So in other words, you mean this machine must be junk then. Since it cost less than $500 from Newegg.
Gateway DX4200-09 Phenom X4 9100e(1.8GHz) 4GB DDR2 640GB ATI Radeon HD 3200 Windows Vista Home Premium 64-bit - Retail
Yes:
1) Note the construction of the case, very dull finish on the metal inside and no cross support. This means very cheap metal which will tend to expand and contract a LOT when heated and cooled, this causes the screws in the motherboard etc to loosen causing grounding issues as well as problem with your optical drive alignment.
2) Graphics are on board which uses shared memory, much slower not to mention usually crippled as far as bus width is concerned, and possibly proprietary drivers (knowing Gateway).
3) Minimum expandability, only one PCI slot, and one full PCIE slot available.
4) Note the super-cheap power supply, bet cha $10 if it blows, it takes the MB with it! And only 300watts (of which it MIGHT do 220), hope you don't want to add a nice video card or two more hard drives!
5) If you look real close at the motherboard near the bottom below the installed card you will see two headers which are not finished out, typical of cheap motherboard bought in bulk, those used to be USB headers I will bet that were not finished off to save ten cents which limits your USB ports.
6) It states that the DVD drive supports LabelFlash, this means it is probably a very low end NEC drive.
So yes, I would classify that as junk.
BTW, do you know that the problem capacitor issue affecting most of the big name in PC industry including Dell, Apple and HP? Original issue was related to a stolen formula. (HP had some issue later on with a Japanese manufacturer as well)
It is sad that, one of my gig switch at home was also affected. I had to replace the bad capacitors I took out from a old motherboard. I heard that it also affect some cameras as well. (oops .. I think I am off topic ... sorry

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Actually you are talking about a specific problem they had with certain bad capacitors, I am talking about the general quality of all capacitors. As a rule Japanese caps are far superior to Chinese caps, and add to that you can step up to a motherboard that uses Conductive Polymer Capacitors. CPCs are far superior and last a lot longer.
Don't get me wrong, the machine you listed would be great for the kid's homework, grandma checking her email, etc as long as you realize the lack of durability, short life expectancy and expense of repairs (price a motherboard replacement for that thing, an actual factory replacement, WOW!)
Personally I count on my machine, if it goes down I am in hot water. I also want it to be reasonably fast, I hate waiting. So to me, anything less than say $800 or so is junk, $800-$1200 is inexpensive(good), $1200-$1500 is midrange(better), $1500 and up is higher end(best) (for desktops). Also note that these prices do not include keyboard, mouse, monitor(s), UPS, speakers, etc etc. The prices do include the operating system.
Equate that to lenses: Rokinon/Pheonix=toys(junk), Sigma/Tamron=cheap(good), Nikon/Canon=excellent(better), Zeiss=OMG!(best)
Allan