Overheating on Asus A8N32?

[imported_red5]

I just installed an Asus A8N32 motherboard. Everything went smoothly so far EXCEPT when I looked at the BIOS readings for the motherboard temperature,. The CPU temperature and motherboard temperatures post in BIOS as 46-47 degrees celsius each. On the old board the CPU temperature would post as 30 degrees celsius and get up to 38 or 39 if I've been gaming a while... which is about 15 degrees cooler.

It does not seem to be blowing out hot air from the back of the case, and I do have a lot of space in there and a lot of fans - not the best fans or anything but they should be sufficient. The thing is the only one that plugs into the motherboard is the CPU fan where the other three plug straight into the power supply so the motherboard doesn't know anything about them.

So what I was wondering is does the A8N32 have a thermometer onboard or does it try to "guess" the temperature by your number of fans, fan speeds, system speed, power used etc? Anyone have any idea? That would explain everything...

I will have to test the USB2 out to see if that works soon as well.

My system specs:
CPU: AMD Athlon64 X2 4800+
Motherboard: Asus A8N32 Deluxe
Video: 2xBFG 7800gtx SLI
Sound: Sound Blaster X-Fi XtremeMusic
RAM: Corsair XMS 3500LL Pro
Power supply: Ultra X2 X-onnect 550 watt

I'm not overclocking anything.

Thanks in advance.

 

[MatrixVPR]

I would think that 44c for the MB temp is normal on my system and i have the A8N-sli deluxe not the 32 but my buddy bought it on my recomendation and that one runs around the same temp. (44c). the CPU might be a bit warm but it's a dual core so i think it is within reason. As long as your loaded temps. are below 70c your fine, as soon as you start approaching that 70 degree mark i would worry. What board did you have before?

 

[RallyMaster]

What type of cooling do you have on that CPU? If the CPU blows enough air onto the heatpipe, it might cool down a lot of things.

 

[imported_red5]

Originally posted by: MatrixVPR
I would think that 44c for the MB temp is normal on my system and i have the A8N-sli deluxe not the 32 but my buddy bought it on my recomendation and that one runs around the same temp. (44c). the CPU might be a bit warm but it's a dual core so i think it is within reason. As long as your loaded temps. are below 70c your fine, as soon as you start approaching that 70 degree mark i would worry. What board did you have before?

I had a Biostar N4SLI-A9. I am not sure if the board reported the correct temperatures though as it did not report the correct voltages.

The CPU is okay but the motherboard is not supposed to exceed 45 degrees celsius. This is with the minimal load on it - I haven't even gamed yet or anything on the new motherboard.

 

[imported_red5]

Originally posted by: RallyMaster
What type of cooling do you have on that CPU? If the CPU blows enough air onto the heatpipe, it might cool down a lot of things.

Just a standard CPU fan nothing fancy. Should be sufficient though.... I hear the Zalman's don't fit?

 

[imported_red5]

I just turned it on. It started at either 23 or 26 degrees celsius and went up to 44 now. When it was at 42 I opened the side of the case and it feels real cool in there... there's mad air circulating through the case and all....

It's 70 in the hallway and this room is often a tad warmer.

I put my hand right by the board and it felt cold still but I don't know how close to the CPU for example I need to put my hand before I should feel heat?

I just checked my fans. I have one at the front right blowing out, one in the back blowing out, and one in the left center side blowing in. They all seem to be pushing good air. I think that is right unless the one on the right should blow out and the three in front should blow in.

It still does not feel slightly warm in there.

 

[Nocturnal]

Have you reseated the processor and re-applied the thermal compound? That may help.

 

[imported_red5]

Originally posted by: Nocturnal
Have you reseated the processor and re-applied the thermal compound? That may help.

You mean I have to scrape all that ****** off and start again? :Q

 

[AZReDWiNG]

I think everyone with an A8N32 has this problem. The temp sensor is right by the southbridge, and usually the graphics card just dumps heat onto it. Really, it's not that much to worry about. As long as it runs stable it should be okay.

 

[imported_red5]

Originally posted by: AZReDWiNG
I think everyone with an A8N32 has this problem. The temp sensor is right by the southbridge, and usually the graphics card just dumps heat onto it. Really, it's not that much to worry about. As long as it runs stable it should be okay.

I put a floor fan on it. Its at 36 degrees celsius and does not seem to be rising much if any....

I think I will a Zalman to be safe.

UPDATE: Just gamed for the past 30 minutes or so. CPU went to 54 celsius but the motherboard stayed at 39 with the floor fan blowing in the side of the case (the other fans are blowing out so you know its pushing a lot of air!)

 

[jack bauer]

Having similar problems. 55C on idle. Then I moved my HD to the highest slot and lowed it to around 45C idle. My next guess is my accelero is blowing hot air on the sensor. These boards have a 3 year warranty right? CPU temp went down as well.

 

[jack111]

I have almost the same specifications as your

AMD X2 Arctic Cooling Pro Ver RUNING HOT

Read the thread above on this same board.

And my temparatures seem to be runing high. Could be to do with a motherboard sensor than if all Asus A8N32-SLI Deluxe are showing high temparatures

 

[Bobthelost]

The A8N32 runs hot. It's a known issue with the board due to the way they implemented the dual x16 slots.

 

[DimFilter]

The new 1205 BIOS drops the probe temps anywhere from 5-10C. I wouldn't trust the sensors. On 1009 I was at 41 idle. With 1205 I'm at 34 idle.

 

[pkme2]

Yes my A8N SLI runs cooler than yours, so it must be your boards innate capabilities. Nothing to worry about yet. A lot of threads on AT mentioned that fact too.

 

[jack bauer]

I heard flashing a new bios will kill your mobo. I have a a8n32 and want to update the bios but don't know if it' a good idea.

 

[jack bauer]

Now that i have dropped the temp from 55 to 45, I got a fan out and let it blow into the open side of the case again. Goes down to 40C, no lower. The CPU lowers to 40C too. That's as good as it gets, unless the sensor is broken. A house fan at high speed, and the board won't drop below 40C and doesn't feel all that hot? This is getting crazy. Guess I'll try reappliying thermal paste. When I got my cpu, I put it on as is. Opty's have thermal paste already applied out of the box right? This was on the heat sink, not the chip, right?

 

[pkme2]

Originally posted by: jack bauer
Now that i have dropped the temp from 55 to 45, I got a fan out and let it blow into the open side of the case again. Goes down to 40C, no lower. The CPU lowers to 40C too. That's as good as it gets, unless the sensor is broken. A house fan at high speed, and the board won't drop below 40C and doesn't feel all that hot? This is getting crazy. Guess I'll try reappliying thermal paste. When I got my cpu, I put it on as is. Opty's have thermal paste already applied out of the box right? This was on the heat sink, not the chip, right?

Radical approach but it works. It shows, with proper air ventilation you can get lower temperatures.
On original HSF, there is a thermal compound already afixed to heatsink.

I would add where ever possible any 120mm or 80mm (YLs). for better circulation.
This circulation pattern from LL really works.
http://www.lian-li.com/Product/Chassis/...lassical_PC-6x_S/M_C_PC-6X_S_PC-60.htm

 

[Bobthelost]

Originally posted by: jack bauer
I heard flashing a new bios will kill your mobo. I have a a8n32 and want to update the bios but don't know if it' a good idea.

It can kill your motherboard, however the chances are very, very small. Just make sure you don't have a power cut and don't interrupt the process half way and you've got a very very good chance of it working fine (99%)

 

[AZReDWiNG]

WOW! The new BIOS makes a dramatic change. Before the new BIOS, I was idling at about 43 degrees. Now, 35 is my low and my mean is 37!

I knew that the temps had to be okay -- air tests and extra hole mods and all -- so I was just waiting for ASUS to release the fix for the temp probe.

 

[jack bauer]

me too. just updated them. 33C for CPU and 40C for mobo. Not in the 30C's but I was getting 55C!

 

[TheNewGuy8]

I just updated my bios as well thanks to this thread and saw an equally amazing difference. Temps went down at least 10c!

 

[jack111]

Thought I should update my bios.

upgraded the chipset drivers to the latest version from nvidia and than upgraded the bios driver using the bios update utility

now the pc will not boot up.

really stuck

cannot even enter the bios setup.

 

[jack bauer]

Some guy on the forums at asus said he saw my post on here. He said that the new 1205 BIOS DO NOT have a fix:




Jack,

Saw your post on Anandtech as well and I am a bit worried that a BIOS update would show such large reported temp drops when this is not a listed "fix"!?

Are we really saying that Asus screwed up on temp probe reporting for the first six-plus months of this boards existance and just adjusted BIOS to report lower temp???

Or even more alarming, are we saying that they have changed something in BIOS settings that generates 10C less heat in MB without affecting performance???

Either way I'd be worried! Some others on Anandtech are reporting big drops in temps reported with 1205 BIOS, but others here are not, and I'm not convinced at all that a BIOS update is the way to solve high temps.

I also read loads of forum posts saying they can't run 1205 or even 1103 BIOS, so what do they do??

I hope someone from Asus answers my latest "technical enquiry", as they haven't some others, but in the meantime let us know any other changes, and also note your MB shouldn't really be 8C above CPU, as with a well cooled system it would normally be the same or lower (mine with watercool on CPU & GPU's is 3-4C cooler all the time and that's with few fans!).

Ridesy

PS: Read my own post and just want to say - not having a dig at you at all, just worried that "logic" suggests a BIOS update shouldn't have this dramatic effect (unless posted for that reason) and I don't want others thinking this is a simple solution to there heat problems ------ unless of course it is!


What do you make of this?

 

[Ridesy]

Hi,

I'd like to keep this question high up on Anandtech forum, as the post before Jack's shows the exact problem I was trying to raise!

Can anyone here on Anandtech explain how/why a BIOS update would show such dramatically lower temps on the majority of "successful" installations, without affecting performance, as I was lead to believe part of this MB's heat issue was the way Asus designed it to run 2 x 16bit PCIe lanes.

So if they haven't adjusted this in the BIOS update (and not told us either, as they don't list this as a change) then how does the board generate 7-10C less heat on MB and CPU???

Any ideas????

PS: Any input on why some can install 1205 or 1103 BIOS with no hitches and others have major RAID and other problems would also be useful.

Ridesy