Archived from groups: alt.comp.hardware.pc-homebuilt (
More info?)
"Chris James" <cj.james@ntlworld.com> wrote in message
news:s7b9e.38875$pA6.23725@newsfe1-win.ntli.net...
> Hi fj ,
> The room is cool .
> The fan is properly attached / greased .
> The heatsink is barely warm in operation .
> As an experiment , I removed the fan .
> CPU temp rose slowly thru just four degrees in the first minute .
> So I cut the power and refitted the fan .
>
>
> The board has two switch sets .
> One small , one big strip .
> 1/ Auto / 100 MHz
> 2/ Auto / manual configure for various multipliers
You want both set to Auto. The motherboard will automatically detect the
right FSB frequency. The multiplier is set by the CPU. Setting the
multiplier to anything other than Auto will cause conflict.
In BIOS, you've got CPU Host Clock Control disabled?
>
>
> With switch one set to 100MHz , and switches two set to Auto
> everything runs fine , but far too slow for an XP2600 .
> Chip temp bios -- 60 degrees .
> OS ( XPsr2) reports chip speed 1.26 GHz .
>
>
>
> Switch everything to Auto , on the board , and I'm just getting a plain
> black screen .
> I tried Auto with * 12.5 .
> I tried Auto with *16 .
> Both yeilded too high chip temps reported in the bios .
> Both crashed - reset in attempts to start-up XP .
>
> Chris
>
As dawg mentions, please confirm your heatsink is installed in the correct
orientation. Installing it backwards can easily produce 75+ C.
Here's a link to a video showing the correct heatsink orientation.
http://www.amd.com/us-en/Processors/TechnicalResources/0,,30_182_869_4348%5E6678,00.html
You can ignore the part about a thermal pad - providing you are using
thermal grease. If there was a thermal pad originally, you should clean off
whatever remains of the thermal pad. And apply a small amount of thermal
grease - just like dawg says.
Also, the clips on your heatsink may be different than the one in the video.
I'm used to clips that have three openings that engage each of the three
plastic lugs on the CPU socket.
While it is correct that proper use of thermal grease is important, improper
use probably wouldn't produce 75 C cpu temp. First, let's confirm the
heatsink is in the right orientation. If that provides a big reduction in
CPU temp, then go back and follow dawg's instructions.
>
>
> "fj" <jelenko2@hotmail.com> wrote in message
> news:sFa9e.92035$cg1.57626@bgtnsc04-news.ops.worldnet.att.net...
>>
>> "Chris James" <cj.james@ntlworld.com> wrote in message
>> news:dNX8e.10486$DU6.2118@newsfe1-gui.ntli.net...
>>>I have a Gigabyte GA 7VT600 mainboard with an Athlon 2600 chip .
>>>
>>> With clock ratio on Auto it was showing Host Frequency of 166 .
>>> But the machine was cutting out a lot and the CPU temp measured 75
>>> degrees .
>>> The booklet suggests around 35 degrees to be OK -- ish .
>>> So I turned off Auto and set the clock to 100 . Now the temp is down
>>> to 65 degrees . and the box runs ok .
>>> Windows XP system reports CPU speed as 1.26 GHz ... not very
>>> impressive for my 2600 chip ... uh ?
>>>
>>> Any comments or suggestions very welcome .
>>>
>>> In operation , the heatsink is cool to the touch .
>>> I tried another heatsink ... much the same results .
>>> I would have thought it's in pretty serious contact with the chip . But
>>> I have come across heatsinks which are on much stronger 'springs ' .
>>>
>>>
>>> Chris
>> Chris - My understanding is that most store bought PC's will run in the
>> 40's to low 50's [Centigrade]. 75 C means something is unusual about
>> your set up.
>>
>> As was mentioned, first question is what is your room temperature?
>> [Although it's unlikely that your room temp alone would account for the
>> 25 C or more that your CPU is above normal, you always need to start with
>> room temp.] All heatsinks and fans do is to work on cooling relative to
>> the room temp]
>>
>> Just to confirm, the fan on the heat sink is running with no apparent
>> problem? ie., no noise, the fan blades are essentially a blur? You
>> have at least 1 fan in the rear of the case that is pushing air out of
>> the case?
>>
>> Confirm the heatsinks are installed with the right orientation. If they
>> are installed 'backwards' you can easily see CPU temps of 75 C - or more.
>> And, of course, you should be using thermal grease between the heatsink
>> and CPU.
>>
>> If either of the heatsinks/fans came with the CPU, they should be keeping
>> the temps below 50 C with light CPU load/useage. With 100% CPU useage,
>> temps should be below the low 60's.
>>
>> If all this checks out and your CPU temp with the clock ratio set at Auto
>> is still in the 70's, please let us know.
>>
>>
>>>
>>>
>>
>>
>
>
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