How to distinguish second-hand Repair board card _ Hardware Maintenance

Recently small knitting in the computer market, found a lot of second-hand, repair goods or public goods in the market. In particular, the third floor of the Pacific phase and phase two is more of a gathering place for these products. In order to make friends not deceived, small series according to their own experience to provide you with some how to identify second-hand, repair goods and sample goods, after all, small make up their own also useful experience of these items.
Small part of the first statement that if the merchant clearly told you that his hand is second-hand, repair goods or work bags, and the price is appropriate cheap, that is understandable. At this time you need to understand how to reasonably buy second-hand and how to obtain the relevant after-sales service issues, but if you need a new product, and the merchant is cynical to give you the above products, that is this article to discuss the problem. I hope you can really buy the new accessories after reading this article. Below we have a specific look at how to identify the various types of accessories second-hand, repair goods and work bags.
Graphics cards, sound cards and other board products, most of the business because of the need to label, packaging boxes and electrostatic bags can be opened casually, although it is convenient for us to watch the goods, but also convenient for businesses in this area. If we are looking for a product and are sure to buy it, we first need to check their golden finger parts to see if there are any traces of metal rubbing left behind. If any, and whether the rework or second-hand, at least be used, try not to buy.
The motherboard product can observe each slot and jack to see if any traces have been used. In addition, look at the board card of the work of the detailed degree of consistency can also be seen some clues (of course, if the rookie words may not be able to see out). If the individual local solder point craft rough, or leave the solder, then most likely is rework goods. In addition, repair goods (welded) a more obvious place is printed on the PCB above the printing font will be more obvious yellow, such a lot of goods merchants will be cheaper than the market price many sell you, but the quality is difficult to guarantee.
Also need to pay attention to the label of the business, if the board has more than a dozen labels and time difference for some time, it is likely to be second-hand, of course, it is possible that the second label will be hit on the top of the first target cover (this situation may also be the merchant from the second shop to the goods, specifically or to see the goods).
This product you have the right to refuse, you can let the merchant to take another look. It is also possible that individual businesses will be the last label wiped off, but always leave some traces, because the label with a large sticky sticker, not easy to remove. As long as the card side to view the light, if you can see a certain part is not very smooth, not reflective, it is likely because of the label.
Board card type of the work of the goods is more difficult to distinguish, because most of the work bag is the merchant from illegal access to goods, but its quality may not be a problem (like a period of time before the Sparkle Yu 4200-8x, gigabyte R9700 PRO), but the warranty time is shorter (generally one months to three months), But the price is cheaper than the licensed one large.
These work bags to tell the truth is not suitable for the general consumer to buy, because after the warranty period out of the problem really do not know how to do well. It is the hardware enthusiasts who are really good at buying the public purse, because they are looking for performance, and when they are wrapped up in the warranty period they change to something higher.