surface pro 4 ram update fail

[jason0503]

A surface pro 4 4GB RAM . I swapped four 1GB Samsung memory chips for four 2GB Hynix memory chips （H9CCNNNBLTAL ARNTD）.and move two resistor :R2318 to R2317 R2312to R2320
add four resistor :R1602、R1604、R1702、R1704

Then the computer can boot normally but still recognize 4GB . somebody tell me something wrong in the Schematics

[ahmypc]

Re: surface pro 4 ram update fail

Normally you don't need to do anything else. Could the ram chips have failed during the change? I've done this many times. I just make the changes you wrote.

[jason0503]

Re: surface pro 4 ram update fail

Normally you don't need to do anything else. Could the ram chips have failed during the change? I've done this many times. I just make the changes you wrote.

But the chip's broken, and it won't turn on, will it?

[ahmypc]

Re: surface pro 4 ram update fail

If too much heat is given during replacement, the chip may fail.
It has four ddr slots. Slots 1-3 and 2-4 work together. If one of these spouses is completely broken, half capacity may appear.
If the ram does not completely fail, it may give a blue screen error.

[jason0503]

Re: surface pro 4 ram update fail

If too much heat is given during replacement, the chip may fail.
It has four ddr slots. Slots 1-3 and 2-4 work together. If one of these spouses is completely broken, half capacity may appear.
If the ram does not completely fail, it may give a blue screen error.

there is not a blue screen error ,it can boot into OS normally

[ahmypc]

Re: surface pro 4 ram update fail

Did you solve your problem?