<p>I got a new MKS 1.4 controller board and it came with A4988 driver chips.  But I can't figure out which way they install.  I found something saying to match the printing on the back of the chip to that on the board.  But I don't see anything that matches.  Suggestions?</p>

<p><a href="https://i.stack.imgur.com/dQers.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/dQers.jpg" alt="Rear of A4988 breakout board"></a></p>

<p><a href="https://i.stack.imgur.com/RdjAB.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/RdjAB.jpg" alt="Close up of MKS 1.4 A4988 socket"></a></p>

The below image was taken from
their AliExpress shop page
.
Unfortunately, I don't manage to find the datasheet or schematic to give more technical advice.