So I've recently decided to overclock my GPU, an XFX RX 550, not the best I know. Using MSI Afterburner I originally got an overclock of 1400 MHz on core clock and 1700 MHz on the Memory clock. I realized I was bumping both up at the same time until the game crashed, I was using GTA V as the test for the overclock. I thought maybe I could get some more out the memory clock so I reset the core clock and was bumping up the clock on memory by 50 each time. I've come here to write this post because using Heaven Benchmark I got to 1950 MHz on the memory without the bench crashing immediately. This has the slider in MSI Afterburner maxed out. I have set everything to stock for now as I'm afraid to use this memory clock because I do not want to hurt the card or the VRMs at all. This is all without changing voltage by the way, only the power limit is maxed my card will not let me touch the voltage. So, I've come here to seek help of more experienced overclockers. Is this a safe overclock? Someone with the same card did you get the same? Any feedback helps.
PC Specs in case it matters:
CPU: AMD Phenom II X4 965 w/ Stock cooler
GPU: XFX AMD RX 550
RAM: 6 GB DDR2
MOBO: ASUS M4A77D
(Yes I know CPU Bottle Neck and super old. Don't have the money to upgrade at the moment)