optical Mouse
    Internet Speed
    40Mbps
    Browser
    Chrome
    Antivirus
    Bitdefender Windows 8 Security

topgundcp

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Guru
San Jose - California

Posts
2,847
#2
Prime95 will test your RAM, CPU and parts of the MB which interface with the CPU and RAM for stability, it does not monitor your temp. If the PC shutdowns then that means your PC is unstable. Of course, the temp will rise when you do a torture test but it is not the cause for the PC to shutdown.
 

My Computer

System One

  • OS
    8.1x64PWMC Ubuntu14.04x64 MintMate17x64
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Home Brewed
    CPU
    I7 4970K OC'ed @4.7 GHz
    Motherboard
    MSI-Z97
    Memory
    16 GB G-Skill Trident X @2400MHZ
    Graphics Card(s)
    NVIDIA GeForce GTS 450
    Sound Card
    X-Fi Titanium Fatal1ty Professional Series
    Monitor(s) Displays
    Dual HP-W2408
    Screen Resolution
    1920X1200
    Hard Drives
    256 GB M2 sm951, (2) 500GB 850EVO, 5TB, 2 TB Seagate
    PSU
    Antec 850W
    Case
    Antec 1200
    Cooling
    Danger Den H20
    Keyboard
    Logitech
    Mouse
    Logitech Performance Mouse MX
    Internet Speed
    35/12mbps
    Browser
    Firefox

rowlands111

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Posts
53
#3
Thanks for your response.

I forgot to mention, after turning both of those BIOS related shutdown settings off, Prime95 did not cause a shutdown.

I think it's not a coincidence that Acer left these BIOS settings off on a gaming machine, as when turned on, it shuts down at a mere 70c. I was trying to get insight on American Megatrends default temp values for system shutdown.

I monitored my temps using standalone software. To clarify, my system is fine, I'm just baffled why the shut down temps are so low for the BIOS values.
 

My Computer

System One

  • OS
    Windows 8.1 Pro
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Acer Predator G3-605
    CPU
    Intel Core i7 4770 @ 3.4GHZ
    Motherboard
    Acer Predator
    Memory
    16GB DDR3 @ 798MHz
    Graphics Card(s)
    Nvidia GTX 770 2GB - Personally Overclocked
    Sound Card
    N/A
    Monitor(s) Displays
    Acer Pradator full HD LED 24''
    Screen Resolution
    1920 x 1080
    Hard Drives
    Corsair Neutron GTX 240 GB (Boot)
    2 TB Seagate
    PSU
    500W
    Case
    Acer Pradator G3-605
    Cooling
    All standard
    Keyboard
    Corsair Raptor K50 RGB
    Mouse
    Acer Optical Mouse
    Internet Speed
    40Mbps
    Browser
    Chrome
    Antivirus
    Bitdefender Windows 8 Security

rowlands111

Member
Member
Posts
53
#4
Of course, the temp will rise when you do a torture test but it is not the cause for the PC to shutdown.
Uhhh, I'm sorry, but yes it is. :s That's what this thread is all about mate!
 

My Computer

System One

  • OS
    Windows 8.1 Pro
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Acer Predator G3-605
    CPU
    Intel Core i7 4770 @ 3.4GHZ
    Motherboard
    Acer Predator
    Memory
    16GB DDR3 @ 798MHz
    Graphics Card(s)
    Nvidia GTX 770 2GB - Personally Overclocked
    Sound Card
    N/A
    Monitor(s) Displays
    Acer Pradator full HD LED 24''
    Screen Resolution
    1920 x 1080
    Hard Drives
    Corsair Neutron GTX 240 GB (Boot)
    2 TB Seagate
    PSU
    500W
    Case
    Acer Pradator G3-605
    Cooling
    All standard
    Keyboard
    Corsair Raptor K50 RGB
    Mouse
    Acer Optical Mouse
    Internet Speed
    40Mbps
    Browser
    Chrome
    Antivirus
    Bitdefender Windows 8 Security

CountMike

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Guru
Belgrade , Serbia

Posts
4,664
#5
There are few different temperature limits, shut down temperature, where your CPU will shut down on it's own, than there is optimal working maximum temperature above which it's considered that long time usage is detrimental for CPU's longevity. Than you have "Core temperature" and "Die Temperature" which can differ by a large margin.
They may have set that pretty conservatively in the bios for warranty's sake.
The best thing you can do is to increase cooling of CPU and case to higher level than those often mediocre "out of the box" cooling solutions. With better than stock cooling and fans properly set to increase speed only when warranted you'd get quieter operation most of the time.
 

My Computer

System One

  • OS
    Windows 8.1 Pro
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Home made
    CPU
    AMD Ryzen7 2700x
    Motherboard
    Asus Prime x470 Pro
    Memory
    16GB Kingston 3600
    Graphics Card(s)
    Asus strix 570 OC 4gb
    Hard Drives
    Samsung 960 evo 250GB
    Silicon Power V70 240GB SSD
    WD 1 TB Blue
    WD 2 TB Blue
    Bunch of backup HDDs.
    PSU
    Sharkoon, Silent Storm 660W
    Case
    Raidmax
    Cooling
    CCM Nepton 140xl
    Internet Speed
    40/2 Mbps
    Browser
    Firefox
    Antivirus
    WD

rowlands111

Member
Member
Posts
53
#6
Ah okay Count Mike, I was just familliar with the two shutdown temp's I mentioned

Yeah oddly enough, System Shutdown Temperature & CPU Shutdown Temperature (the CPU one must be independant of the core i7's auto shut off mode, which I understand is something the chip does irrespective of BIOS settings)

So as you say, it must've been set conservatively, and Acer being Acer; with not much access to custome BIOS, they prob couldn't alter that. I mean, my GTX 770 can reach temp's far above 70c (I keep it at just below 70 thanks to customer fan curve) And my Motherboard and i7 4770 reach about 72 degrees on full load. That's probably why they left the BIOS settings off I guess.
 

My Computer

System One

  • OS
    Windows 8.1 Pro
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Acer Predator G3-605
    CPU
    Intel Core i7 4770 @ 3.4GHZ
    Motherboard
    Acer Predator
    Memory
    16GB DDR3 @ 798MHz
    Graphics Card(s)
    Nvidia GTX 770 2GB - Personally Overclocked
    Sound Card
    N/A
    Monitor(s) Displays
    Acer Pradator full HD LED 24''
    Screen Resolution
    1920 x 1080
    Hard Drives
    Corsair Neutron GTX 240 GB (Boot)
    2 TB Seagate
    PSU
    500W
    Case
    Acer Pradator G3-605
    Cooling
    All standard
    Keyboard
    Corsair Raptor K50 RGB
    Mouse
    Acer Optical Mouse
    Internet Speed
    40Mbps
    Browser
    Chrome
    Antivirus
    Bitdefender Windows 8 Security

CountMike

Well-Known Member
VIP Member
Guru
Belgrade , Serbia

Posts
4,664
#7
Yes, Acer is "baby Asus" so no surprises there. As I OC everything I see and put my mitts on, I always check with manufacturer for specs sheet for particular model and go by that as far as voltages and temperatures go. I turn off all the energy savings and automatic settings even before starting to OC. After gradual OC at every step I torture test and check temperatures throughout the process. When temps under tests get to 10 - 5c under CPU's max declared temperature, I stop OC. Never lost a CPU or any component to overzealous OC.
 

My Computer

System One

  • OS
    Windows 8.1 Pro
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Home made
    CPU
    AMD Ryzen7 2700x
    Motherboard
    Asus Prime x470 Pro
    Memory
    16GB Kingston 3600
    Graphics Card(s)
    Asus strix 570 OC 4gb
    Hard Drives
    Samsung 960 evo 250GB
    Silicon Power V70 240GB SSD
    WD 1 TB Blue
    WD 2 TB Blue
    Bunch of backup HDDs.
    PSU
    Sharkoon, Silent Storm 660W
    Case
    Raidmax
    Cooling
    CCM Nepton 140xl
    Internet Speed
    40/2 Mbps
    Browser
    Firefox
    Antivirus
    WD

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