【 Weak current College 】 how to distinguish memory stick

Kingston: the new "digital anti-counterfeiting label gravure", with RMB anti-counterfeiting technology of which two, namely "gravure anti-counterfeiting" and "texture anti-counterfeiting", to enhance the ability of product security, the most advanced anti-counterfeiting technology is used for memory, the simplest way to identify genuine and fake identification. Bump version of anti-counterfeiting technology is RMB notes on the use of unique printing technology, user printing patterns by touch has clear feel. New "nano-refraction" anti-counterfeiting label's greatest benefit is not required any third-party Evaluator tool, do not telephone not SMS, just by the user visually, you can immediately and accurately first time discriminating the authenticity of Kingston products. "Nano-refraction" anti-counterfeiting label uses the industry-unique nano glass refraction of light, in a different light angle display different text and pictorial, some similar traditional laser holographic anti-counterfeiting label. But unlike traditional laser label, "nano-refraction" label may not be forged.

Samsung: 1. the product label: the model of the Samsung gold label on memory products from first and second particle position, white special paper stickers, cannot easily complete mortgage, the printed product model number, capacity, operating frequency.

2. anti-counterfeiting label: Samsung's anti-counterfeiting label is located on the gold memory products right from the second particle position, Golden laser labels bear the "Samsung gold bullion" LOGO.

3. chip luster: original factory of Samsung memory---Samsung gold chip surface is generally very sensible, either glossy or fluorescence, either after Matt.

4. see PCB: Samsung gold bars of the PCB surface should be clean, color gray, component welded neat, uniform and shiny solder joints and edges without burrs, also bear the LOGO of the "Samsung".

5. shiny gold finger: Samsung gold bars of gold finger to light, there can be white or black and white is the poor quality of the performance of the coating, blackening is a result of wear and oxidation.

6. original Samsung gold bars using transparent big box packaging, packaging in Samsung gold bullion manual and the first launch of the electronic warranty card! but poor Samsung memory is not!

Of course, there are just as indispensable is 800 telephone, old, don't bother, generally sell fake products, will use a variety of business reasons to not let you play there in his 800 telephone, some careless user convenience in their trap.

Modern: the first really modern memory stick sticker is the original labels and false is ordinary stickers; really modern memory chip in the entire circuit is arranged on a gapless, false if there are noticeable interval; really modern memory chip can be seen from the back, a circular Groove of the back of the modern memory chips are three straight arrangement circular marker. Really really modern memory chip chips in the lower left corner has a circular Groove, corner also has a slightly darker printing, the characteristics of the fake chip. Really modern memory chip legible, but false memory chip handwriting edge is not clear that there's a glitch. Buy sell only careful observation, it should be able to tell.
Memory diagnostic procedures

1. read the memory

? Channel bad

A spring contact bad): oxidation, stretch out, open circuit

B) slot short-circuit Burnout: two-pin shorted, damage

Memory-related lines:? one Groove short; supply; clock; ranks gated; line with open-circuit; cable; address line; the line of control; North Bridge bad (most and North Bridge line)

2. digital jump is incomplete

C0-C1-C3-C5 (no C3 and C5, the associated line has problems)

3. the amount of memory errors

Bad memory?

Contact not good?

Slot and North Bridge between buildings line has a problem

4. after missing characters into the system: memory bad

5. Enter the system panic: memory bad

6.AGP Groove short — to North Bridge, memory

7.BIOS wrong or information lost

? Virus infection

The? upgrade failed

Power supply is wrong?

Note: the clock IC sometimes cause read memory

Different diagnostic card motherboard go number will be different, common has the following 3 ways:

1：00—C0—C1—C3—0b—0d—3d—42—6F—7F—FF

2：FF—C1—1d—2b—3d—42—6F—7F—FF

3：FF—d3—d4—0b—2A—31—3d—4E