Re: LSI MegaRAID SAS 9240-4i hangs system at boot
On Mon, 21 May 2012, Ramon Hofer wrote:
> On Sun, 20 May 2012 23:35:58 -0300, Henrique de Moraes Holschuh wrote:
> >> Thanks for the suggestion, Henrique!
> >> The PSU is a 750 W so I think it should be enough for now.
> >
> > Yes, it is probably enough. You have to do a lot to overpower a *good*
> > 750W PSU (a crappy one, OTOH...).
> >
> > You should still do all testing with the minimal hardware setup. From
> > experience, you also need to be able to test using no keyboard or a
> > different keyboard (and mouse)... USB is supposed to be safe from this
> > crap as it can detect overcurrent, but since it IS detecting overcurrent
> > in your case (be it a faulty alarm or not)...
>
> The PSU is a Thermaltake. I have two PSUs with less power. Maybe I should
> try it with one of them?
Well, it is worth a try, Thermaltake are usually good PSUs, but still...
> I will try this evening with a old ps2 keyboard. But it would surprise me
Please make sure to not hotplug a PS2 device (mice/keyboards), they're
cold-plug only. Some motherboards and devices tolerate hotplugging, but it
is not safe to do so unless you're explicilty told in documentation of both
devices that hotplugging is supported.
> if this is the source of the problem because the usb transmitter for the
> keyboard / mouse is used in another computer without problems and the
> over-current messages are always related to port 7 and 8. Using a
> different usb port makes no difference...
Yes, it's unlikely. But you have already exausted all likely reasons,
anyway...
--
"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
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