Dell Inspiron 15 7559 Laptop, RAM voltage

Sep 13, 2017
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well the current 8 gb ram on this laptop is running at 1.35 V. Now i just opened my old asus laptop and found a 4gb DDR3 RAM, i took it out and added it to this laptop. however after adding it, I opened CPU-Z and it shows that the 8gb is running at 1.35 V and 4gb is running at 1.5 V. Is this going to be a problem or not? thank you please help

These are the specs:

Intel i7-6700HQ Quad-core (2.6GHz) CPU
8GB (1x 8GB) 1600MHz DDR3L Memory
1TB Hybrid Drive (w/ SSD Cache)
15.6" 1920x1080 LED Display
NVIDIA GeForce GTX 960M w/ 4GB GDDR5
Wi-Fi 802.11ac + Bluetooth 4.0
Ports:
3x USB 3.0
1x HDMI v1.4a w/ 4K support
6-Cell 74 WHr Battery
Windows 10 Home 64-Bit