From 16049cb82c0bc7fab2e7d9a35dd58c427f50cc36 Mon Sep 17 00:00:00 2001 From: Francis Rowe Date: Sat, 16 May 2015 08:41:07 -0400 Subject: docs/install/bbb_setup.html: Warn user not to use the 5V ATX pins --- (limited to 'docs/install/bbb_setup.html') diff --git a/docs/install/bbb_setup.html b/docs/install/bbb_setup.html index dacd254..4ca3dc2 100644 --- a/docs/install/bbb_setup.html +++ b/docs/install/bbb_setup.html @@ -103,7 +103,11 @@ power on the PSU.

- On newer 24-pin ATX PSUs, there is an additional 3.3V (orange) on pin 12. + DO **NOT** use pin 4, 6, do **NOT** use pin 19 or 20 (on a 20-pin ATX PSU), and + DO **NOT** use pin 21, 22 or 23 (on a 24-pin ATX PSU). These are 5V, and they **WILL** + kill your flash chip. ***NEVER*** supply more than 3.3V to your flash chip. + (that is, if it's a 3.3V flash chip. 5V and 1.8V SPI flash chips do exist, but they are rare. always + check what voltage your chip takes. most take 3.3V)

You only need one 3.3V supply and one ground for the flash chip, after grounding PS_ON#. -- cgit v0.9.1