Atholon 1800+ xp too hot

[Khaled Sultan]

I'm currently running an Athlon 1800+ xp chip on an ASUS A7V333 motherboard.

I've been noticing lately that my CPU temp is higher than it used to be
before. It's currently sitting at 78 C. I believe before it used to be
around 67 C. This is true even when my CPU is less than 5% usage.

I only have one fan in my pc, on the heatsink above the chip. I don't have
a case fan!

I'm suspecting it's the power supply (generic). Should I consider something
else before I go out and by a new power supply?

Also, what good power supply should I get? 300W, 350W, or 400W. Does it
matter if it has one or two fans? Any advice would be greatly appreciated.

Thanks.

 

[dave AKA vwdoc1]

Have you tried removing the CPU heatsink and fan. Cleaning it thoroughly
and reinstalling it with new thermal paste/grease? Maybe dirt on the fins
also!
What is the temp when you first turn on the computer?
later,
dave

I'm currently running an Athlon 1800+ xp chip on an ASUS A7V333 motherboard.

I've been noticing lately that my CPU temp is higher than it used to be
before. It's currently sitting at 78 C. I believe before it used to be
around 67 C. This is true even when my CPU is less than 5% usage.

I only have one fan in my pc, on the heatsink above the chip. I don't have
a case fan!

I'm suspecting it's the power supply (generic). Should I consider something
else before I go out and by a new power supply?

Also, what good power supply should I get? 300W, 350W, or 400W. Does it
matter if it has one or two fans? Any advice would be greatly

appreciated.

 

[Natéag]

Different BIOSes use different methods for reading CPU temperature.
Updating to a newer BIOS may give you lower readings.

I do not know the exact terminology, but the temp can be read
from a diode on the motherboard beneath the CPU or directly
from the CPU's on-board diode - which is higher but more accurate.

ASUS supported the later for some time, but then switched to the
former in new BIOSes because there were too many alarmist
reports.

 

[Roy Coorne]

I'm currently running an Athlon 1800+ xp chip on an ASUS A7V333 motherboard.

I've been noticing lately that my CPU temp is higher than it used to be
before. It's currently sitting at 78 C. I believe before it used to be
around 67 C. This is true even when my CPU is less than 5% usage.

I only have one fan in my pc, on the heatsink above the chip. I don't have
a case fan!

In their 'Thermal, Mechanical, and Chassis Cooling Design Guide'

http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/23794.pdf

AMD recommend a backside outblowing case fan - see airflow Fig. 11
(loc. cit. p. 16).

I'm suspecting it's the power supply (generic). Should I consider something
else before I go out and by a new power supply?

Also, what good power supply should I get? 300W, 350W, or 400W. Does it
matter if it has one or two fans? Any advice would be greatly appreciated.

The PSU should come from a good manufacturer; see, e.g., the listing
by AMD
http://www.amd.com/us-en/Processors/DevelopWithAMD/0,,30_2252_869_4348^4376,00.html

with two fans and 350W (+3,3V: 28A, +5V: 30A, +12V: 15/18A) - see
Table 1 in
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/26003.pdf

Roy

 

[Jeff]

I had that problem with my A7N8X 2500+ Barton combination.
Everything was fine for a year... all of a sudden, one day... it's like 10
degrees hotter
and i noticed I couldn't do a BIOS update..it just plain wouldn't let me.
Asus said
"take the battery out and short the RTC memory to clear it". After I did
this...
I could burn in the new BIOS... and my fan speed was up and temp was cooler.

go figger.

Jeff