cooling not having effect

MR_MU53NDO · 6 May 2013 at 20:35

i bought an akasa Viper fan for my heatsink, and the speeds are normally quite low (about 750RPM). it's PWM so i installed Speedfan to see if i could make it faster. Speedfan told me the fan was at 29% speed, so i brought that up to 75% (through advanced tab to about 1400RPM). however, processor temperatures are still at around 46 degrees, despite the increased fan speeds for prolonged amounts of time...

i have Core 2 Quad Q6600 overclocked to 3.2ghz and a pretty basic heatsink.

there are 3 fans in the case (if that helps), front, top and rear.

Something Else · 6 May 2013 at 22:01

did you mount it properly?
what is the heatsink?
also what are your ambient temps?

anthony566 · 7 May 2013 at 00:29

If your CPU cooler isn't very efficient putting a faster fan on it wont help that much what cooler do you have and what case do you have ?

Orcvader · 7 May 2013 at 01:42

What load is the CPU at on 46c?

smilertoo · 8 May 2013 at 10:19

46c sounds ok for a q6600 doing 3.2ghz.

MR_MU53NDO · 8 May 2013 at 21:17

sorry for the delay... i forgot about this. anyway, here's the answers to near enough everybody's questions:

> It's a Corsiar A50 heatsink, but i replaced the fan because the original was too loud.

> Idle Temps are around 44-46 degrees, with load (gaming or 3d modelling) pushing it up to about 53-55 degrees.

> The case is a Thermaltake Element T.

> Ambient temps are around 27-29 degrees (when i use the machine most)

> the heatsink is mounted properly, with an average covering of thermal paste as well

The only problem is, if i get a new heatsink, i'll have to think about RAM clearance. the ram isn't particularly tall, but the current heatsink puts the fan almost touching the RAM...

MR_MU53NDO · 8 May 2013 at 21:18

also, any reason for core 3 being a much lower temp than the others? currently:

Core 1: 43
Core 2: 42
Core 3: 37
Core 4: 42

Resident · 9 May 2013 at 00:27

TBF I think your cooler isn't doing a bad job if the ambient air temp is practically 30°c.

I'm running a H100i with an ambient air of 19.1°c and my CPU is 28.2°c. (+9.1°c delta). Figures not too dissimilar to when I was using a Matterhorn (similar design to the A50)

IIRC as ambient air temp increases cooling efficiency drops so at almost 30° ambient air it's possible for the delta to have increased into double figures.

smilertoo · 9 May 2013 at 01:59

How can you sit and work in an ambient of 27-29c? That's stick to the chair temps.

doyll · 9 May 2013 at 08:32

Resident is on the right track. CPU temp - ambient temp + delta temp, and or every degree you increase the ambient temp you increase CPU temp the same degree.
So 40c at 22c is 18c delta,
and 46c at 28c is 18c delta.

MR_MU53NDO · 9 May 2013 at 13:26

so would it make much of a difference to add another fan onto the heatsink, or would i just be wasting time and money? or maybe i should just buy a fan for my room instead...