Jump to content


Welcome to DBSTalk


Sign In 

Create Account
Welcome to DBSTalk. Our community covers all aspects of video delivery solutions including: Direct Broadcast Satellite (DBS), Cable Television, and Internet Protocol Television (IPTV). We also have forums to discuss popular television programs, home theater equipment, and internet streaming service providers. Members of our community include experts who can help you solve technical problems, industry professionals, company representatives, and novices who are here to learn.

Like most online communities you must register to view or post in our community. Sign-up is a free and simple process that requires minimal information. Be a part of our community by signing in or creating an account. The Digital Bit Stream starts here!
  • Reply to existing topics or start a discussion of your own
  • Subscribe to topics and forums and get email updates
  • Send private personal messages (PM) to other forum members
  • Customize your profile page and make new friends
 
Guest Message by DevFuse

Photo
- - - - -

Which runs cooler?


  • This topic is locked This topic is locked
16 replies to this topic

#1 OFFLINE   Paul A

Paul A

    Godfather

  • Registered
  • 422 posts
Joined: Jul 12, 2007

Posted 24 October 2007 - 11:04 PM

HR20-700
HR20-100
or
HR21

I have a cabinet that's not well ventilated. I plan on improving the venting but in the meantime I'm about to buy another HR20-700 but I would consider the HR21 if it runs cooler.

Paul

...Ads Help To Support This SIte...

#2 OFFLINE   mooniac

mooniac

    AllStar

  • Registered
  • 60 posts
Joined: Sep 27, 2006

Posted 24 October 2007 - 11:06 PM

I have 2 HR20-700s, both in very similar cabinets and one runs 109 and the other 123 so I'm not sure if you can really decide from the data you'll get here.

#3 OFFLINE   Paul A

Paul A

    Godfather

  • Topic Starter
  • Registered
  • 422 posts
Joined: Jul 12, 2007

Posted 24 October 2007 - 11:25 PM

I have 2 HR20-700s, both in very similar cabinets and one runs 109 and the other 123 so I'm not sure if you can really decide from the data you'll get here.


hmmm, that's interesting.

The HR20-700 has vents on the top and I believe the HR20-100 and HR21 are enclosed on top. I wonder how much the ventilation on top of the HR20-700 helps with cooling?

#4 OFFLINE   cdizzy

cdizzy

    Icon

  • Registered
  • 892 posts
Joined: Jul 28, 2007

Posted 24 October 2007 - 11:41 PM

The HR20-100 runs far cooler than the -700. I have only seen mine hit 100 once. It's usually around 98.

I don't know what the HR21 runs at.

HR44-200 Genie

Genie clients X2

HR21-100

DirecTV customer since 2003


#5 OFFLINE   gulfwarvet

gulfwarvet

    Hall Of Fame

  • DBSTalk Club
  • 2,205 posts
Joined: Mar 07, 2007

Posted 25 October 2007 - 12:09 AM

hmmm, that's interesting.

The HR20-700 has vents on the top and I believe the HR20-100 and HR21 are enclosed on top. I wonder how much the ventilation on top of the HR20-700 helps with cooling?


it's not how many or how big the vents are, for they only offer more radiant cooling. it has to do with the CFM's that the Fan can pull outside air across the Hard drive.

with the Hr20-700 it has the open vent enclosure on top that adds to the radiant cooling. But by doing it this way it is harder for the fan to force cooler outside air into the unit. therefore, the Fan has less velocity of air to pull and push for it a open enclosure. causing it to run at a higher Temp.

average temp on my HR20-700 is 127 degrees without a chill pad.

with the HR20-100 it has the closed enclosure with smaller vents placed in certain locations increases the ability of the fan to pull outside air and direct it across the Hard Drive and push it out again at a faster rate of CFM's. therefore, the air flow is faster and channeled through out the unit lowering the temp.

average temp on my HR20-100 is 97 degrees without a chill pad
DBSTalk Chat Room Moderator

#6 OFFLINE   Jeremy W

Jeremy W

    Hall Of Fame

  • Registered
  • 13,447 posts
Joined: Jun 18, 2006

Posted 25 October 2007 - 12:18 AM

My HR21-700 is currently at 115, with no extra cooling contraptions.

#7 ONLINE   paulman182

paulman182

    Hall Of Fame

  • Registered
  • 4,836 posts
Joined: Aug 04, 2006

Posted 25 October 2007 - 05:08 AM

As far as I know, no one has confirmed that the temperature is measured at the same point in the units.

Equipment includes a buncha stuff that I no longer have interest in detailing


#8 OFFLINE   toneman

toneman

    Legend

  • Registered
  • 102 posts
Joined: Oct 23, 2007

Posted 25 October 2007 - 02:55 PM

Also keep in mind that ambient (i.e., surrounding) temps will affect the HR** temp readings--IOW you can't tell me that your HR** temp remains relatively stable no matter how warm or cool your living/family/HT room is.

In my case--the HR20-100 sits by itself on the upper shelf of a two-shelf enclosed HT cabinet in which the front door of the cabinet is closed, while the back of the cabinet is open (i.e., no panel on the back side). With the room temp in the mid-70s, my HR20 typically reports temps in the mid-100s (usually around 104); FWIW the area on/near the left side of my HR20 feels noticeably warmer, compared to the right side of the HR20 which feels almost as cool as a cucumber.

#9 OFFLINE   Stuart Sweet

Stuart Sweet

    The Shadow Knows!

  • Super Moderators
  • 36,870 posts
Joined: Jun 18, 2006

Posted 25 October 2007 - 03:03 PM

The temperature readings on the HR20-100 are lower, but I don't know if that really means the ambient temperature is lower. I know it means the temperature around the sensor is lower.
Opinions expressed by me are my own and do not necessarily reflect
those of DBSTalk.com, DIRECTV, DISH, The Signal Group, or any other company.

#10 OFFLINE   Robert Norman

Robert Norman

    Mentor

  • Registered
  • 36 posts
Joined: Aug 26, 2005

Posted 26 October 2007 - 05:51 AM

My HR20-100 temperature stays between 102 and 105. My HR20-700 stays between 125 and 130 degrees. They set side by side in an open cabinet that is very ventilated.
Mike
DIRECTV customer since Jan 1996
Dish: 5 LNB Slimline with Zinwell WB68 MS +
3 LNB dish with Terk 5X8 power MS
Attic: RS Medium range outdoor OTA antenna
connected to Terk 5x8 MS
HR20-100 DVR with 750G Seagate E-SATA drive
HR20-700 DVR with 750G Seagate E-SATA drive
HR10-250 DVR
H20 High Def receiver
R10 DVR Standard DVR
Sony SAT-60 Standard DVR when twin 120G drives
Philips DSR6000 Standard DVR when single 120G drive
RCA DIRECTV receiver

#11 OFFLINE   cmoss5

cmoss5

    1960'S NOSTALGIA

  • DBSTalk Club
  • 128 posts
Joined: May 26, 2006

Posted 26 October 2007 - 05:55 AM

HR20-700
HR20-100
or
HR21

I have a cabinet that's not well ventilated. I plan on improving the venting but in the meantime I'm about to buy another HR20-700 but I would consider the HR21 if it runs cooler.

Paul


THE HR20-100 RUNS 10 TIMES COOLER THAN THE HR20-700...BELIEVE ME AS I HAVE 1 OF EACH OF THESE IN MY HOME...

#12 OFFLINE   Jeremy W

Jeremy W

    Hall Of Fame

  • Registered
  • 13,447 posts
Joined: Jun 18, 2006

Posted 26 October 2007 - 04:02 PM

THE HR20-100 RUNS 10 TIMES COOLER THAN THE HR20-700...BELIEVE ME AS I HAVE 1 OF EACH OF THESE IN MY HOME...

I BELIEVE YOU ARE EXAGGERATING JUST A BIT...

#13 ONLINE   armophob

armophob

    Difficulty Concen........

  • DBSTalk Club
  • 6,964 posts
Joined: Nov 13, 2006

Posted 26 October 2007 - 04:31 PM

The HR20-700 runs very warm to the touch like an old 1980's VCR, which is irritating. As I understand it the other 2 do not. For that reason alone I would pick one of the other 2 and would make the OTA the deciding factor.

#14 OFFLINE   Paul A

Paul A

    Godfather

  • Topic Starter
  • Registered
  • 422 posts
Joined: Jul 12, 2007

Posted 27 October 2007 - 08:29 AM

The HR20-700 runs very warm to the touch like an old 1980's VCR, which is irritating. As I understand it the other 2 do not. For that reason alone I would pick one of the other 2 and would make the OTA the deciding factor.


Agreed - I opted to buy a hr21-700 since I dont use ota. I moved my egg cooker to another room so that it's not enclosed in a cabinet. That's one big heatsink!

Paul

#15 ONLINE   armophob

armophob

    Difficulty Concen........

  • DBSTalk Club
  • 6,964 posts
Joined: Nov 13, 2006

Posted 27 October 2007 - 08:35 AM

Agreed - I opted to buy a hr21-700 since I dont use ota. I moved my egg cooker to another room so that it's not enclosed in a cabinet. That's one big heatsink!

Paul


Nice, very nice. I want one now.:D

#16 ONLINE   armophob

armophob

    Difficulty Concen........

  • DBSTalk Club
  • 6,964 posts
Joined: Nov 13, 2006

Posted 27 October 2007 - 12:22 PM

I went as far as to call the CSR's and request a leased trade in to replace my HR20-700's for HR21's. The rep I spoke with said they have no way of selecting which dvr I will receive.

#17 OFFLINE   hilmar2k

hilmar2k

    Hall Of Fame

  • Registered
  • 5,251 posts
Joined: Mar 18, 2007

Posted 27 October 2007 - 12:25 PM

THE HR20-100 RUNS 10 TIMES COOLER THAN THE HR20-700...BELIEVE ME AS I HAVE 1 OF EACH OF THESE IN MY HOME...


Exactly how is that math done? Ten times what? Just curious.




Protected By... spam firewall...And...