Question Cooling recommendations

Discussion in 'Nintendo 64' started by GC64, Jan 4, 2017.

  1. GC64 .

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    What do people recommend for cooling the n64? I've seen people use copper plates over the chips along with a fan, but can't I just use the heatsinks they came with? I planned to just use the thick aluminum heatsinks provided along with a small 30mm fan run off of the 7805. Is this set up good enough to entirely cool the system?
     
  2. Noah The Manager Staff Member . . .

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    As long as you've got a decent amount of vents for airflow and decent heatsinks you don't need a fan. The N64 doesn't get hot enough to warrant a fan unless you're putting it in a tight space.
     
  3. GC64 .

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    Will the original 3 heatsinks that came with it work?
     
  4. Beta .

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    The aluminum blocks alone won't give you meaningful cooling unless they are coupled to a heatsink like in the N64. You need a good conductive path, like copper or aluminum, with lots of surface area. You can achieve that with fins, or just a big sheet. A fan is probably overkill.
     
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  5. ShockSlayer Ivan - the tyranny of evil men . .

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    I have a sheetsink in a portable with little to no vents, and the N64 doesn't crash, but it gets fairly warm by the end of the battery cycle. I maintain that the N64 doesn't need a fan, but your portable might benefit from one.
     
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  6. GC64 .

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    I think what I'll do is get a copper sheet and put it over the three chips, then when the portable is almost done I'll run it dead to see how hot it gets, which will determine if I need a fan.
     
  7. E64 .

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    Im using a copper sheet and using the n64 aluminum sheet ive put the aluminum sheet on top of the copper sheet works pretty good for me :D
     
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  8. Matthew Formally known as Chaos Staff Member . .

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    I used these mini heatsinks superglued to the N64 and I've never had a problem. Unless you've crammed your N64 in a tight space with almost zero ventilation then it's very unlikely that you will need a fan.
     
  9. E64 .

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    Dont forget about getting some thermal paste
     
  10. Matthew Formally known as Chaos Staff Member . .

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    E64 makes a good point. The heat sinks I recommended came with some thermal compound on them already which is really convenient but it won't hurt to add some thermal paste.
     
  11. fibbef Wizardry V Completer .

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    When I bought mini heat sinks years ago for my 64, they had adhesive on the bottom so I could stick them wherever they needed to go. I was iffy about that because I didn't know how well it would conduct heat, so I scraped off all the adhesive, cleaned the sinks with rubbing alcohol, and applied my own thermal compound.

    Anyone else run into the stick-on heat sinks? Know if they're as effective as using thermal compound?
     
  12. Matthew Formally known as Chaos Staff Member . .

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    That's the heat sinks I was referring to in my above post. I've been using them for 4+ months with no issues at all.
     
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  13. fibbef Wizardry V Completer .

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    Ok cool. I'll stop wasting my time scraping the adhesive off!
     
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  14. GC64 .

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    Sounds like a great deal! I'm using a zn-45, so if I apply these heatsinks and put a lot of ventilation holes in the case, that'll be the only requirement for cooling I need?
     
  15. Matthew Formally known as Chaos Staff Member . .

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    Yeah it should be. Of course test your set up. I've never worked with a zn-45 before but I believe that you will be okay.
     
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  16. JoJo .

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    This is good to know. I'm planning to use these in combo with a fan, but now I'm reconsidering to save space. Haven't designed my case yet, so it still could be pretty cramped in there.
     
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  17. Miceeno .

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    Here's a copper sheet heat sink I threw together for one of my portables. I wasn't confident in a single piece of copper doing the job so I built a heat sink with "fins" and a larger thermal mass. I used 3 pieces that were the max size for my case, 2 pieces that were only just large enough to cover the CPU/RCP/RAM, and 2 pieces stacked high enough to make contact with the RAM. They were stacked like so:

    Large
    Small
    Large
    Small
    Large
    RAM Spacer
    RAM Spacer

    I soldered/brazed them together with a lot of flux, a lot of solder, and a Wagner heat gun. And then I attached it to the N64 with a thermal paste epoxy/adhesive.

    I have had no problems with this cooling solution but I would recommend building it bigger if you can.

    [​IMG]

    [​IMG]

    [​IMG]
     

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