Temperature of Bolt

Discussion in 'TiVo Bolt DVR/Streamer' started by MrDell, Aug 23, 2018.

  1. Jun 27, 2020 #81 of 112
    aaronwt

    aaronwt UHD Addict

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    They look similar to this one. Only I have wheels on mine.
    https://www.amazon.com/gp/product/B07C1CJB8D/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

    All my TiVos, UPSs, and PCs I put on wire shelving like this now. Plus it makes it easier for me to clean since I can easily move them away from the wall. And they come in all shapes and sizes so they can fit inside a closet or smaller spaces.
     
  2. Jun 27, 2020 #82 of 112
    ufo4sale

    ufo4sale Well-Known Member

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    Would the overheating cause a HD to crash? Mine is 68, is that a problem?
     
  3. Jun 28, 2020 #83 of 112
    cwerdna

    cwerdna Proud Tivolutionary

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    It might cause it to fail or fail more quickly.

    An ODT (on-die temp of the (likely Broadcom chip) 68 C is 154.4 F. That's pretty hot.

    With the AC Infinity fans that I have running, I checked earlier tonight and had my ODT down to 42 C which is 107.6 F.
     
  4. Jun 28, 2020 #84 of 112
    DouglasPHill

    DouglasPHill Well-Known Member

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    Attached Files:

    Last edited: Jun 28, 2020
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  5. Jun 28, 2020 #85 of 112
    DeltaOne

    DeltaOne Mount Airy, MD

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    I removed the cable card door and put the fan under the cable card -- blowing up. Then a spacer on the left side to hold the TiVo level.
     
  6. Aug 22, 2020 #86 of 112
    Resist

    Resist Well-Known Member

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    Actually, that Bolt fan vent is an air inlet, not an outlet.
     
  7. Aug 23, 2020 #87 of 112
    cwerdna

    cwerdna Proud Tivolutionary

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    Others have claimed the contrary. I did try to test once w/a piece of paper but the airflow was so weak thru that fan hole, I couldn't tell either way.
     
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  8. Aug 23, 2020 #88 of 112
    V7Goose

    V7Goose OTA ONLY and Loving It!

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    This is not correct - the Bolt fan blows out. And the asinine design of that ugly box is one of the reasons that the Bolt has cooling problems. The only air inlets on the Bolt are under the edges on either side, and the internal fan blows the hot air down into that hump area, angled towards the right side where a lot of it is just sucked right back in from that edge. When that already hot air is pulled back in and over the top of the main board, it cannot cool it very well.

    Putting a small blower at the back corner to blow air across the back of the Bolt and under the hump to get rid of that heated air before it gets sucked back in will TOTALLY salve all the temperature problems with the Bolt.
     
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  9. Aug 23, 2020 #89 of 112
    bklinc

    bklinc Member

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    I went on this forum to check if anyone else has seen "premature failure" (under 5 years) of the Bolts. I recently purchased two at the same time. One of them has failed in warranty and replaced by TiVo with a refurbished Bolt. It is now failing (overheating, shutting down, pixellating, etc.). I won't replace it with a Bolt; waiting for TiVo to make me an offer for a replacement Edge. Other Bolt appears to be failing also. Edge appears to be OK so far, but newer than the Bolts. I understand that old Premiers and Roamios are still working. Doesn't bode well for the Bolts, nor for my favorite DVR company. Won't purchase another TiVo given the history of the Bolts. May have to give up some of the features, but will probably migrate to "cloud DVR's".
     
  10. Aug 23, 2020 #90 of 112
    cwerdna

    cwerdna Proud Tivolutionary

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    ^^^
    And, my Bolt+ that I ordered in April 2017 during their "once in a lifetime" transfer offer and activated around end of April 2017 is still working fine on its stock drive. I've never opened up the unit. It runs 24/7 and I disabled all the power management/saving as I want to it be buffering 24/7 and able to record suggestions.

    Pretty early on, I did take steps to keep it cooler (e.g. via laptop cooling pads w/fans in them). Now I use two AC Infinity fans.
     
  11. Aug 23, 2020 #91 of 112
    um3k

    um3k New Member

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    Just a repost from way up thread, but a buddy of mine with a 3D printer designed a cooling baffle that I’ve been using for about a year now with good results. ODT around 46C with and ambient temp of high 70’s F. Tivo Bolt cooling adapter by cmh
     
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  12. Aug 23, 2020 #92 of 112
    cwerdna

    cwerdna Proud Tivolutionary

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    Which way is that big fan blowing? Is it blow towards the TiVo or to the left, away from the TiVo?
     
  13. Aug 23, 2020 #93 of 112
    Resist

    Resist Well-Known Member

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    You may be correct because now that I think about it when I used a desk fan blowing directly in front of my Bolt, the temperatures dropped drastically. So what I'm going to try is putting my AC Infinity S4 USB Multifan at the rear left corner to blow air across the back and through the bottom gap.

    UPDATE: My S4 fan was under my Bolt's left rear corner blowing up, the temp was 48. Moved it vertical behind the Bolt to blow air across the back and into the gap, the temp jumped up to 52. Moved it under the cable card opening blowing up and it dropped to 51. Moved it back blowing up under the left rear corner and it went up to 52. I'm at a loss on what to do now as the temps are not consistent no matter where I put the fan. Think what I really need to do is cut a hole in the Bolt's top to put the S4, to either suck out the heat or blow air into the case.
     
    Last edited: Aug 28, 2020
  14. Aug 24, 2020 #94 of 112
    um3k

    um3k New Member

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    Like most of us, I had a hard time telling which way the internal fan blows. Ended up treating it as an exhaust and seems to be working well for me.
     
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  15. Aug 25, 2020 #95 of 112
    Resist

    Resist Well-Known Member

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    Is there someplace from Tivo that officially says which way the air flows? I guess I could just take the cover off my bolt and find out.
     
  16. Aug 25, 2020 #96 of 112
    um3k

    um3k New Member

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    I’m reasonably confident after doing a “smoke test” that it’s an exhaust, but as you say, the only way to be sure would be to open it up and observe the markings on the internal fan. I doubt TiVo pits anything out about it officially.
     
  17. Aug 25, 2020 #97 of 112
    cwerdna

    cwerdna Proud Tivolutionary

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    I'm not clear the markings are of any use. Skip to about 3:34 of .
     
  18. Aug 25, 2020 #98 of 112
    um3k

    um3k New Member

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    The markings for airflow and orientation are usually molded into the black plastic of the housing on these computer fans, so not sure that video has enough detail to see them.

    Of course if you’ve got the lid off one could just observe the angle of the blade and which way the fan turns and determine the airflow.
     
  19. Aug 26, 2020 #99 of 112
    DigitalDawn

    DigitalDawn Active Member

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    All you would need is a tissue. Put it against the fan grill to see if it blows out or pulls the air in.
     
  20. tommage1

    tommage1 Well-Known Member

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    There are so many people "worried" about the reported temperature of the Bolt. Because they compare to reported temperature on older model Tivos. Starting with the Bolt the temperature being reported is the CPU (On Die) temperature. Roamio and back reported motherboard temperature, TOTALLY different measurement. Since Bolt is reporting CPU temperature compare to computer CPUs, 60 degrees C under load is no big deal, probably average. When questioned about Bolt temperature "Tivo Ted" said it could run at 90 degrees C all day with no problem.

    Before I learned this I went ahead and put a laptop cooler under my Bolt. Brought ODT/CPU temp down to 50-54 C, was about 60 C. Even though 60 C no big deal according to Ted and comparing to computer CPUs of course I prefer the 50-54 C.

    I'm guessing many "failures" speculated to be temperature problems are actually just drive failures. There could possibly be a way to compare temperature measurements on Bolt and earlier models. Pull drive from Bolt, run diagnostics on drive. I think there is a drive temperature stat. Then pull a drive from a Roamio or Premiere. Run the same diagnostic and compare.
     
    Last edited: Aug 27, 2020

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