HEXUS.community discussion forums - View Single Post - CPU Cooling

TAKTAK · 04-01-2009, 04:01 PM

Layout:

All air flow is to the top of the photos...

-------------------
Single Fan Top
-------------------
Pulling air through the cooler

Idle

Loaded with Orthos

Code:

 ______________________________
|Single Fan: *                 |
|______________________________|
|Idle 0~5%:                    | 
|______________________________|
|CPU: 39°C                     |
|MOBO: 36°C                    |
|GFX: 43°C                     |
|                              |
|CPU fan: 610rpm               |
|______________________________|
|______________________________|
|______________________________|
|______________________________|
|Loaded with orthos:           |
|______________________________|
|CPU: 49°C                     |
|MOBO: 38°C                    |
|GFX: 45°C                     |
|                              |
|CPU fan: 904rpm               |
|______________________________|

CPUΔ = 10°C
MOBOΔ = 2°C
GFXΔ = 2°C

CPUFanΔ = 296 RPM

-----------------------
Single Fan Bottom
-----------------------
Pushing air through the cooler

Idle

Loaded with Orthos

Code:

 ______________________________
|Single Fan: *                 |
|______________________________|
|Idle 0~5%:                    | 
|______________________________|
|CPU: 39°C                     |
|MOBO: 30°C                    |
|GFX: 41°C                     |
|                              |
|CPU fan: 593rpm               |
|______________________________|
|______________________________|
|______________________________|
|______________________________|
|Loaded with orthos:           |
|______________________________|
|CPU: 52°C                     |
|MOBO: 34°C                    |
|GFX: 41°C                     |
|                              |
|CPU fan: 894rpm               |
|______________________________|

CPUΔ = 13°C
MOBOΔ = 4°C
GFXΔ = 0°C

CPUFanΔ = 301 RPM

-------------------------
Dual fan in push pull
-------------------------
Bottom fan is pushing air, top fan is pulling air through the cooler

Idle

Loaded with Orthos

Code:

 ______________________________
|Dual Fan: **                  |
|______________________________|
|Idle 0~5%:                    | 
|______________________________|
|CPU: 33°C                     |
|MOBO: 34°C                    |
|GFX: 44°C                     |
|                              |
|CPU fan: 488rpm               |
|______________________________|
|______________________________|
|______________________________|
|______________________________|
|Loaded with orthos:           |
|______________________________|
|CPU: 43°C                     |
|MOBO: 36°C                    |
|GFX: 45°C                     |
|                              |
|CPU fan: 728rpm               |
|______________________________|

CPUΔ = 10°C
MOBOΔ = 2°C
GFXΔ = 1°C

CPUFanΔ = 240 RPM

so side by side results:

Idle
Top/Bottom/Both

The CPU has a 6°C lower idle when both fans are used as opposed to singular orientations in both cases.

Loaded
Top/Bottom/Both

The CPU has a 6°C lower load when both fans are used as opposed to singular orientation of a fan pulling air through the cooler.
The CPU has a 9°C lower load when both fans are used as opposed to singular orientation of a fan pushing air through the cooler.