Hi all
Of course there are several way to do this. But I want to share the info and my experience...
I have noted that if the DM8000 is used for a long time without going into "stand by" and the HDD at the same time is used a lot, the temperature could go up quite a bit. I have measured this with a temperature probe. The hard disk temp sensor in the DM8000 shows similar values. It's probably not critical in normal room temperatures, but lower temperatures will give longer life.
I know you could put a small fan behind the HDD in the built in slot. However… lower fan diameters will give higher RPMs (and therefor more noise) to get the same air flow. Therefor I chosed to put in a bigger fan. I chosed one that is known to be one of the best out there. I took a "NOCTUA NF-R8 SILENT CASE FAN 80MM". A few resistors and connectors comes with the product for different air flows. Also the rubber mounting also comes with the the fan. The lowest RPM (800 rpm/minute) give a noise level as low as 7 dB. No tools needed for mounting.
The pictures shows I have a Seagate HDD. However… I have now switched that 300 GB Seagate for a WD Green 1 TB disk with a max effect of 5,4W. I can tell it will give lower temperatures together with this fan… With this Noctua fan and the WD green disk, you can do anything (record 3-4 streams at the same time over a long period) without the DM8000 HDD temperature sensor goes over 35 degrees celsius. Before this HDD and Noctua fan, the DM8000 could under extreme circumstances go up and almost reach 50 degrees celsius.
Note that I after the pictures have switched direction of the flow to instead push cool air into the box instead of sucking it out. This to not work against the fact that hot air goes up. Also... as the fan is not black, I have painted the top of it with a black pen so it will be invisible from outside.
The fan will always be on, and only be off if you go into deep standby. As the fan has >150000 hours or MTBF (more than 50 times better than the OLED display), takes approx 1,32 W and can't be heard, it's not a problem...
All pictures are in this link:
incedo.eu/~sjoholmp/misc_internet_links/fan_DM8000/
[Blockierte Grafik: http://www.incedo.eu/~sjoholmp/misc_internet_links/fan_DM8000/IMG_0109.JPG]
[Blockierte Grafik: http://www.incedo.eu/~sjoholmp/misc_internet_links/fan_DM8000/IMG_0122.JPG]
[Blockierte Grafik: http://www.incedo.eu/~sjoholmp/misc_internet_links/fan_DM8000/IMG_0124.JPG]
[Blockierte Grafik: http://www.incedo.eu/~sjoholmp/misc_internet_links/fan_DM8000/IMG_0140.JPG]
[Blockierte Grafik: http://www.incedo.eu/~sjoholmp/misc_internet_links/fan_DM8000/IMG_0141.JPG]
/Per-Olov
Of course there are several way to do this. But I want to share the info and my experience...
I have noted that if the DM8000 is used for a long time without going into "stand by" and the HDD at the same time is used a lot, the temperature could go up quite a bit. I have measured this with a temperature probe. The hard disk temp sensor in the DM8000 shows similar values. It's probably not critical in normal room temperatures, but lower temperatures will give longer life.
I know you could put a small fan behind the HDD in the built in slot. However… lower fan diameters will give higher RPMs (and therefor more noise) to get the same air flow. Therefor I chosed to put in a bigger fan. I chosed one that is known to be one of the best out there. I took a "NOCTUA NF-R8 SILENT CASE FAN 80MM". A few resistors and connectors comes with the product for different air flows. Also the rubber mounting also comes with the the fan. The lowest RPM (800 rpm/minute) give a noise level as low as 7 dB. No tools needed for mounting.
The pictures shows I have a Seagate HDD. However… I have now switched that 300 GB Seagate for a WD Green 1 TB disk with a max effect of 5,4W. I can tell it will give lower temperatures together with this fan… With this Noctua fan and the WD green disk, you can do anything (record 3-4 streams at the same time over a long period) without the DM8000 HDD temperature sensor goes over 35 degrees celsius. Before this HDD and Noctua fan, the DM8000 could under extreme circumstances go up and almost reach 50 degrees celsius.
Note that I after the pictures have switched direction of the flow to instead push cool air into the box instead of sucking it out. This to not work against the fact that hot air goes up. Also... as the fan is not black, I have painted the top of it with a black pen so it will be invisible from outside.
The fan will always be on, and only be off if you go into deep standby. As the fan has >150000 hours or MTBF (more than 50 times better than the OLED display), takes approx 1,32 W and can't be heard, it's not a problem...
All pictures are in this link:
incedo.eu/~sjoholmp/misc_internet_links/fan_DM8000/
[Blockierte Grafik: http://www.incedo.eu/~sjoholmp/misc_internet_links/fan_DM8000/IMG_0109.JPG]
[Blockierte Grafik: http://www.incedo.eu/~sjoholmp/misc_internet_links/fan_DM8000/IMG_0122.JPG]
[Blockierte Grafik: http://www.incedo.eu/~sjoholmp/misc_internet_links/fan_DM8000/IMG_0124.JPG]
[Blockierte Grafik: http://www.incedo.eu/~sjoholmp/misc_internet_links/fan_DM8000/IMG_0140.JPG]
[Blockierte Grafik: http://www.incedo.eu/~sjoholmp/misc_internet_links/fan_DM8000/IMG_0141.JPG]
/Per-Olov