Mad Mr H
Prominent Member
Steves Marquee Fan Mods (Steve feel free to copy & paste under your own name - I dont want to make a habit of Quee mod posting [] !)
Original words from HK-Steve aka Swiss Steve
My Marquee 9500 has,
2x 120mm fans on the LVPS,
Plus 4x 120mm fans in the belly.
All are mounted on foam gaskets for mechanical isolation.
There is also sound insulation mounted in specific places to reduce air noise.
The original LVPS fans have 33.5cfm each, total of 67cfm,
My 2x 120mm fans have 43cfm each, total of 86cfm.
The original belly fans have 72cfm each, total of 216cfm,
My 2x 120mm fans have 58 cfm each, total of 232cfm.
Both an increase in air flow, but a reduction of noise to the point of just hearing the projector running.
I will be getting my sound level meter out tomorrow, so can feedback the noise level, I measured 29dB before this round of modifications.
I use the silenX fans, the original series, not the newer series.
I have tested the cfm output of both series, and they are pretty much spot on for the specs of cfm.
However the noise level of the newer series is not correct spec, they are higher noise level than what the spec says.
I have 4 fans in the belly not 2, they are lower cfm and lower noise, but having 4 makes up for the lower cfm.
The 29dB measurement was made while sitting under the projector, about 0.5m
When I put the meter along the exhaust side of the LVPS I got around 38dB
The LVPS does have some sound insulation inside to reduce noise,
I have cut out some of the square grill on the outlet side of the LVPS chassis. This is something that I believe does reduce the air noise.
Here are some images for you all,
LVPS installed into my stripped down chassis-
These fans are NOT the SilenX, these were my first test fans
Sound Insulation installed
Some of the exhaust outlet removed, all the edges have been cleaned up, not left like this photo
The SilenX fans I am using
The Belly Fan Tray Original and Modofied for 4x fans
4x 120mm SilenX fans installed, also 3x SilenX louder new generation fans
STEVE is currently working on the following level tests.
I will put in a OEM LVPS, with 92mm NMB fans
Then put in a set of 92mm Papst fans,
Then a set of 92mm SilenX fans,
Then I will move onto a set of 120mm NMB fans
Then a set of 120mm Papst fans
Then Finally a set of 120mm SilenX fnas.
I will record all the noise levels in Standby and Projector ON.
Hope this helps you guys.
Original words from HK-Steve aka Swiss Steve
My Marquee 9500 has,
2x 120mm fans on the LVPS,
Plus 4x 120mm fans in the belly.
All are mounted on foam gaskets for mechanical isolation.
There is also sound insulation mounted in specific places to reduce air noise.
The original LVPS fans have 33.5cfm each, total of 67cfm,
My 2x 120mm fans have 43cfm each, total of 86cfm.
The original belly fans have 72cfm each, total of 216cfm,
My 2x 120mm fans have 58 cfm each, total of 232cfm.
Both an increase in air flow, but a reduction of noise to the point of just hearing the projector running.
I will be getting my sound level meter out tomorrow, so can feedback the noise level, I measured 29dB before this round of modifications.
I use the silenX fans, the original series, not the newer series.
I have tested the cfm output of both series, and they are pretty much spot on for the specs of cfm.
However the noise level of the newer series is not correct spec, they are higher noise level than what the spec says.
I have 4 fans in the belly not 2, they are lower cfm and lower noise, but having 4 makes up for the lower cfm.
The 29dB measurement was made while sitting under the projector, about 0.5m
When I put the meter along the exhaust side of the LVPS I got around 38dB
The LVPS does have some sound insulation inside to reduce noise,
I have cut out some of the square grill on the outlet side of the LVPS chassis. This is something that I believe does reduce the air noise.
Here are some images for you all,
LVPS installed into my stripped down chassis-
These fans are NOT the SilenX, these were my first test fans
Sound Insulation installed
Some of the exhaust outlet removed, all the edges have been cleaned up, not left like this photo
The SilenX fans I am using
The Belly Fan Tray Original and Modofied for 4x fans
4x 120mm SilenX fans installed, also 3x SilenX louder new generation fans
STEVE is currently working on the following level tests.
I will put in a OEM LVPS, with 92mm NMB fans
Then put in a set of 92mm Papst fans,
Then a set of 92mm SilenX fans,
Then I will move onto a set of 120mm NMB fans
Then a set of 120mm Papst fans
Then Finally a set of 120mm SilenX fnas.
I will record all the noise levels in Standby and Projector ON.
Hope this helps you guys.