Linnaeus

Thanks Commander! I've taken the battery out many times, but nothing in that regard seems to work. I do have a CMOS back I/O button, which I'm not sure how to properly operate. Do you know if there's a specific way I need to press the button? i.e. holding it for 30 seconds while the system is NOT connected to any power, or while the system IS connected to power but not turned on? Thanks chief.

Hey there Hadoken, did this get resolved at all? I'm having a very similar problem with my 3700x and ASUS crosshair I'm looking for some pointers too. If I fix anything, I'll let you know how it goes

Hey Jake, I'm having a similar issue. How did you clear your CMOS?

Oh man, this sucks. I'm no expert but that was a well told crisis story lol. Did you get it resolved, or maybe take it to a shop?

Having a similar problem with my new Ryzen build, I don't know how to help, although - if I find a fix for mine I'll let you know!

Hey, I'm having a very similar problem. Something tells me that either we BOTH need to get new motherboards? (unlikely) or there's something we haven't tried. Also, Moonzy please come back and help us

HELP. I think I've broken my x570 Crosshair. Don't do it! It doesn't let me update the bios, clear the CMOS and more importantly post after a bad overclock.

Hey guys, I (clumsily stumbled into my bios and) overclocked my 3700x and F4-3600C16D-16GTZNC, now my system doesn't post and I can't update my BIOS, nor can I clear my CMOS (I've tried it all). If you could check out my thread, that'd be really helpful. Thanks

Hey dude, you still having problems? I tried overclocking my memory the other day too and I can't reset my CMOS on my ASUS crosshair viii hero. Not happy about this.

Okay I saw a TECH YES CITY YouTube video about taking off his AMD wraith prism cooler and in the process he moved and damaged the CPU just by trying to remove the fan. Check your CPU pins! It might be the same issue. (edit, shit I just re-read the part about testing your cpu in your friends system, maybe not... Sorry dude!)

Hey guys, could you help out with my thread? I'm having a similar issue where my system isn't posting

Hi there, As the title suggests, the system was working perfectly fine and then I changed almost all the settings for my RAM in the advanced menu of my bios and also one setting regarding the CPU (can't remember what, but I tried to overclock to 4.6Ghz by entering "46" in the 'advanced' section NOT the 'extreme' section) and now, my system won't post. Everything is effectively brand new, all shipped to my house within the last fortnight. Here's my gear: ASUS ROG Crosshair VIII Hero (WiFi) Ryzen 7 3700x Stock AMD Wraith Prism Cooler MSI VENTUS GP OC RTX 2080 TI Samsung 970 Evo Plus 500Gb G.Skill 3600Mhz 16Gb (8x2) DDR4 16-19-19-19-35 F4-3600C16D-16GTZNC ROG Strix 850W 80+ Gold Fully Modular Power Supply I get power to all my components, my CPU cooler's fans and lights turn on, my GPU's fans turn on and the RAM lights up. My motherboard provides a Q-code LED, which cycles through RAM (yellow), CPU(red), VGA (white) and system boot(yellow green). Mine is stuck at VGA(white) and displays these codes: 0C dE aD 30 47 01 92 The only two codes that aren't part of a booting up sequence are 0C, dE and 47. "0C", according to my manual is "reserved for future AMI SEC error codes". Nice and vague. dE and 47 are nowhere to be found, I've googled for them but no forum has them listed. My own troubleshooting: This is all being done without any connection to my case or external USB items. Everything that is connected is my CPU, CPU cooler + it's RGB and USB, alternating GPUs for external display, RAM and PSU. I've unplugged the PSU, waited five minutes and then removed the CMOS battery. I waited 30 minutes and then put it back in. Nothing changed. I used an 'LN2 Mode Jumper' which the manual said would 'remedy the cold-boot bug during POST and help the system boot successfully.' Nothing changed. Granted, I'm not sure if I have the cold-boot bug, but it was worth a try. I tried the onboard CMOS button while the system was and was not connected to power by pressing it once and then when that didn't work by holding it down. Nothing changed. I tried swapping out my GPU for the GT610 incase I'd messed up my 4 day old 2080 Ti (dw, it was brand new from Mwave and cheap) and I've reseated both my GPU's (not simultaneously) in the two accessible PCI-e lanes I've reseated both my RAM modules, also tried to boot with just one. Now here's the kicker. I'm writing this on a MacBook. To update the bios via usb flashback, I need to install the bios file and rename it 'CH8W.CAP'. The download includes a .exe program that will automatically change the file's name. Because I don't have access to a windows computer right now, I decided to manually rename the file by right clicking and then selecting rename. When I plug the USB into the dedicated slot, the USB flashes signalling that it's receiving power etc. When I press the flashback button for three seconds it turns blue. At this point if it was working successfully it would continue blinking until it was finished updating. Mine blinks four times and then remains a horrible, static blue. Any tips? Maybe some help with those Q-codes? I told my mate what happened about fiddling with an overclock, and he put his face in his hands for about a minute. Fair enough.