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About shoemakc

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  1. shoemakc

    Minimum post count please

    Well that's easy....just impliment that same minimum post count in Computing as well; it'd be like a gated online community ;-) -Chris
  2. shoemakc

    most reliable notebook hard drive

    Not to say that they're not good drives, but a number of manufacturers were putting the ill-fated deathstar's in their desktop machines for a while to. I think that unless there's obvious manufacturering problems with one brand over another it has more to do wiith which they can get $3 cheaper in batches of 1000. -Chris
  3. PCP&C :::also:::: makes very quiet power supplies (Silencer Line), and as someone who has used PCP&C, Antec and Seasonic...and while they're all good, I still think PCP&C is a notch above the rest. -Chris
  4. shoemakc

    Computer Engineering

    Now this is certainly a gross simplification, but here's how each might apply to computers: Electrical Engineers - How do we create faster gates? (MOS, BJT...etc) Computer System Engineers - How do we create faster cpu's using those gates? Computer Science - How do we create faster and more useful programs to run on those cpus? Each one builds on the others, and there's quite a lot of overlap between them. I was in a simliar situation to you and I chose the EE route just because it was a better program then the CSE. And of course, even if you get your degree in one thing, you might wind up doing something completely different. -Chris
  5. When it come to UPS' can get absolute steals on ebay. People through out perfectly good UPS equipment all the time on there....and because there's so much of it it goes for nothing. The trick is to get them to ship the UPS (or expansion chasis) without batteries (which are probably dead anyway) yet include all the hardware that came with the batteries (cables, lugs, quick connects, etc). All you need to do then is order new batteries from an electronics distributor (digikey), reuse all the existing cabling and you're all set. A few years ago i put together an APC 2200XL with 3 expansion chasis with 14 all new 20Ah batteries for about $800. -Chris
  6. One thing that you've got keep in mind is that the first thing most devices do (cordless phone, alarm clock, stereo, etc) is rectify the incoming AC into DC and then perhaps add a regulator of some sort to maintain the output at a set voltage over varying input conditions. It doesn't really matter if the device is getting a true sine wave input or step's still going to recify into about the same thing. The only issue I could see is that the step approximation used on most all UPS's is going to introduce a number of harmonics which depending on the quality of the output filtering on the UPS and the susceptibillity of the device may cause a problem. That being said though, most devices that would be susceptible are pretty well regulated and filtered internally; they have to be....even normal line power itself can get pretty dirty. -Chris
  7. shoemakc

    Raid 5, just not worth the money?

    From the linked site: That being said i do recall seeing a hack to enable raid5 on windows pro....but who knows how stable it actually is. Yeah that's a different matter. I wouldn't run it on my only machine either....I still need/prefer windows for a lot of stuff. That being said, since I've moved to linux on the fileserver, it's been a heck of a lot less hastle. Samba really does do a better job then windows. -Chris
  8. shoemakc

    Raid 5, just not worth the money?

    Well, wouldn't you need the server version of Windows for Raid5? That doesn't sound nearly as cheap to me... Also, if you use persistant superblocks (which you should) on linux raid, you should be able to drop the drives in another system with raid support and reassemble the array. -Chris
  9. shoemakc

    laser printers

    Well, if you buy an HP LaserJet III off ebay, the only support you really need to worry about is the desk you place it on :-) Seriously though, my only experience has been with HP. -Chris
  10. shoemakc

    ST3160023A S.M.A.R.T. values plummeted

    Personally, i'd just spend the $20 on a promise u100tx2 controller or something similar with 48bit LBA and not worry about it again. -Chris
  11. shoemakc

    USB 1.0 in practice?

    Yep, that's what i was thinking of. Guess i read that a bit too quickly :-) -Chris
  12. shoemakc

    USB 1.0 in practice?

    Not to nitpick, but the FX chipset predates the TX and VX. -Chris
  13. shoemakc

    LAN cable, home-made

    Could the problem be that you're trying to crimp connectors onto a solid core cable? the RJ-45 crimp on connectors are generally intended for use in making patch cables, which would be using a stranded core cable. Solid core is generally used behind walls and what not as part of the permanent structured cabling system. Stranded core doesn't perform quite as well as solid core, but it's far more flexible making it better suited to short patch cables. -Chris
  14. shoemakc

    Holy power supply Batman!

    FYI, those rated effciencies are generally at 70% load.....where effciency is at it's highest. It's quite possible it'll be lower on a lightly loaded power supply. Doing a bit of googling on power supply effciency indicates that many"experts" out there don't even know the difference between power factor and effciency ie, "Wow, this new PFC power supply is 100% effcient!". Sheesh. -Chris
  15. That depends on the type of battery technology used in the laptop, though I believe all the recent ones are Lithium Ion. Lithium Ion batteries loose a fixed percentage of their capacity each year as they age, regardless of how they're used. On top of that, they benefit from frequent charging and not the deep cycle discharge/charge that's most benficial to NiCads. More Info Here: -Chris