In article <424581f6$0$1546$(E-Mail Removed)>, "Le_pucier"
<(E-Mail Removed)> wrote:
> Hi !
> I think I have found the solution :
>
> First I have put two cooler on each side of a heat sink
> Then the heat sink on the CPU was put in wrong way, so I put it rigt way
> And now here are the data :
> CPU : 45 °
> Motherboard : 35
> Hard Drive : 37
>
> Before it was
> CPU: 65
> Motherboard : 35
> Hard drive : 47
>
> I use two softwares :
> Cpu idle 95
> and
> Asus Probe (release of 2004)
>
> When I look in BIOS, CPU voltage is under 1.6 v ; but in Probe it is : 1.648
> There is no system to reduce voltage for this motherboard under 1.65 V, so I
> have decide to buy an XP 3200 which works at 1.65 V.
>
> My PC sometimes stop working with no reason except perhaps because it works
> too hot ! I do not want to burn my cpu :-(
So, the solution in fact, was placing the heatsink in the correct
orientation. If the heatsink is put on the wrong way, the silicon
die overheats, and the motherboard will shut down. Now that the
heatsink is correctly oriented, you may only need one cooler on
the processor heatsink.
As for the voltage, if you download the datasheet for an AMD
processor, the allowed voltage is 1.6 +/- 0.050, so the voltage
can be 1.55 to 1.65. Your 1.648 just meets this specification,
and so there is no reason to buy another processor (unless you
want to go faster). In addition, the specification says that
the absolute maximum voltage is another 0.50V on top of that.
That means the voltage can rise to at least 2.1 or so volts,
before destruction results, which is certainly a long way
from 1.648V. Don't panic :-)
For example, look at PDF page 34 of this document. Extract the
VCC_core. It is 1.60V . Next, visit PDF page 46 and see
VCC_core_DC_max. It is +0.050V. The nominal value is 1.60+0.05=1.65V
Next, go to PDF page 48. It allows VCC_core_max plus +0.50V,
or a total of 2.15V, before destruction occurs.
http://www.amd.com/us-en/assets/cont...docs/25175.pdf
If you were to apply 2.1V, the processor would likely overheat
and shut down, long before you could get any useful work done.
Just be happy with the 1.648V :-)
Paul