1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

H24 and HR24 operating temp

Discussion in 'DIRECTV HD DVR/Receiver Discussion' started by Dwight M, Jul 22, 2010.

  1. hdtvfan0001

    hdtvfan0001 Well-Known Member

    32,456
    258
    Jul 28, 2004
    Yeah...they do vary don't hey.

    My HR24-100 runs steady at 112-113. Side to side good ventilation.

    The HR24-500's seem to have a wider range of temps with it's rear cooling fan design....not sure why....but that part has become pretty well documented.
     
  2. Rich

    Rich DBSTalk Club DBSTalk Club

    27,269
    554
    Feb 22, 2007
    Piscataway, NJ
    Maybe it doesn't matter. We've been worried about temps before and nothing ever really came of it.

    Rich
     
  3. hdtvfan0001

    hdtvfan0001 Well-Known Member

    32,456
    258
    Jul 28, 2004
    Temps 120 degrees or lower on a non-issue anyway.
     
  4. MurrayW

    MurrayW Legend

    171
    0
    Apr 13, 2006
  5. hdtvfan0001

    hdtvfan0001 Well-Known Member

    32,456
    258
    Jul 28, 2004
    The only thing that would seem to line up with those results would be if the external drive causes the internal cooling fan to shut down....resulting in hotter temps in the unit.

    Otherwise.....not sure what else it could be.
     
  6. MurrayW

    MurrayW Legend

    171
    0
    Apr 13, 2006
    No, I don't think the internal fan could be shutting off. If that was the case the temperature would never have dropped with the fan blowing on the external hard drive while not blowing on the DVR.
     
  7. Richierich

    Richierich Hall Of Fame

    8,489
    7
    Jan 10, 2008
    My temperature on my HR24-500 was 126 before I added a Laptop Cool Pad to the mix which lowered it to 117 but that is still higher than most people report without the Pad.

    Mine is in an enclosed cabinet but the Front and Back is Open now due to my having high temperatures and my Denon AVR5803 has tripped off several times now and I think it is due to high temps so I am going to buy a fan for it.

    It also may be that the Power Supply Unit is getting old and needs to be replaced as when they get old they tend to bulge out and the power output becomes more Marginal so you have to crank it up more to get the same amount of output power and then it goes into Safe Mode and Shuts Down!!!
     
  8. hdtvfan0001

    hdtvfan0001 Well-Known Member

    32,456
    258
    Jul 28, 2004
    Perhaps....but if that same fan circulated the air enough to benefit the HR24 itself with added air-flow....you get the idea.

    There is only one temp sensor, and its inside.
     
  9. Steve

    Steve Well-Known Member

    23,056
    153
    Aug 22, 2006
    Lower...
    Without reading the other thread, that makes perfect sense to me. The "temp" reading we get is probably being reported by the hard drive's S.M.A.R.T. monitor, and I'd expect the external drive to run hotter.

    EDIT: I just checked my H21-200 and H24-700, and neither displays internal temperature, so it's apparently drive temp being reported, and not case temp.
     
  10. Rich

    Rich DBSTalk Club DBSTalk Club

    27,269
    554
    Feb 22, 2007
    Piscataway, NJ
    I think it's always been the temp sensor on the internal drive that we see in the info page.

    Rich
     
  11. Rich

    Rich DBSTalk Club DBSTalk Club

    27,269
    554
    Feb 22, 2007
    Piscataway, NJ
    Big difference on my setup. Without the external drive the 24-500 runs at a steady 108 degrees. With the Thermaltake docking station it ranges from 104-108. Right now it is at...104 degrees. But I'm using a WD EVDS 2TB HDD and perhaps that explains the difference.

    In any event, as far as I know, the temp reading is always from the temp sensor on the internal HDD.

    Rich
     
  12. Steve

    Steve Well-Known Member

    23,056
    153
    Aug 22, 2006
    Lower...
    I think Murray's testing indicates without a doubt it's the temp of whichever drive is active.


     
  13. Rich

    Rich DBSTalk Club DBSTalk Club

    27,269
    554
    Feb 22, 2007
    Piscataway, NJ
    Could be that Hitachi drive he's using. That's the big difference between my 24-500 with a WD EVDS 2TV HDD setup and his. That and the docking station I'm using.

    A couple weeks (or months, the time goes so quickly) ago, I swore I'd never use another external device. The only reason I tried the Thermaltake docking station was because a member was looking for a truly silent external setup for his room. Now I find myself amazed at how cool the external HDD is to the touch. Cooler than my MX-1, cooler than my Xtremes. Just warm to the touch. If it holds up and lasts a long time, I don't see how any other external device can beat it.

    Rich
     
  14. Steve

    Steve Well-Known Member

    23,056
    153
    Aug 22, 2006
    Lower...
    You may be right about Hitachi drives, but if you're responding to the "internal fan shutting down theory", the internal temp of the box is not being reported.
     
  15. Rich

    Rich DBSTalk Club DBSTalk Club

    27,269
    554
    Feb 22, 2007
    Piscataway, NJ
    I don't see how that can be. And, as I'm sure you've noticed, I usually (always?) agree with you.

    Think about this from an electrical standpoint. If a greater "load" is put on any electrical device (and the HRs are, first, an electrical device) the greater "load" causes the amperage to rise causing the temperature to rise. Couldn't the Hitachi drive cause a greater load on the HR itself?

    I'm certainly not seeing that kind of heat rise using an external drive on my 24. In fact, the temp of the 24 goes down when I use the external drive. Something has to be causing his temp to rise. The only two things it could be are the enclosure and the HDD, which are both different than mine.

    Also, consider what happens when you remove the power cable from the internal of an HR and run it off an external drive. You get 32 degrees. When you put an external drive on a 21, you get 77 degrees and the fan stops running. None of the previous HRs gave you a read out of the external HDDs and, since externals are not supported, why would he be reading the external's temp on his HR?

    Rich
     
  16. Rich

    Rich DBSTalk Club DBSTalk Club

    27,269
    554
    Feb 22, 2007
    Piscataway, NJ
    I'm not sure about the internal fan shutting down on the 24s. I've never had one open. I detailed what I have observed about the fans on other HRs in my last post. I always hear the 24's fan running when I put my head into the cabinet to see if the docking station or the HDD is making any noise. So it certainly runs with the external drive hooked up. And it runs at 104 degrees.

    Rich
     
  17. hdtvfan0001

    hdtvfan0001 Well-Known Member

    32,456
    258
    Jul 28, 2004
    My 1TB Hitachi drives run steady at 112-113 degrees all the time.
     
  18. Steve

    Steve Well-Known Member

    23,056
    153
    Aug 22, 2006
    Lower...
    Maybe because you're removing the internal power cable and not just plugging in the external? If the HR expects the internal drive to be spinning, even if an external drive is active, that could explain erratic reporting.

    Not officially supported, but the SMART monitoring info is generated by the drive itself.

    I know we usually always agree :), but I don't see any other way to explain that when Murray pro-actively cooled his external drive, he saw the reported temp drop 29 degrees in 15 minutes.

    Also, if the drive temp is a critical measure, from an engineering standpoint why wouldn't you always want report the temp of the active drive? eSATA may not be officially supported, but the fact the units were designed with external SATA ports means that they contemplated this use in advance, with the intention of perhaps someday supporting it.
     
  19. Rich

    Rich DBSTalk Club DBSTalk Club

    27,269
    554
    Feb 22, 2007
    Piscataway, NJ
    I haven't seen any erratic reporting. Each time I disconnected an internal and booted up the 20-700s on the externals each read 32 degrees. Each time I put an external on a 21, I got 77 degrees. Each reading was constant. And as soon as you put an external drive on a 21 the fan immediately stops running. I had a piece of toilet paper hanging over the intake (exhaust?) port of a 21-700 for a long time and I never saw that TP move. Not once.

    I don't know enough to argue that point one way or the other. All I can do is rely on my observations of 20-700s and 21s. Those, I'm certain did not read the temp of the external drive.

    OK, this I can discuss. Suppose the Hitachi runs really hot and puts a heavy "load" on the 24. Cooling the external Hitachi (or the enclosure) would reduce that load and would result in a lower temp on the HR itself. I've used large industrial fans to cool down motors and reduce the "load", thereby allowing the thermal protection in the motor starters to allow the motors to run.

    I would! I was surprised that the 21s defaulted to 77 degrees every time I put an external HDD on one. The 20-700s continue to give the temp readings with an external on as do the 24-500s. I'd love to see the external's temp measured.

    Well, perhaps the 24s are the first to do this. But if they are, it's strange that my 24 is so close to the internal's temp with or without the external hooked up. This leads me to believe that the 24s act just as the previous models did/do.

    Rich
     
  20. Rich

    Rich DBSTalk Club DBSTalk Club

    27,269
    554
    Feb 22, 2007
    Piscataway, NJ
    I almost bought one. The prices were much less than WD's. But then I started searching posts for "Hitachi" and several times I saw them referred to as "Deathstars". That kinda turned me off. :)

    Rich
     

Share This Page