ricinus13

Okay, did a bit of google searching, and found that this issue is actually a very common one with absolutely no fix. Looks like I'll be buying a new GPU.

Alright, I'll try it later today, see if it does anything. Can't really be worse than this, since it's already almost paperweight, as 300MHz in any game produces laughable performance, probably the same level as the iGPU.

Yeah, I figured. Do you think a BIOS flash on the card could help? Also any idea on why the core clock is locked at 300MHz?

Checked both with Windows' on error checking and a 3rd party program, no errors.

No errors on either.

Yes, as far as I can tell both the HDD and the SSD are fine.

RAM is in place as should be. When I installed the new PSU yesterday I cleaned everything and checked everything. Also with the RAM coming out of the slots it would either not be detected by Windows(which isn't the case) or not boot at all(which isn't the case either). And no sound, just a hard crash with black screen.

I'm certain that this is not the problem, as I stated a few times already that temps are not the issue. Everything seems normal, GPU and VRM temps included.

I highly doubt that, since then the GPU core temps would be higher than normal(the card was running at 75C at full load even when I bought it, which is normal for a 390), which they aren't at all.

For the CPU yes, I did it quite a few times last time I did it was when I put an NH-D14 on it, about a year ago. Not on the GPU, since that would have voided the warranty, and the temperatures were never an issue(maxed out at 76-77C). Furthermore the PC is sitting in an air conditioned room so even the summer heat is not a problem. Edit: the whole thing is in a Fractal Design Define R4 case with more than enough airflow.

The GPU is a bit over 2.5 years old, the CPU/motherboard/RAM is 4.5 if I remember correctly. The old PSU was purchased at the same time as the GPU.

Hey everyone, I'm having some problems with my PC, and I think it's my R9 390 acting up. It all started with random black screens in games or YT vids(basically load on the GPU). These were hard crashes as I couldn't do anything except press the reset button. Doing so, the card's fans started spinning at 100% indefinitely, and the PC didn't post/boot. At first I thought it was my PSU, as it wasn't the best(not a bad one though). Then the crashes started getting a lot more common, first some underclocking on both the GPU core and memory helped, but after some time nothing did anything, so I decided to buy a good PSU. With it installed the crashes didn't go anywhere though, so in conclusion it wasn't the PSU. So it's probably the GPU. Today I found a new problem. No matter what I set in Afterburner/Sapphire TRIXX, the GPU core clock is at 300MHz. Launching games doesn't ramp up the clock speed at all, it's stuck on 300. The crashes are random, sometimes I can run(or could at least until the core clock was locked at 300MHz) Unigine Valley benchmark 5 times continuously and nothing happened, sometimes even a twitch stream caused a crash. I tried with multiple drivers and no luck, crashed with every version. I tried OC'ing and UC'ing everything on the card and while underclocking seemed to help at the beginning, now it does nothing. So that's my problem, any ideas on what it could be? I don't even hope for a fix at this point(would be a miracle if there was), I just want to identify the issue at least, I don't want to run around buying random parts that could cause the issue. Thanks for reading and any help appreciated. PC: R9 390 Nitro, i5 3570k, Asus P8-Z77V-LX (I know it's old but for World of Warships it's way more than enough for me)

Okay so I found the solution, I doubt anyone will need it in the future, but if so, here is what you need to do. The motherboard supports the CPU but loads the incorrect microcode if you flash the BIOS with the original processor. What you need to do is download the latest BIOS the USB Stick version from Fujitsu's page. Run the program, follow the instructions. Install the "unsupported" CPU and plug in the USB stick. Change the boot order so the USB stick is on top of the list. Restart. It will ask if you want to flash the BIOS, hit "y" then enter. Done, it's that simple.

Thanks, yeah mine is an E stepping one, guess I have to find a C stepping one.

Hello everyone, I have a problem with an old PC. I've got a Fujitsu Esprimo N2540 PC which came with a Pentium E2220 CPU. I swapped that for a Core 2 Duo E8400 and now I can't get it to boot. I always get the "no microcode update loaded for booting processor" error message. I tried updating the BIOS, but that didn't help. I specifically chose the E8400 as the N2540 was available with that CPU, so I thought it would work. Is there any solution to this problem?