A7M266 BIOS 1004 to 1005: CPU temp 10°C hotter than before

[soerenfleischer]

Hi all,

I recently had to update my A7M266's BIOS from 1004 to 1005 because 3DMark 2001 SE wouldn't run on the 1004 BIOS.

After the update, I noticed that the average CPU temperature at full load went from about 39°C to about 50°C

Any idea which could cause this? A higher VCore maybe?
And most importantly, how could I fix it?

I already checked the HSF, it's still at 4800 U/min to 4900 U/min and I also cleaned it from dust but that had no effect.

 

[FuZor]

M8 this is VERY strange... a mere bios update should not cause a higher temperature!!! Unless you updated to the wrong one.

Either way if your system is still stable, then basically forget about it and get on with using your PC. 50 C is about average for normally cooled athlons, XP's are much cooler though so it depends out what cpu you have. But i'd be happy with 50 C at FULL load!

 

[soerenfleischer]

M8 this is VERY strange... a mere bios update should not cause a higher temperature!!! Unless you updated to the wrong one.

I know

But I doubt it was the wrong one, I downloaded it from the official German Asus BIOS site. http://www.asuscom.de/support/techmain/bios/bioslink.htm
I've had preferred to use the international site ( http://download.asus.com.tw/mb_dl_menu.asp ), but it's sort of out-of-date (they offer BIOS versions, which are older than the version which came with the mobo )

 

[Embattle]

Asus have had problems before regarding temp readings and bios updates. Most motherboards don't actually read the temp right any way.

 

[soerenfleischer]

Originally posted by Embattle
Asus have had problems before regarding temp readings and bios updates. Most motherboards don't actually read the temp right any way.

So you think version 1004 interpreted the data from the temperature sensor incorrectly?

 

[Embattle]

Post the spec of you computer below include make/model of HSF and how many case fans etc.

 

[soerenfleischer]

Originally posted by Embattle
Post the spec of you computer below include make/model of HSF and how many case fans etc.

A7M266
Athlon C 1200 MHz (not overclocked) w/ Cooler Master EP5-6I11 (4800 U/min)
256 MB DDR (Kingston, 266 MHz)
Geforce 3 (not overclocked, 64 MB)

case open and lying.

 

[FuZor]

Originally posted by Embattle
Asus have had problems before regarding temp readings and bios updates. Most motherboards don't actually read the temp right any way.

tat is very true... but I thought XP's had some built in temp sensor? inside the actual chip? not sure......


besides 50C isnt that bad!!! not when you consider its at FULL load!

 

[Embattle]

Asus MB - the temperature sensor is actually on the mobo and thus isn't actually touching the processor so it will never be that accurate. On my mobo a little sensor touchs the under side of the processor thus generating a temp reading thats almost spot on.

Heatsink - TBH honest it isn't that good.

What Asus might of done it adjusted the sensor reading by adding some to try and generate a realistic figure of the actual temp of the processor.

 

[FuZor]

ah its possibleeeeeeeee that ASUS did that. It would explain a great many things

 

[FuZor]

I should point out that I use this beast to montior the gubbins inside my rig.

http://www.overclockers.com.au/techstuff/r_digidoc5/

May help you out, if you want to invest the cash

 

[soerenfleischer]

Originally posted by Quicksolv
besides 50C isnt that bad!!! not when you consider its at FULL load!

Yes, but the case is open.
When I close it, the temperature will surely go up for at least another 10°C (that's at least what happened with the 1004 BIOS)

 

[Embattle]

Hmm maybe but your Heatsink isn't that good....imo it most probably isn't able to offload enough heat to make a real diff open/closed.

 

[soerenfleischer]

Originally posted by Embattle
Hmm maybe but your Heatsink isn't that good....imo it most probably isn't able to offload enough heat to make a real diff open/closed.

It's not the heatsink's fault if the temperature goes up as soon as the case is closed.

The heatsink only transfers the thermal energy from the CPU to the inside of the case - not from inside the case to out-of-the-case.

The air-exchange between outside-the-case and inside-the-case is just insufficient (it was designed for Pentium IIs), that's why I opened it.

 

[Embattle]

Originally posted by soerenfleischer


It's not the heatsink's fault if the temperature goes up as soon as the case is closed.

Thats not the point I'm trying to make. All I meant was that the size/performance of the heatsink can affect the overall temp in a case.

I know what a heatsink does thxs and the temp will naturally rise when the case is closed because there is less air movement to take the heat away which the processor offloads on to the HSF and the HSF offloads in to the surounding air.

At the end of the day I've already answered your question regarding the jump in temp, it relates to an adjustment to give an accurate temp figure and the overall temp is high because you have a crap HSF inside a crap case, although as stated you have the case open which TBH isn't ideal.

BTW if you're truely worried about get yourself a thermal probe and see what the temp reads as.

 

[soerenfleischer]

Please, don't get mad.

I appreciate your help.

 

[FuZor]

Chill peeps CHILL

Question: Is your PC stable?

If it yes then relax chill man! CPU's can stand much higher temps than 60C!

If NO
Then buy a good heatsink check out www.overclockers.co.uk

 

[soerenfleischer]

Yes, it's quite stable. (Not taking into account that CuteFTP sometimes makes the computer reboot spontaneously)

I've just closed the case to see if it remains stable.

According to Asus PC Probe, the CPU temp already raised to 57°C

 

[Embattle]

Bit hot.