Our forums are currently in maintenance mode and the ability to post is disabled. We will be back up and running as soon as possible. Thanks for your patience!



CPU Overheating and CPU Core Voltage not in recommended area

By mamies ·
I currently have Intel Desktop Utilities installed onto the machine and it constantly flashes messages that are related to the CPU overheating and the Core Voltage being to high. I assume this could be the cheap power supply, am looking for a more recommendable PSU but i dont understand why the CPU temperature should be over 70 degrees.

It is an Intel Pentium D 3.00Ghz with standard cooling on it

This conversation is currently closed to new comments.

Thread display: Collapse - | Expand +

All Answers

Collapse -

Are you certain the utilities...

by boxfiddler Moderator In reply to CPU Overheating and CPU C ...

are giving you correct information? I used to use ASUS/AMD utilities designed for the same purpose.

After awhile - months, or a little over a year or so - they would become corrupted and render false info. The utility would scare the cr@p out of me that I am burning up my components, but BIOS information reported no issues.

I uninstalled a couple years ago, and the machine is still purring.

Collapse -

Antec for the PSU

by Jacky Howe In reply to CPU Overheating and CPU C ...

Faulty Fans, Dust and Grime build up on the Heatsink restricting air flow. I would give the inside of the case a blowout with compressed air. When blowing air through the fans make sure that you physically stop them from spinning, as they may generate power and **** something up. Remembering to ground yourself by placing the back of your hand on the Power Supply Unit and not moving your feet. By not taking this precaution it is possible that you could inadvertantly cause damage to the PC from an electrostatic discharge. Then remove the Heatsink, giving it a thorough clean and reseat the CPU applying new CPU grease. If the Fans spin freely when you give them a spin they are probably OK. If there is resistance replace them.

Clean the golden edge of each memory stick with a soft rubber, remembering not to touch the golden edge of the memory stick. Check with one stick at a time, remembering to disconnect the power from the PC.
Also check Capacitors around the CPU for swelling or bulging.

Check the memory.
You can test the memory by running Windows Memory Diagnostic that can be downloaded from http://oca.microsoft.com/en/windiag.asp. If memory problems are found, try re-seating the RAM. If it doesn't work, replace the defective RAM.

Test the Power Supply Unit.

Download Prime95.


Prime95 is used to put your system at full load. You want your system at full load when checking your voltages to ensure your PSU is up to spec. The whole point is to make sure your PSU can handle what your system asks of it. When it is installed run it and go to Options and run the Torture Test. Run the Inplace FFTs (Max Power, Heat and some Ram).
If your PC restarts during this test you have a faulty Power Supply (PSU) and it will need replacing.

Download SpeedFan and check the Voltages and Temps while Prime95 is running.


You will want your 12-volt rail to be within 11.52 to 12.48 during load. This means when you are running your cpu at 100% you do not want to drop below 11.52 or you may experience stability problems including but not limited to system restarts and Windows crashes. For the 5-volt rail, you want it to be within 4.8 to 5.2 to be within the 4% range. As for the 3.3 volt rail, you want it to be within 3.17 to 3.43

Video Memory Stress Test 1.4

Note: A damaged or insufficiently charged internal battery can corrupt CMOS or BIOS settings. It can also cause all sorts of wierd things to happen.

Collapse -

PC Health

by TheChas In reply to CPU Overheating and CPU C ...

Well, the first thing to do, is check that your CPU fan runs properly and is not clogged with dust.

Then, enter BIOS setup and see what the PC Health screen displays for the core voltage and CPU temperature.

If the numbers in PC Health do not match those from the monitor utility, ignore the utility.

If they do match, then, you have a few more things to check.

Are the clock, Front Side Bus, and core voltage settings correct for your CPU?

Are you over-clocking? In order to run properly when over-clocked, many CPUs need a higher core voltage and run hot.

Once you have the core voltage and clock speeds correct, if the CPU still runs hot, you might need a new heatsink / fan.

Just as a side note, while the power supply does supply the power for the motherboard, separate regulator circuits on the mother board control and maintain the CPU core voltage. If the motherboard cannot maintain the correct core voltage, you need to replace the motherboard and not the power supply.


Related Discussions

Related Forums