I built this pc on my own, it successfully boot up before and my monitor can get signal. However, today when i open it up (I haven't touch this pc for about a week) the monitor stayed black screen and can't get any signal. The last thing I touch in this pc is the RAM sticks, I tried boot up with one stick only but it didn't work. Since I'm new to pc, I don't know what else could cause the problem.
my pc spec:
CPU: AMD Ryzen 7 1700X Processor (YD170XBCAEWOF)
Motherboard:: ASUS Prime X370-Pro AMD Ryzen AM4 DDR4 DP HDMI M.2 USB 3.1 ATX X370 Motherboard with AURA Sync RGB Lighting
Ram: Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 3200MHz C16 Desktop Memory Kit - Black (CMK16GX4M2B3200C16)
SSD/HDD: Samsung 850 EVO 500GB 2.5-Inch SATA III Internal SSD (MZ-75E500B/AM) and WD 1 tb
GPU:EVGA GeForce GTX 1050 Ti SC GAMING, 4GB GDDR5, DX12 OSD Support (PXOC) Graphics Card 04G-P4-6253-KR
PSU:EVGA SuperNOVA 850 G2, 80+ GOLD 850W, Fully Modular
Chassis: The case already have the case fan.
OS:Microsoft Windows 10 Pro (64-bit, OEM DVD)
Case :Corsair Obsidian Series 750D Airflow Edition, Full Tower ATX Case
my pc spec:
CPU: AMD Ryzen 7 1700X Processor (YD170XBCAEWOF)
Motherboard:: ASUS Prime X370-Pro AMD Ryzen AM4 DDR4 DP HDMI M.2 USB 3.1 ATX X370 Motherboard with AURA Sync RGB Lighting
Ram: Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 3200MHz C16 Desktop Memory Kit - Black (CMK16GX4M2B3200C16)
SSD/HDD: Samsung 850 EVO 500GB 2.5-Inch SATA III Internal SSD (MZ-75E500B/AM) and WD 1 tb
GPU:EVGA GeForce GTX 1050 Ti SC GAMING, 4GB GDDR5, DX12 OSD Support (PXOC) Graphics Card 04G-P4-6253-KR
PSU:EVGA SuperNOVA 850 G2, 80+ GOLD 850W, Fully Modular
Chassis: The case already have the case fan.
OS:Microsoft Windows 10 Pro (64-bit, OEM DVD)
Case :Corsair Obsidian Series 750D Airflow Edition, Full Tower ATX Case