[kwlug-disc] The sweet(?) smell of power supplies

unsolicited unsolicited at swiz.ca
Mon Apr 7 19:53:01 EDT 2014


For that app, you not only want multiple spinning platters, you want 
multiple platter platforms.

e.g. One RAID for original storage, another for project / in use files, 
another for temporary files. You can't have enough speed or storage in 
these cases. e.g. First will only grow over time. Others will be 
relatively static, if big - presumably you're only actively working on 
one or a few projects at a time.

Nothing says the project or temp drives can't be SSD, though, as 
mentioned. And your performance will be such that you will never want to 
go back.

It may be arguable that you want a check out / in process from SSD to 
alternate though.

I haven't enough experience with SSD to know, but my expectation is that 
even if it goes (can't put more on it), you'll at least be able to read 
it to get it on to another spindle / replacement SSD.

And ... apparently SSD types matter. There's a reason for the serious 
jump in price / SSD tiers. IIRC, the difference is seriously better 
write speeds.


On 14-04-07 11:21 AM, L.D. Paniak wrote:
> OK.  What amount of disk capacity are we talking about? Anything up to
> 1TB can be done today for a reasonable amount of coin on SSD.
> What are the interfaces for specialized hardware?  PCIe? Interface count?
>
> I suspect you can build a remarkably fast system inside of 150W with a
> bit of research.  Intel E3-series v3 Xeons/Haswell CPUs pack a pile of
> performance into 60-80W - at a decent price.  Especially if the software
> uses recent instruction extensions eg AVX.
>
>
> On 04/07/2014 11:09 AM, Darcy Casselman wrote:
>> I'd agree, but she wants to do video and audio rendering.  She needs
>> multiple spinning platter harddrives and some specialist video capture
>> and sound hardware.
>>
>> I was able to talk her down from needing a 750W+ power supply (she
>> doesn't need 3D graphics at all), but yeah, something in the 500W
>> neighbourhood is more reasonable.
>>
>> Darcy.
>>
>>
>> On Mon, Apr 7, 2014 at 10:56 AM, L.D. Paniak
>> <ldpaniak at fourpisolutions.com <mailto:ldpaniak at fourpisolutions.com>>
>> wrote:
>>
>>      I agree.  I have been using pico-PSU/AC brick solutions on systems
>>      up to
>>      100W with great success.  For 95%+ of computing that more than
>>      enough to
>>      get the job done.
>>
>>      There are many "mini-systems" of this type available:
>>      http://www.canadacomputers.com/search_result.php?checkVal0=0&subcat04=5&checkVal1=1&checkVal2=1&checkVal3=1&checkVal4=1&checkVal5=1&checkVal6=1&checkVal7=1&checkVal8=1&checkVal9=1&pagePos=0&keywords=&manu=0&search=1&ccid=1203&cPath=7_1203
>>
>>      Especially good are the Intel NUC series (if a little more expensive).
>>
>>      I recently bought a 430W Corsair ATX PSU and the smell of the fancy
>>      paint finish nearly knocked me off my feet.  It took several days to
>>      dissipate. I am not sure what the motivation is here.
>>
>>
>>      On 04/07/2014 10:44 AM, Jason Locklin wrote:
>>      > Just for fun, this would be approximately the best you can do while
>>      > staying safely under 150Watts and staying reasonably priced:
>>      >
>>      >> PCPartPicker part list: http://ca.pcpartpicker.com/p/3nyKO
>>      >> Price breakdown by merchant:
>>      http://ca.pcpartpicker.com/p/3nyKO/by_merchant/
>>      >> Benchmarks: http://ca.pcpartpicker.com/p/3nyKO/benchmarks/
>>      >>
>>      >> CPU: Intel Core i3-2120T 2.6GHz Dual-Core Processor  ($160.80 @
>>      Amazon Canada)
>>      >> Motherboard: MSI H67MA-E35 (B3) Micro ATX LGA1155 Motherboard
>>       ($88.02 @ Amazon Canada)
>>      >> Memory: Kingston 8GB (1 x 8GB) DDR3-1333 Memory  ($79.99 @
>>      Canada Computers)
>>      >> Storage: Kingston SSDNow V300 Series 240GB 2.5" Solid State
>>      Disk  ($129.99 @ NCIX)
>>      >>
>>      >> Total: $458.80
>>      >> Estimated Wattage: 109W
>>      >>
>>      >> Prices include shipping, taxes, and discounts when available.)
>>      >> (Generated by PCPartPicker 2014-04-07 10:33 EDT-0400)
>>      > That would scream running Linux, but would be lacking for gaming. No
>>      > idea what Windows needs nowadays though. That website is too
>>      much fun.
>>      > Now, back to work... right...
>>      >
>>      > -Jason
>>      >
>>      >
>>      >
>>      >
>>      > On Mon 07 Apr 2014 10:02:49 AM EDT, Darcy Casselman wrote:
>>      >> She has rather formidable power requirements, but we were
>>      talking about
>>      >> whether something like this was available. I'll pass it along.
>>      Thanks.
>>      >>
>>      >> Darcy.
>>      >>
>>      >>
>>      >> On Mon, Apr 7, 2014 at 9:51 AM, Jason Locklin
>>      <locklin.jason at gmail.com <mailto:locklin.jason at gmail.com>>wrote:
>>      >>
>>      >>> Have you thought of building a low-power system with something
>>      like one
>>      >>> of these:
>>      http://www.newegg.ca/Product/Product.aspx?Item=N82E16817104186
>>      >>>
>>      >>> Transformer is sealed in plastic, so no dust/smell from it.
>>      Thinking
>>      >>> about building a system like this with one of the low-power
>>      Haswell
>>      >>> chips and an SSD, myself (not for the smell, I just like
>>      >>> power-efficient, quiet machines).
>>      >>>
>>      >>> -Jason
>>      >>>
>>      >>>
>>      >>> On 14-04-05 03:56 PM, Darcy Casselman wrote:
>>      >>>> PC hardware question, not specific to Linux, but some of you
>>      folks may
>>      >>> have
>>      >>>> ideas.
>>      >>>>
>>      >>>> My partner has some rather significant allergies and
>>      sensitivities.  She
>>      >>>> also needs to replace her 12-year-old desktop computer.
>>      >>>>
>>      >>>> In general electronics tend to be okay for her, but the power
>>      supply
>>      >>> seems
>>      >>>> to be a stumbling block.  New power supplies smell really
>>      bad, triggering
>>      >>>> her sensitivities.  And they're blowing that bad air into her
>>      living
>>      >>> space.
>>      >>>> Does anyone know of a retailer that sells power supplies that
>>      she'd be
>>      >>> able
>>      >>>> to crack open a bunch and give them a sniff-test?
>>      >>>>
>>      >>>> Is there somewhere we can look at used power supplies,
>>      preferably from
>>      >>>> hopefully neutral office environments (rather than, say, the
>>      homes of
>>      >>>> smokers or pet owners)?
>>      >>>>
>>      >>>> We're not entirely sure what it is in the power supplies that is
>>      >>> triggering
>>      >>>> her.  We know that the PVC wiring is bad (I'm not holding out
>>      much hope,
>>      >>>> but if someone knows of a manufacturer that coats their wires in
>>      >>> something
>>      >>>> other than PVC, that would be very useful to know).  But
>>      we've tried a
>>      >>>> bunch and haven't come up with much luck.
>>      >>>>
>>      >>>> Any suggestions would be helpful.
>>      >>>>
>>      >>>> Thanks!
>>      >>>> Darcy.
>>      >>>>
>>      >>>>
>>      >>>>
>>      >>>> _______________________________________________
>>      >>>> kwlug-disc mailing list
>>      >>>> kwlug-disc at kwlug.org <mailto:kwlug-disc at kwlug.org>
>>      >>>> http://kwlug.org/mailman/listinfo/kwlug-disc_kwlug.org
>>      >>>>
>>      >>>
>>      >>> --
>>      >>> -
>>      >>> Jason Locklin
>>      >>> http://artsweb.uwaterloo.ca/~jalockli
>>      <http://artsweb.uwaterloo.ca/%7Ejalockli>
>>      >>> PGP: 9551 BD8F BCCC 5763 9FD9 9C5E 99F2 DE4E 2972 C74D
>>      >>>
>>      >>>
>>      >>> _______________________________________________
>>      >>> kwlug-disc mailing list
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>>      >>> http://kwlug.org/mailman/listinfo/kwlug-disc_kwlug.org
>>      >>>
>>      >>
>>      >>
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>>      >
>>
>>
>>
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