Temperature of Bolt

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

  1. Mahty

    Mahty Member

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    Jan 6, 2006
    Yes, that is where I placed the AC Infinity fan. (Actually, AC Infinity calls this particular unit a blower — drawing air in along the axis of rotation and blowing it out to the side in a direction perpendicular to that axis of rotation.) I could be wrong, but I read that the stock fan in the TiVo Bolt blows air OUT of the TiVo. If not, I’ll probably experiment further. And yes, I am using one of the Bolt’s USB ports to power the fan (blower).

    Of course, in this configuration the internal hard drive is no longer sitting horizontally, but I’ll worry about that later if I hear/read that this could affect the longevity of the drive.
     
    Last edited: Sep 20, 2018
  2. V7Goose

    V7Goose OTA ONLY and Loving It!

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    New Mexico...
    The internal fan does blow air out. I suspect that one of the reasons the stock box does not seem to cool very well is that this warm are is blown down into the hump cavity in the middle of this ugly box, and much of the air that gets sucked in through the tiny and limited intake holes around the edges of the box is probably this pre-heated air.

    I have seen a few instances where the factory specs of some drives actually stated that it must be mounted horizontally. The first time I saw that, I was quite surprised, so I started checking the specs on just about every drive I looked at, and the vast majority of them state they are suitable for installation in any position. But I still try to keep them either perfectly level or vertical, just for whatever benefit it might provide.

    I am sure that sitting the Bolt on top of this fan would provide the maximum airflow, but I did not want to do that because it just makes an ugly box even uglier! And besides, I have found that the cooling I get from just putting it on the shelf near the left rear corner and having the air sweep across the back provides all the extra cooling I need. I think that the air flow sweeps away all that warm air from the internal fan along with more heat from cooling the tuner area. With this fan, the coax connector went from being VERY hot all the time to not warm at all!
     
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  3. V7Goose

    V7Goose OTA ONLY and Loving It!

    1,600
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    May 28, 2005
    New Mexico...
    Just a new data point for y'all - I tested my Bolt with this fan and WITHOUT any bottle caps or other risers on the corners, and it seems to be actually COOLER now.

    The bolt is just sitting on top of my old S3 in totally stock form, with this blower at the left rear of the box, and the air stream slightly angled to sweep the back of the Bolt. The blower is on low, and I can feel a definite stream of air blowing out from under the Bolt at the front of the box on the right side.

    After a full day like this, the ODT is 53, and there is virtually no detectable heat on either the top of the Bolt in any location, including the coax connector which is usually very hot.

    I just noticed that the links to this blower seem to be gone from earlier posts. Here is the exact $16 blower I purchased from Amazon:
    https://www.amazon.com/gp/product/B012CL2V3I/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
     
    Last edited: Sep 22, 2018
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  4. Tony_T

    Tony_T Well-Known Member

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    Nov 2, 2017
    What's your power source?
    Can the Tivo USB port power the fan?
     
  5. V7Goose

    V7Goose OTA ONLY and Loving It!

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    May 28, 2005
    New Mexico...
    Yes, the TiVo USB port powers one just fine, as would the USB port on any other equipment close by (such as a DVD player or TV). Since the TiVo stays on 24x7, I would make sure that any USB port you use also stays powered 24x7.
     
  6. ohboy710

    ohboy710 Member

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    Jun 30, 2008
    Yes I just powered it from the back of the Tivo usb ports.
     
  7. JSearfoss

    JSearfoss Member

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    5
    Nov 16, 2008
    Wellsboro, PA
    Being that this looked so easy and I do not want to cut holes in my case I though I would try this. I purchased the AC Infinity Multifan S2. I have it set on low laying flat behind the right back corner pointing at about the middle of the Bolt. I also have the Bolt sitting on some bottle caps so there is about a 1" space under it. My temps went from 68 to 57. When all tuners are recording it goes to 59. I have not seen a 60 since turning the fan on a week ago.
     
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  8. vstone

    vstone Active Member

    1,250
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    May 11, 2002
    Martinsville...
    Elevated Bolt+, ODT dropped from 58 to 51.

    Set Bolt+ on top of AC infinity 140mm fan. ODT drops to 48.

    Still get V87 disconnect error.

    #%^+$&
     
  9. cwerdna

    cwerdna Proud Tivolutionary

    14,107
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    Feb 22, 2001
    SF Bay Area, CA
    I recently ordered an AC Infinity Multifan S2 to do the same thing. I also ordered their Multifan S4 to place under the right side, blowing up into the TiVo via the CableCard area.

    Unfortunately, it looks like it's going to take awhile for Amazon to ship the items + other stuff to me.

    This will replace my using various laptop cooling pads containing fans.
     
  10. cwerdna

    cwerdna Proud Tivolutionary

    14,107
    730
    Feb 22, 2001
    SF Bay Area, CA
    The fans finally arrived yesterday. I'm not a Prime member and chose the cheapest shipping. Package arrived late so even though I ordered May 6, they didn't arrive until the 26th. Original ETA was the 22nd.

    I'm doing as I mentioned. IIRC, I saw ODT of 48 C (118.4 F). Both fans are on high. It's quite hot in my living room (~83 F) due to the heat wave here. It hit almost 100 F outside today.

    The Multifan S4 is quite large and is big enough to hold up the Bolt w/o any additional support for the other side. Both fans (+ wiring and speed controller) feel like quality products.

    I'm powering them via an Apple 5 watt USB AC adapter. IIRC, if you use the TiVo's USB port, that tends to raise the TiVo's internal temp a bit.
     
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  11. dfwkootz2020

    dfwkootz2020 New Member

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    May 25, 2020
    I just placed my Bolt OTA on its side with the exhaust fan at the top, it's running consistently at 57 C. The body is barely warm to the touch. When it was horizontal it got really hot. Easy fix if you have room to place it vertical, the exhaust rises so not sucked back into the unit.
     
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  12. jlb

    jlb Go Pats!

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    Dec 13, 2001
    Burlington, VT
    I have mine on risers and a fan blowing across the back half of the unit. With the god awful heat it's at about 59. When we are much more moderate in temps, it will be usually around 50 for me.
     
  13. tivoboy

    tivoboy Member

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    Jan 14, 2002
    SFO
    What is the best placement for fans? Is it undernearth blowing up and into the cable card slot, or in the back, pulling air OUT or IN?
     
  14. aaronwt

    aaronwt UHD Addict

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    Northern...
    I have my Bolts on a wire shelf. That along with replacing the internal fan a few years ago, keeps the temperature down in both of my Bolts.
     
  15. UCLABB

    UCLABB Well-Known Member

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    Riverside, CA
    Underneath the vent on the bottom, pulling air down which complements the internal fan.
     
  16. Mikeguy

    Mikeguy Well-Known Member

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    I have my Bolt box on a cooling fan pad that blows air up onto the Bolt box. The cooling pad has 2 fans, neither of which blows onto the Bolt box's fan, and it has been fine.
     
  17. tivoboy

    tivoboy Member

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    Jan 14, 2002
    SFO
    So, we have one that says blow IN and one that says blow OUT.. hmm.
     
  18. Mikeguy

    Mikeguy Well-Known Member

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    Jul 28, 2005
    No, I referenced blowing up onto it just because that's what my laptop cooling pad does (it doesn't give me an option to reverse the fans' blowing direction); and the fans on my laptop cooling pad are positioned such that they don't blow onto the Bolt box's fan such as to disrupt that fan's operation. It seems to be doing fine, lowering the Bolt box's temp. considerably.
     
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  19. tivoboy

    tivoboy Member

    739
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    Jan 14, 2002
    SFO
    So, I put in one of these in the last couple days

    https://www.amazon.com/gp/product/B07TMBSN4G/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

    Turning it so it pulls from the Bolt OUT and blows outwardl, on the low setting it takes the bolt from 60 to 51.. quickly. So that is a positive. I’ll try higher settings (med, high) to see if it lowers it more.

    My concern to blow IN was that there is often a bit of dust that collects over time in the cabinet and if I don’t clean it often enough, MAYBE I would introduce more debris INTO the bolt that normal. Unsure.

    Still can’t decide if more air IN from the bottom is better than pulling air OUT from the bottom. But at the moment, at or under 50 with the ambient temp in the room at 86 F or 30 C is probably good.

    I’ve seen this unit as high as 64-67 on very hot days, I have tried to create more ventilation but when it’s really hot I can’t get it under 61/62 without possibly this fan.
     
  20. jlb

    jlb Go Pats!

    9,038
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    Dec 13, 2001
    Burlington, VT
    This is what I do. I am sure I could lower temp even further with a slightly different placement but I am limited on space.....This seems to work well...

    [​IMG]
     

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