puzzling problem with new mobo

[s0ccergoof]

I am sitting here working on my brothers computer for him. We just installed a new motherboard, a Gigabyte GA-7N400 Pro2 (nforce2). We also put in a new heatsink to try and get his cpu temps down (had been running at around 50C) The new heatsink is a thermalright SLK800. We are having 2 problems. First of all, the motherboard is only showing an Athlon XP 1500 speed on boot and the gigabyte utilities from the OS are showing 1500XP speeds. I just recently installed this same motherboard and had this same problem, but was able to fix it by adjusting the multiplier and FSB settings to their correct ones for my cpu. Whenever we try this with his bios settings, it will not change the cpu speed that the mobo is detecting. I was wondering if anyone had any suggestions for this problem?

The second problem is that his temps are running extremley high. Our systems are almost identical, except he has an Athlon 2100XP and I have a Barton 2500XP. We both have the same case and heatsink and the same case and cpu fans. My cpu temp is showing 29-30C while his is showing 44-45C. This is better than what his was at at 50C, but it is still so far above mine that I am worried about the discrepancy. I am not a total genius, but I am not a wet-behind-the-ears noob at this either, but this one has me stumped. Any suggestions are appreciated

 

[MikeMike]

are there any jumpers on the mobo that could be limiting the fsb you can set?

also his mobo might report temps differently than yours (internal diode vs. external thermistor) which can cause major differences.

MIKE

 

[s0ccergoof]

That just might be it, I might have forgot to check his jumper settings, there are only 1 or 2 on this particular mobo. As for the temp settings we have the same mobo so unless Gigabyte is in the habit of moving the diode from mobo to mobo, then I think they are in the same place.

 

[MikeMike]

didnt know u had the same mobos too.

other reasons might be urs is barton his is thoroughbred (sp?) and the new layering, and heat dissipation is a major factor just might be.

MIKE

 

[Macro2]

What are you using to measure the temps? If you are using motherboard monitor or some other monitor you have the wrong sensor selected.

Other option is that your sensor is defective.

If your temps were so low I could attribute it to the Barton core but 29-30c is more like a case temperature.


Mac

 

[s0ccergoof]

well after I checked the jumpers, we got the mobo to recognize the 2100, so that is fixed. As far as the temps, my CPU temp is reading 29C and my system temp is reading 31C right now, so even if they are switched, I am still running really cool. I was thinking that it might be that the cpus are constructed differently and that his just simply gives off more heat, I poked around on AMD's website looking for specs on the processers but did not find anything. As long as his temp does not jump up much more than 45-46C he is happy and we will just live with it.