neeshantcharlie

Hello everyone. I have a 1 month old Gigabyte B450 Gaming X motherboard with Ryzen 5 3600 CPU. The PSU is Antec 550W. It was running fine until a few days ago. A few days ago my USB WiFi adapter suddenly started acting up.. it would disconnect and reconnect whenever there was heavy network usage. I thought the adapter was faulty and so threw it in the bin and got a new one. It was running fine until this too exhibited the same symptoms. So I suspected power issues and plugged in an external hard drive. The drive didn't spin up. Tried all ports. So I got my USB tester and found at every port the no load voltage was around 5V. But whenever even any moderate load is connected like a USB light, the voltage drops below USB specifications. I tried a dummy load of 10 ohm to simulate 0.5A draw, but the voltage reduced to almost 1.5V and even the keyboard and mouse dropped out until reboot. Only keyboard and mouse work right now due to low power requirements. Even USB drives don't work. Thought it was the PSU but 5V line is reported okay and I also tested with multimeter. Tried clearing CMOS and downgrading BIOS. Same problem. Please advise.

Great explanations! Thank you!

I was surprised to learn that the Snapdragon 855 mobile CPU has 1.5 times the transistor count than the Ryzen 5 3600. Both have the same fabrication size of 7nm. Then how come a big desktop CPU has lower number of transistors than a tiny mobile CPU. And how come the Ryzen performs many, many times faster than the Snapdragon?

I am finding that most processors that are released in the past few years have nearly same single core performance scores in Geekbench. My 8 year old i5 has almost same single core score as the Threadripper 1950X. We see increasing core count but why single core performance has stagnated, I'm curious. While GPUs are becoming notably faster with each generation, CPUs are almost the same.

Thank you for your help. I got a new cooler , the Cooler Master H410R and now idle has dropped to 39℃ and full unrealistic load maximum is 82℃ and mostly remains at around 75℃. But if I let the motherboard choose auto with 0V offset, it reaches the same 95℃. But the -0.087 V offset is great. I'm wondering does this low voltage cause performance loss? I get automatic 4.2 GHz single core use but all core use drops to 3.9 GHz. I have seen the geekbench score of 1200(single) and 6600 (all cores) online for other people using Ryzen 3600, but I reach 1185 (single) but only 5200 score for all cores.

But that 95C reached within mere seconds.. I was wondering is the CPU heatspreader and die somewhat loose or got loose when I applied quite a lot of oblique pressure while clamping the A30 cooler?

I just got the Ryzen 5 3600 and Gigabyte b450 Gaming X motherboard. 8 GB 3000 MHz RAM. Everything at default settings in BIOS, except fan is set at full speed. The problem is under stress test of OCCT or Prime 95, the CPU shoots up to 95℃ in just a few seconds! Yes. Just 30 seconds. Then vigorously throttles down to 3.6 GHz and the temps remain at 93℃. I tried with Antec A30 cooler, stock cooler, results are the same. Tried various methods of thermal paste application (MX4) and emptied tue entire tube to no avail. Now, I disabled PBO in the BIOS. Things got a few degrees cooler with all cores hitting higher at 3.9GHz. It goes to 4.02 GHz, hits 95C and downclocks to 3.9GHz and the process repeats. Then I read lots of forums online and tweaked the BIOS Vcore offset voltage. I played around with increments and settled at -0.087V. Surprisingly, all the cores remained at 3.9 GHz, but temps much low at 80C, occasionally hitting 87. I'm quite surprised.. There is no free lunch. A highly negative offset can't be stable at 3.9 GHz but OCCT runs fine without error. What am I missing here?