Have an issue with a strix x99 that has been working fine for months, tried to add a hyper.m2 x16 card to it and only one nvme ssd was recognised, this is a pretty simple setting change in BIOS it seems after reading around a bit. Restarted pc and ever since it won't boot into BIOS with a 99 qcode displayed. I've tried: Reseating nvme, gpu, ram Unplugging all usbs Unplugging all USB except keyboard Different keyboard Keyboard in different USB slots Unplugging front panel Unplugging displayport Cmos clear Bios Flashback (longer first boot to same code, then back into the same loop) Just restarting it 10x in a row Starting without nvme Starting without gpu Starting with unformatted new nvme This board has always been troublesome on boot as most x99 seem to be but never quite this hard. Obviously something about pcie has made it unhappy but really not sure what to try next other than launching it out the window for a new board and cpu.
The Asus rep has been absent for some time so doubt you'll here from them here. I'm no expert, but the the hyper m.2 x16 card looks like it's for a raid array using m.2 drives through a PCI-E slot for super fast speeds and will only show as one drive. Also if your board gets tetchy when booting normally it's probably a ram issue and you'll need to play with speed and timings to get them to play nice.
Seemed to be the done thing to post troubleshooting here so I went for it Hyper M.2 card does support raid and might be its main purpose even but it also gives you extra M.2 slots through pcie interface where you don't have vroc to utilise raid. Playing with ram speeds would be great if it'd boot into bios...
Yeah this is all with the M.2 card removed now, apologies missed that detail! It was in the 2nd lit x16 slot, x16_3
I would suggest trying it in the bottom slot as that comes from the PCH rather than the CPU. Also ensure that you’ve set up the card properly. Check the jumper positioning.
Found the issue in the end, pcie change, I.e the new card nudged the BIOS into a 'fresh' start, and it doesn't default to a display port output. Hdmi output linked up and it would display and I could get into the bios to get things set up, the 99 error code is normal at that stage of booting where it throws a message along the lines of bios setup needed, press f1 to recover. For anyone else stumbling on this in relation to the Asus hyper M.2 x16 card though, only x299 systems support pcie bifurcation, a method to split a single pcie slot into 4x4 Lane devices. So you can only see 1 ssd per pcie slot on other chipsets.
