AMD Athlon 5000+ X2 overheating

[chrisr34000]

Hello!

I have a big problem with one of my computers: the idle temperature of the cpu is pretty high and when I start to use some applications, it starts to overheat immediately. The CPU is not overclocked.

These are the specs:

AMD Athlon X2 5000+
Abit A-N68SV, socket AM2, Nvidia Geforce7025/ nForce630a
1 GB RAM DDR2 800
Galaxy Geforce 6600GT 128 MB
NoName 460W PSU with no ventilation on the bottom part
NoName Case with no additional fans installed

CPU Temp IDLE is between 30 and 40 C. When I start a Skype Video Call and use at the same time firefox to view a youtube video, temperatures skyrocket at 80 C and the computer turns off.
If only use Skype, the temps are around 60-65 C.

Originally, I believed that the thermal paste was the problem, so I've bought an Alpenföhn Groß Clock'ner (which is very well rated at frostytech) and used Arctic MX2 thermal compound this time. The problem however, remained the same, even with the new cooler. I've repeated the process of applying thermal paste and reseating several times and I am sure, that everything is ok regarding this.

I noticed something odd: when the fan of the CPU Cooler is connected to the CPUFAN power connector on the mainboard, it does not start. If I plug it in the AUXFAN connector, everything looks fine. Why is that?
While the computer is running, if I plug the fan first in AUXFAN and then in the CPUFAN connector, the fan runs fine as well. It seems that it just does not want to turn, when it is first connected on CPUFAN on boot.

After reading on the web, it seems that there are only 2 remaining parts which can generate this problem:

1) The power supply
2) The mainboard

What do you think and what would you suggest me?
Are there any other ways to check if it is one or another?

[Steve R Jones]

If you leave the fan connected to a working connection does the heat problem go away? If so why not leave the fan connected to working connection?

[chrisr34000]

No, the problem persists, regardless of the fan turning or not and regardless where it is connected.

[Steve R Jones]

NoName Case with no additional fans installed

Does the case have "some" fans to help bring in cool air and send out warm air?

[chrisr34000]

No. But even so, why would such an overheating occur with such a good cooler, given the fact that the CPU load isn't that high?

[Steve R Jones]

Your good air cooler is blowing hot air around inside the case isn't it? You need a supply of fresh clean and cool air coming in and another fan sucking the hot air out... Taking the case cover off would help...

[chrisr34000]

If I install a fan in the front and one in the rear, what kind of temperature drop would you expect?

[stroyal]

If I install a fan in the front and one in the rear, what kind of temperature drop would you expect?

If you have the right airflow, you should be able to get the inside of the case the same as the outside. That is also as low as you can get it.

Each degree you drop the inside of the case, the CPU should drop just about the same amount.

[stroyal]

If you want to test the max cooling, take the side off the case, and place a window fan blowing into the case.
This will be as cool as you can get the case, by adding fans.
It will also show how much the CPU will drop.

[chrisr34000]

Hi!

Thx stroyal.

I've attached some temp details.

[Aaron_8015]

CPU looks fine... Its at 33C Idle.

Its the GPU I am more concerned about. Might need to give it a clean, 74C is way too hot for idle...

Edit:- Also any reason your +12v line is only at 6.91v?

[stroyal]

The 5v isn't very 5v either.

The case temp appears to be 94f/35c, you should be able to get that to room temp, unless that is your room temp.

If those are your voltage readings, I would replace that no name power supply, with a good brand name. Right away.

[chrisr34000]

Why is the CPU overheating because of the low voltage on the 5v and 12v line?

[Aaron_8015]

The CPU is not overheating, the GPU (graphics card aka the 6600GT) is overheating (as stated in my last post).

The PSU is another problem entirely.

[stroyal]

Although an indirect problem, if the 12v fans are only getting 6 volts, they are only turning 1/2 speed.