computer motherboard memory stick test found that there is a problem, some memory sticks can be inserted in different slots, and some cannot be turned on! What's going on, the owner of Wolongzhuang will analyze the reason for you. Help to find what is the problem? The owner of
looked at this DDR4 test at 2133M. There are four slots in total, and the 2, 3, and 4 slot tests are no problem. 50% of the 1 slot tests fail to boot. This has to be simulated, according to the computer motherboard model to simulate. The
1 slot waveform does have a problem, at the critical point. The waveform has a ring, which appears on the boundary of the upper and lower horizontal lines of the effective high and low levels. It indicates that there is a problem with the impedance matching, and the reflection generated is more than expected. No wonder sometimes good and sometimes bad. The ringing margins of 2, 3, and 4 are OK, not within the effective high and low levels and the lower horizontal line. What happened to
? There is a problem with slot 1, but slot 2, 3, and 4 are fine. The owner of Wolong Villa later found out and noticed a problem. The memory stick is in the form of a daisy chain, and the four slots are strung together. When slot 1 is running, slots 2, 3, and 4 are empty. The lines connected to slots 2, 3, and 4 are empty, which is equivalent to a very long STUB. This is problematic for the 2133M frequency. So the above question arises
, who bears the blame? Is it the problem of the computer motherboard manufacturer, or the problem of the memory stick. To put it bluntly, both sides have problems, they just haven't cooperated well. However, it is impossible for the motherboard manufacturer to change it. There is no problem with other memory sticks plugged in, why do you have a problem with this. It must be a problem with your memory stick.
There is no other way, only the memory module can be changed, because the wiring of the memory module is too long. Caused STUB to have more impact than expected.Try to shorten the length of the memory module signal lines to meet the requirements. This can only be done through simulation to match the computer motherboard.
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