Reballing And A Regular Hand Makes A Raspberry Pi 800

The all-in-one Raspberry Pi 400 laptop is a succesful gadget, however these searching for its most energy could also be disillusioned by its 4 GB of reminiscence. When the Pi 4 and Compute Module 4 have double that determine, absolutely the Pi 400 may catch up! A reddit consumer known as [Pi800] rose to the problem by replacing the 4 GB chip from the Pi 400 with the 8 GB chip from a Pi Compute Module, ensuing within the so-called Pi 800, a working 8 GB all-in-one Pi.

As a chunk of labor it’s a deceptively simple but extraordinarily fiddly piece of soldering that requires a gradual hand for even essentially the most expert of solderers. What takes it past the norm although is the reballing course of. A ball-grid-array chip has a grid of small balls of solder on its underside that make the contacts, and these soften when it's soldered so require alternative earlier than transforming. That is usually completed with a template of rigorously aligned holes to line up balls of solder in a stream of sizzling air, however missing the template on this case the job was completed by hand, laboriously ball by ball. A soldering job we’d hesitate to tackle ourselves, so we’re impressed.

The result's an 8 GB all-in-one Pi, and it’s truthfully not past the realms of risk that an official model of this mod might be a future Raspberry Pi product. Maybe we’ll anticipate that, however do you have to be impatient then no less than it’s doable to roll your individual. It’s definitely not the first BGA memory swap we’ve brought you.

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