Reddit mentions of Makerfire Raspberry Pi B+ Case Protective Case Enclosure Box with Mini Cooling Fan Heatsink Kit

I ordered this case off of Amazon that came with a fan and a few heat sinks for about $11. However, you can also buy this fan for about $8.

This video helped me see exactly what GPIO pin the red wire needed to be connected to (the fan only takes up two pins).

Do you have a fan or AC vent you could set it next to for a more immediate fix? Good luck!

The only time I had a heat problem was when I had my Pi 3 scraping games inside a closed secondary enclosure with a battery discharging, converting 12v to 5v, and a screen running. Normally, it takes a hot environment or extra heat sources to jack up the temps. Otherwise, ambient can dissipate enough heat not to worry.

I'd wait until your Pi actually starts complaining about temps, unless you're planning on overclocking from the get go. I've switched to a heat sink and fan case (from official case) for extra dissipation for my application, but Pi's are designed to NOT need extra cooling considerations.

Makerfire Raspberry Pi B+ Case Protective Case Enclosure Box with Mini Cooling Fan Heatsink Kit https://www.amazon.com/dp/B019SIAGTO/ref=cm_sw_r_cp_api_mNdjzbCFWH1N4

Yeah. Those tiny little heat sinks don't do much (since they're so small, they "fill up" with heat pretty quickly. And if you have no fan to dissipate that heat, they become useless at that point). They're more of a comfort blanket than anything. But for normal use, heat isn't an issue. (Even when overclocking).

If you ever get Kodi and notice the yellow square on screen, you might want to try a fan case. This is the one I'm using. It's pretty cheap, and the fan is pretty quiet (https://www.amazon.com/gp/product/B019SIAGTO)

That is a nice case, but as for the on/off switch I heard they pull down the amps. You need 2.5A for that sort of clock/performance.

I've got this one and it's been great so far. https://www.amazon.com/gp/product/B019SIAGTO/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1

i just got this case with heatsinks/fan...pretty good price for what you get

https://www.amazon.com/gp/product/B019SIAGTO/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

Makerfire Raspberry Pi B+ Case Protective Case Enclosure Box with Mini Cooling Fan Heatsink Kit https://www.amazon.com/dp/B019SIAGTO/ref=cm_sw_r_cp_apa_wniazbVFTYA5X

The fan I'm using now will either get switched out or I'll modify the case to use the bigger fan.

Just want to throw another case option out there. I've been using this one:
https://www.amazon.com/Makerfire-Raspberry-Protective-Enclosure-Heatsink/dp/B019SIAGTO/ref=sr_1_6?ie=UTF8&qid=1509558556&sr=8-6&keywords=pi+fan+case&dpID=4112TLfelrL&preST=_SY300_QL70_&dpSrc=srch

The included heatsinks work well with the fan, I've had zero cases of throttling or stutters even when overclocked. The only potential downside I found with the case is that the plastic is fairly soft and can scratch easily, but this was a positive for me because I needed to cut some holes for a power switch and auxiliary power input.

I would never recommend a RetroPie build without heatsinks and a fan. Emulation just requires a lot of power as a general rule, and a lot of Pi cases don't account for that, as if they were built for intermittent use like in IoT applications.