DDR4 Testing program main include:512x8sorting 512x16sorting  1GX8sorting 1Gx16sorting memtest 

ddr4 do not root memory module repair, memory chip testing, it is not setup for matherbord, test program is run to test interface,powerfull function.

Operating instructions ,at first, through the test card does not turn on the memory chip to find out, the test card will show the wrong code, from the wrong code to identify the corresponding bad chip,
Second: can run memtest test software, some of the poor stability of the chip to find out

Real time DC Test (Walk Data, Address) testing
Real time AC-Functional test
Open/Sort check
VTT Resistor check 
Series Resistor check
Clock Resistor check
Control pin open short check

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