ASROCK B450M-HDV R4.0 and Summit Ridge CPU

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   It looks like you have a memory incompatibility problem.  This system board is designed around non-ECC, unbuffered memory.  I, and many people here, have had great success with GSkill Flare X; however, there are numerous brands and models on the three memory QVL lists for this system board.

Jake

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jdillipl Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 03 Aug 2017 Location: USA Status: Offline Points: 269	Post Options Post Reply Quote jdillipl Report Post Thanks(0) Quote Reply Topic: ASROCK B450M-HDV R4.0 and Summit Ridge CPU Posted: 16 Jan 2020 at 1:04am
	It looks like you have a memory incompatibility problem. This system board is designed around non-ECC, unbuffered memory. I, and many people here, have had great success with GSkill Flare X; however, there are numerous brands and models on the three memory QVL lists for this system board. Jake
	Asrock X370 Killer SLI/ac, Amd Ryzen 7 5700X, GSkill Flare X F4-2400C16D-32GFX, RaidMax Thunder V2 735W PS

CliffClavin Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 15 Jan 2020 Status: Offline Points: 3	Post Options Post Reply Quote CliffClavin Report Post Thanks(0) Quote Reply Posted: 15 Jan 2020 at 3:52am
	Hello everybody, my freshly built PC shows no signal on the screen. When I turn it on, the fans start spinning (normal speed, no full speed), but nothing else happens. The swapping of memory, power-supply and graphics card changed nothing. Also the replacement mainboard did not help. The strange thing: Even without memory or without graphics card, the behavior is the same. Not even a beep from the buzzer. I asked the same question in another forum. They suggested a problem with the UEFI version. The sticker on my mainboard says 3.20. And on their [URL=https://www.asrock.com/MB/AMD/B450M-HDV%20R4.0/index.asp#BIOS]website[/URL] Asrocks states: "ASRock do NOT recommend updating this BIOS if Pinnacle, Raven, Summit or Bristol Ridge CPU is being used on your system." So I have two Questions: 1. Could an too new UEFI version cause the described behavior? 2. Is there a way to downgrade to an older UEFI version? (without a new CPU) Configuration: Mainboard: ASROCK B450M-HDV R4.0 (now the 2nd) CPU: AMD Ryzen 3 1200 (boxed) Graphics Card: PNY GeForce GTX 970 4096 MB GDDR5 (alternative: Gigabyte GeForce GTX 1060 OC WindForce 2X, 6144 MB GDDR5) Memory: 1xKINGSTON Server Premier - KSM29RS8/8HCI - 8GB 2933MHZ (alternative: 2x Micron 8GB 1Rx4 PC4-2133P-R / PC4-17000R DDR4 Registered Server-RAM Module REG ECC - MTA18ASF1G72PZ-2G1A2KJ) Power-supply: Be quiet! Pure Power 11 400 W CM (alternative: be quiet! 350 Watt Pure Power L8 Non-Modular 80+ Bronze) CliffClavin