Need to reduce temps using alpha8045

[hito]

I reseated the alpha redid all the steps and didn't help all that much. I even used the extra washers on the springs for added pressure. So what would you guys is the problem here?

Intake: panaflo 92mm 42.7cfm 27dBa
Exhaust: papst 27cfm 19dBa & psu fan(estimate to be around in the mid 30's cfm)
CPU: 80mm 35cfm

Case: Enlight 7237

Mobo: A7V266-E (Heard asus likes to make the temps a bit higher...)

idle: 52C(126F)
load: 57C(135F)
case: 28C(82F)
ambient: 21C(70F)

CPU: 1200@1300(10x130)

Temps are a bit high and would like to reduce the temps without increasing noise levels.

 

[Cosmo3]

Your case temps look a bit high. Try it with the side panel of your case off and see what the temps are if it goes down quite a bit then maybe you should put a blowhole in the side of your case to bring the case temps down. If you do that your cpu temp should drop to the 40s.

 

[hito]

Well, I removed the side panel and it dropped the case temp and cpu temp. The case temp is now 23-24C and the cpu idle temp is 48C. So what should I do to keep the temps around this area with the side panel on? As you have stated I should create a blowhole. (exhaust or intake?) What should the cfm be around? As too much would perhaps make the condition even worse?

 

[SWScorch]

Just wondering: what temps do you get at the default clock speed? Some CPUs just dont like being overclocked. I have a 1GHz that can hit 1.3 (and beyond I am sure), but an 800 that will barely do 950.

As for blowholes, I think a good layout would be to have a 80-92mm fan situated above the PCI cards as an intake, and then an 80mm blowhole above the HSF, maybe a little higher, with approximately the same cfm rating.

BTW, are you positive that the HSF isnt making contact with any component of the motherboard? I have an Asus A7V, and was experiencing the same problem you are, and it took me 3 hours to realize that the corner of the HS was touching the DIMM slot and was causing that edge to be slightly higher, thereby minimizing contact between the CPU and the HSF.

 

[hito]

Just a few minutes ago, I took two zip ties and tied a 80mm panaflo 21cfm fan to the side. Enlight cases has these grills on the side. It's a temporary solution for now at least. My comp is idling at 49C and case temp is 25C. The heatsink is not touching anything like a dimm slot for example. It is very close to touching it, but not touching. As for the default temps... I believe they were something like 1-3C lower then overclocked. Voltage is at default.

 

[HappyPuppy]

28C is not a bad case temp. A decent HSF should keep your processor within 10-12C of the case temp.

Do you have the fan on the Alpha sucking air off the HS or blowing air onto it? The Alpha is designed to suck air off the sink although some people have had better luck the other way.

Also, did you use ASII or other thermal compound when mounting the HSF?

 

[hito]

Yah I used arctic silver when I mounted the heatsink. I tried both sucking and blowing direction on the fan. It works better when sucking from the heatsink. When blowing, the temp went up by about 3C.

 

[Kipper]

I think the problem here is case airflow, not the fan on the HSF itself. Try moving the Panaflo to the back of the case and the Papst to the front. You have more air coming in than your fans can suck out, which can sometimes create a problem, especially when you have a large volume of air going through the heatsink fan...

 

[Mikewarrior2]

happy Puppy,

That statement is extremely misleading, seeing as how every socket-a MB reads temps differently, due to thermistor placement, motherboard compensation, etc.


Everyone else,

Asus uses more compensation than other motherboard manufacturers to the socket-thermistor readings. Does this make it more or less accurate than other mb's? No. But it does give a better "representation" of CPU DIE temperature (as socket-thermistors often report well under actual temps).. It is normal for an asus board to be operating in the 50C range under load.



Mike

 

[ku]

I highly doubt it is the case airflow. I have the worse airflow in my case (get almost 40C case temp sometimes during the summer) but my CPU temp never exceeds 48C (let alone 43 in any other season). I think you should really clean and check out the your core and the heatsink. look for chips or something on the core and scratches and such on the heatsink. You should really look carefully at everything and see if there is anything that is preventing the motherboard from a even mounting.

 

[Mikewarrior2]

Ku,

what are you basing your statement on? Do you have exactly the same setup as Hito?

If not, then you can't comapre your temps to his... once again, every socket-a MB reads temps differently.

If you had an A7v266E, you'd probably have temps in the range of 60-70C because of how the a7v266E reads temps.


Mike

 

[hito]

<<
Asus uses more compensation than other motherboard manufacturers to the socket-thermistor readings. Does this make it more or less accurate than other mb's? No. But it does give a better "representation" of CPU DIE temperature (as socket-thermistors often report well under actual temps).. It is normal for an asus board to be operating in the 50C range under load.
>>



If Asus compensates more than any other motherboard manufacturer I have a question. Just about how much more does it compensate comparing to the other name brands out there? Abit, MSI, Soyo, Epox in particular

 

[Mikewarrior2]

I can't give you exact numbers between each mb, but i can give you a fairly good observational estimate:

Asus + 5-10C
Abit = our baseline
Soyo = -2-4C
Epox = -3-6C
MSI = -7-10C

now, for awhile, with the K7T-turbo series, with the good socket-thermistor placement (not really possible, but better than most boards), they were up there with asus in terms of "normal" temps.

Now, with the k7t-pro266, they've gone back to using a smd-resisotr in the socket-base. They've gone back to probably haveign the worst mainstream MB readings out there.



Mike

 

[hito]

Thanks for the info! Just wish we could use the thermal diode in the chips, then we wouldn't need these compensations at all

But then i'll have to upgrade again