Random no VGA output bios bleep, with no problem displaying image
PC parts:
- Motherboard: ROG STRIX B450-F GAMING (newest 5003 bios) edit: 4901, which was removed after few days (28.01 and 5003 replaced it on 04.02)
- CPU: Ryzen 7 5800X3D
- GPU: Radeon 6950XT Sapphire Nitro+ (connected with 8pin and 8pin + 6pin connectors, using 3 cables could possibly be a fix?)
- RAM: Corsair Vengeance RGB 16GB DDR4 (CMR16GX4M2C3000C15)
- PSU: ThermalTake 650W gold
- NVME drives: Corsair MP 500 and Samsung 970 evo (there's some exchanges like disabling pcie-1 16x for sata 5/6 and other nvme slots shortens one rail)
Problem:
On boot up i get 1 long 3 short beep bios error (no VGA signal), this only happens after pc has been turned off for longer period of time (~6 hours), if i reset pc immediately it won't happen (cooling off or transistors discharging?)
I do get normal display, only things that do happen are that AMD software gets error that something happened on boot at reseted wattman settings (undervolt from 1200mv to 1120mv, lowest until instant crash was 1020mv, everything above 1100mv seems stable) and i have permanent white LED on MB until pc reset
So i recently updated my ryzen 3600 (non-x) and rx 590 to specs written above and i had no problems at this point, around week or 2 later i did change old fans to get better ventilation and i did change 3 thermaltake generic case fans to arctis ones and CPU cooler (silentiumpc fera 3) fan to beQuiet fan, after that i started getting those no VGA output bios errors
what i tried:
- changing pcie 16x slot
- changing DP cable from 2.0 to 1.2
- changing DP on back of the card
- updating chipset (i mean, who knows at this point...)
- changing case fans from fan headers to hub (lowering power strain on MB)
- reseating RAM modules ( at first i thought it was RAM error not VGA since i searched for generic bios beeps)
- i did MemTest86 (to be sure ram was ok)
only thing i can think of at this point is swap card with my brother, to check how it will work in different PC, while i'll be able to check if 6700XT works fine in mine.
i'm kind of skeptical to CPU or GPU defect since it did work fine for 2 weeks before changing case fans, and i have no idea what happened after that... either defect emerged after 2 weeks or there's some random thing happening
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