Re: [gentoo-user] Kernel2.6.33: ATA failed command: READ FPDMA QUEUED, hard resetting link

[Stroller <stroller@stellar.eclipse.co.uk>]

On 26 Mar 2010, at 22:21, Paul Hartman wrote:
> ...
> Well,  I was thinking more about something like alteriong IOH/ICH
> voltage, or whichever voltage powers the SATA controllers. It has 12
> SATA headers on this motherboard but I don't know how much it can
> realistically handle at once. Hopefully all of my disks. :)

Honestly, I'm not sure that I'd do that.

If I thought it was a power issue - and that seems quite a reasonable  
possibility - I would replace the PSU first.

What PSU are you using at the moment? Brand / wattage?

I think these are probably overkill:

http://www.bluepoint.net/AKAPSU066
http://www.bluepoint.net/AKAPSU071

However, if you're using a 450W PSU at the moment, you can get an OCZ  
branded 600W for less than £50. I tend to be suspicious of cheap  
unbranded and Wong Fu 350W - 450W PSUs. Often a 350W PSU from a  
manufacturer with a half-decent brand (eg Trust) will be better than a  
no-name 450W PSU.

It seems important not only the actual wattage that the PSU gives out  
(measured with an analogue-needle multimeter) but also how stable that  
voltage is, how smooth, consistent and reliable it is. Unless your PSU  
is absolute top-notch quality, try to under-utilise it.

With 6 x hard-drives, I would be generous with supplying power - I  
think a 600W PSU would easily be justified.

Stroller.