Can't get my CPU temps below 48 °C (load)

[suszterpatt]

Tried reseating the HSF several times and applying AS5 in different ways, but my load temps are constantly in the 47-54 °C range. Should I keep trying, or do I need better case fans?

 

[Bona Fide]

48C at load is wonderful...be happy.

 

[suszterpatt]

For a 3000+ at stock speeds? I'm planning to OC quite a bit, 48 °C doesn't look like a good starting point to me... how much do temps increase with serious OC's?

 

[Sparky19692]

What is your ambeant temp?

However you spell that

 

[suszterpatt]

Ambient.


Room temp is in the 20-25 °C range. Can't say anything specific about the case as my case sensor appears to be broken (reports 10 °C, wtf?), but the air my exhaust fan's pushing out is barely warm.

Sensor 3 (northbridge I believe) reports 28-30 °C if that's any help.

 

[MrKneecap]

I noticed large gains once I got more air flow into my case. Load went from a shocking 58 (at stock mind you), to 38. The trick is finding a healthy balance of CFM and noise (for me at least, less noise > better cooling).

 

[suszterpatt]

Originally posted by: MrKneecap
I noticed large gains once I got more air flow into my case. Load went from a shocking 58 (at stock mind you), to 38. The trick is finding a healthy balance of CFM and noise (for me at least, less noise > better cooling).

Same mindset here.

Btw, right now I got two 120mm fans rated at 19dB and 38CFM (one intake one exhaust), a 80mm 19dB 25CFM intake and the PSU's 120mm exhaust.

 

[najames]

Something doesn't seem right here. I am using a MSI Neo2 Plutonium also with a 3200+ Winny with a generic OEM style heatsink, AS5, and a gig of Patriot XBL. I have a cheapo aluminum case with 2x80mm in front another in back with the fan on the PSU and this computer is quiet too. I just checked the bios and it says 38C. Granted my AS5 has been on for a couple months but that shouldn't make a HUGE difference.

case:http://www.dealsonic.com/skmssialatxm.html
fans: http://www.newegg.com/Product/Product.asp?Item=N82E16835150007

 

[suszterpatt]

Btw... more often then not after reseating, it's 47-48 °C at first boot... then the next day it creeps up to like 54 °C and stays there until I decide to reseat it again.

The only way I could get a stable 48 °C so far was spreading out a good amount of AS5 on the heatspreader with a plastic bag, none of that rice grain bullsh!t.

 

[TheJollyFellow]

I'm currently having the same problem; though my temps are upper 50's. I ordered a 120mm to replace the 80mm fan in front, and a Vantec Tornado to replace the no-name fan I have on my XP-90 right now. Although loud, it should tell me whether it's my airflow or whether your heatsink is faulty.
Good Luck!

 

[bupkus]

FYI, I have a case I bought from Fry's on a Black Friday well over a year ago. It came with an Enermax PSU and a single fan opening in the back for an 80mm fan. The opening is positioned several inches below the PSU which of itself doesn't move much air. With light usage the temp goes up upon boot and using the graph feature in Speedfan I can see the progress quite clearly. I wait until the temp is set and then remove the side panel. The temp then dropped about 8 degrees C. From this I see the case cooling is the problem.
I'm going to cut blow-holes in all of my older cases and install 120mm fans. With a fan that big I can run it slow and quiet.
Here's a link to a thread I'm using to pursue the best cutting method.

 

[imported_Kensai]

Get a power supply which actually moves air out of the case and doesn't radiate heat to the CPU.

 

[suszterpatt]

Originally posted by: Kensai
Get a power supply which actually moves air out of the case and doesn't radiate heat to the CPU.

Older pic of the inside of my case:

http://img141.imageshack.us/img141/2893/cables7gc.jpg


Is it physically possible to radiate a significant amount of heat with those two 12cm fans constantly sucking it out?


edit: btw, I think I'm on to something this time. 45 °C at first boot, expected to increase to 50 °C during the next few days. We'll see how it holds up.

 

[imported_Kensai]

Originally posted by: suszterpatt

Originally posted by: Kensai
Get a power supply which actually moves air out of the case and doesn't radiate heat to the CPU.

Older pic of the inside of my case:

http://img141.imageshack.us/img141/2893/cables7gc.jpg


Is it physically possible to radiate a significant amount of heat with those two 12cm fans constantly sucking it out?


edit: btw, I think I'm on to something this time. 45 °C at first boot, expected to increase to 50 °C during the next few days. We'll see how it holds up.

Not in your case. In some setups it is quite possible.

~Your CPU is relatively far from the PSU so it shouldn't be a problem.
Maybe use a faster/stronger fan for your CPU?

 

[suszterpatt]

This fan's running at 1900RPM, I tried a 2300RPM one in hopes of getting better results, but apart from the slightly more annoying noise there was no difference in the temps. I wouldn't really want to get a fan any louder than this one anyway (yes, I realize the ramifications of that).

 

[suszterpatt]

And today it's back up at 55 °C.


This is nonsense. How can my temp increase 10 degrees overnight? Sensor broke?

 

[bigdogtech]

Hey Kensai - do you have a recommendation for a PSU that "actually moves air out of the case"? Appreciate it.

 

[NotquiteanooB]

I've noticed that most HSFans that I've used draw the air onto the heatsink and force it out the fins. I would seem to me to be better the other way... draw air in through the fins, up into the fan and away to the rear case exhaust fan. Even the Sonata II case has a guide for drawing air in from the rear and forcing it down through the Heatsink and out the fins. Seems like you're putting the heat in the fins back onto the CPU. The Nexus Breeze case draws air in from the bottom of the case and expels it out through the PS fan. the only better design I could imagine would be to put a fan in the top of the case and have a chimney effect; since hot air wants to rise, help it out the top.
I wouldn't worry too much about 48*C. My OC'd P4 is 51*C and the Barton 2800"s are 49*C underload, but not OC'd.

 

[suszterpatt]

I tried pulling air away from the CPU, it results in slightly higher temps (2-3 °C). I have an intake fan on the side almost exactly where the CPU is, so it's cooled by very "fresh" air.