In message <53a6485c92jcgl@xxxxxxxxxxxxxxx> > So maybe the rear sockets in particular are > very fussy/variable in some way. Or maybe this is a 'feature' of the USB > driving by the OS? I've never had any such issues with our logitech peripherals (keyboard/ mouse and wireless combo set). We recommend logitech wireless set because it only uses one USB port. Never an issue. When building, I always attach peripherals to the rear. However, some machines may fail to start due to not getting enough power internally. Usually unplugging/reconnecting the molex power lead inside and/or reseating the power connection to the internal USB hub solves this. Transit can cause this to become loose. For example, I have just done such a repair - as supplied to me, the board would light up, but never boot (you'd see the lights flash off and back on, as if constantly rebooting). After removing the unnecessary fan connection, and reconnecting the cables, the last 10 boots have been perfect (also updated OS). Note that latest OS build, power management ensures that active cooling isn't needed, so the fan is not necessary unless you plan on overclocking. Andrew -- R-Comp 22 Robert Moffat, High Legh, Knutsford, Cheshire WA16 6PS Tel: 01925 755043 Fax: 01925 757377 http://www.rcomp.co.uk --- To alter your preferences or leave the group, visit //www.freelists.org/list/armini-support List-related queries to info@xxxxxxxxxxxx