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Discussion in 'DIRECTV HD DVR/Receiver Discussion' started by hoopsrgreat, Jul 23, 2007.
So who can we get to voluteer to try this with their HR20?
Any UL lab people out there??
I would like to see someone with some engineering background test actual power usage, and determine how much electricity is being wasted in generating heat.
My granddad was an appliance repairman and he told me once that heat is a byproduct of inefficient engineering. He didn't understand computers one whit but I think he'd be pretty unhappy looking at all the huge fans in the servers I work with. It's not an HR20 problem, it's an industry problem. There's too much wasted energy in computers of all kinds.
It's just a matter of what your doing.. if we all wanted to go back to pentium 1 speeds we wouldn't need fans at all
I preheated my oven to 200 degrees then put the HR20 in for 30 minutes. Not only did it work afterward, but it now has dual live buffers.
Harumph. Talk about half-baked.
Cabinet looks great! I don't like the placement of the HR20-700 as heat rises, but if it's stays nominal, it works.
I have a 6" axial fan, 55cfm, 115 volts, on my HR20 (purchased at Grainger's for $21). Temps at 98 degrees with no AC on in house (85 degrees outside).
Well I can safely say that 100 percent of the power is ultimately turned into heat. Whether that is a waste or not depends on what program you're watching. :lol:
The -100 has a built-in ventilation fan located on the bottom of the unit. The -700 AFAIK relies on passive cooling (no fan). This may explain why the -100 runs cooler.
This also means that if you have a -700 you should try to place it somewhere that the top of the unit is not obstructed. Since the -100 ventilates through the bottom and sides you can probably get away with placing something on top of it.
The -700 has a fan located between the hard drive and the access card slot. It kicks in to maintain 127 degrees.
I asked if it was a temp sensor location that made the 100 read cooler and was told, no the temp sensor is in the same place relative to the hard drive, it's just cooler.
I wish I was "just cooler"
lamontcrantson: "He's one cool dude"
I put the Targus chill mat under my -100 last night. The temp ended up getting to 116, and I was expecting a little better result. What would be the best place and position for the Targus and the -100?
Don't worry.. My HR20-700 runs 127-129 most of the time and I have had it for 8-9 months and it's still performing beautifully.