Zotac ZBHOXHD-ID11 Case Positioning Impact on Fan Noise

As I was testing the ID11, I noticed differences in the thermal behavior based on how the case was positioned.
I tested three positions; case open, case vertical, and case horizontal.

This is the fifth post in a series of posts related to the Zotac ZBOX ZBOXHD-ID11.

Summary:

  • Place the case in a vertical position for best cooling.

 

I used the Beta BIOS for testing. I let the system sit idle, placed it under load, then back to idle, while I recorded the fan speed and temperatures. The ambient temperature was 21C / 70F.

 

Below are the CPU temperature and fan speed graphs for an open case:

CPUTIN.Case.Open

CPUFANIN0.Case.Open

 

Below are the CPU temperature and fan speed graphs for a vertical case:

CPUTIN.Case.Vertical

CPUFANIN0.Case.Vertical

 

Below are the CPU temperature and fan speed graphs for a horizontal case:

CPUTIN.Case.Horizontal

CPUFANIN0.Case.Horizontal

 

Summary:

Case Placement

Max CPU Temp

Max Fan Speed

Open Lid 55C 1700RPM
Vertical 59C 2350RPM
Horizontal 66C 3300RPM

 

From the data we can see that the fan does not appear to have sufficient ventilation, and that in the horizontal position the air flow appears to be severely restricted.

I am tempted to mod the case to allow for better airflow, maybe cut a larger opening for the intake, or replace the centrifugal blower fan with a conventional fan, something like the Scythe KAZE JYU SLIM.

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4 thoughts on “Zotac ZBHOXHD-ID11 Case Positioning Impact on Fan Noise”

  1. Am enjoying your postings bigtime; a question, though: Are you getting high-pitched buzzing from the entry point of the power plug during the off state? It disappears during power-on, or even during sleep when the blue light comes on intermittently.I suspect it is a design flaw rather than a RMA issue, possibly caused by the resistor coil or by the motherboard being poorly insulated from the chassis.

    Like

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