MSI MPG x870e Carbon WiFi Owners

Update to the latest bios, and latest AMD chipset drivers is the first step.

Note, when the motherboard "first" boots on a new bios it needs to do memory training, thereafter that initial boot, subsequent boot times should be lessened i.e. quicker.

Check there are no old SATA/HDD which are slowing things down.
 
Deluxe1 said:
Just got my system up and running but the boot times are really slow, like from a hd 10 years ago.

9800x3d, sn8100 ssd and 32gb 7600 ram.

Any ways to speed this up?
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Enable "Memory Context Restore" in the BIOS, remembers the memory training for X weeks or until you change a setting in the BIOS that requires re-training.
 
New BIOS released today

7E49v1A64 2025-09-09 13.08 MB
  • Description:
    AGESA PI 1.2.0.3g updated.
  • Improved compatibility of the Ryzen 8000 series CPU.
 
Anyone in this thread using a 5080/5090?

I seem to have a problem reliably getting this board to boot without the main PCIe slot sometimes being stuck at PCIe gen1.1, 2 or 3
 
Cenuij said:
Anyone in this thread using a 5080/5090?

I seem to have a problem reliably getting this board to boot without the main PCIe slot sometimes being stuck at PCIe gen1.1, 2 or 3
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I’ve used a 4080 and upgraded to a 5090 on my board and had no issues on boot. Have you tried re-seating the card, update drivers etc and that your power supply is sufficient for a 5090? I’m not sure what you mean about the PCI slots as the card should only be in one slot (the one with the release button clip). But be aware of where you place your storage m.2 if using as per Hankscorpio’s post, but this should not intefer with boot: -
HankSc0rpi0 said:
No. But when you populate the 2nd gen5 slot (m2_2) the GPU lanes will be halved to 8x. Limitation of x870e and all boards like this face CPU / GPU lane sharing except the ASRock boards which only have a single m2 gen5 slot. Unless you need the sequential read write speeds you'd be better off using a gen5 m2 in slot 1 and a gen4 m2 in slot 3 or 4 which use the chipset and don't share lanes with the cpu
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Webble09 said:
I’ve used a 4080 and upgraded to a 5090 on my board and had no issues on boot. Have you tried re-seating the card, update drivers etc and that your power supply is sufficient for a 5090? I’m not sure what you mean about the PCI slots as the card should only be in one slot (the one with the release button clip). But be aware of where you place your storage m.2 if using as per Hankscorpio’s post, but this should not intefer with boot: -
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Yeah, always avoided the m2_2 - but I have all the other m2/nvme slots in use, psu not an issue @1300

The issue is somewhat better after turning spread spectrum modulation on, so maybe a lot of noise on the board traces idk, if it's not connecting at gen5 now a reboot usually resolves that
 
Cenuij said:
Anyone in this thread using a 5080/5090?

I seem to have a problem reliably getting this board to boot without the main PCIe slot sometimes being stuck at PCIe gen1.1, 2 or 3
Click to expand...
Yeah I had intermittant issues with this way back at the start of the year. The fix was to enable the FCH Spread Spectrum option in the BIOS and it's worked fine ever since.
 
I have been battling with intermittent boot-up instability (choppy mouse, system hang, awful gpu performance) with my MSI PRO X870E-P WIFI ever since I upgraded to a 5080 FE (reboot always fixed). Put it down to NVidia 50 series driver hell. Tried lots and lots of bios options over the months, recently stumbled on an MSI forum post about bios updates and people were talking about FCH Spread Spectrum and MSI boards being very unstable with it turned off. I did not think it would work but about a week in to it now and blow me down it has resolved everything as far as I can see. I even emailed OC to see about changing the board but I may recind this now. Does make me reconsider MSI as a motherboard manufacturer in the future. God there is not a lot of good mobo makers left, what with Asrock murdering AMD cpus at the moment.
 
GhostSeven said:
I have been battling with intermittent boot-up instability (choppy mouse, system hang, awful gpu performance) with my MSI PRO X870E-P WIFI ever since I upgraded to a 5080 FE (reboot always fixed). Put it down to NVidia 50 series driver hell. Tried lots and lots of bios options over the months, recently stumbled on an MSI forum post about bios updates and people were talking about FCH Spread Spectrum and MSI boards being very unstable with it turned off. I did not think it would work but about a week in to it now and blow me down it has resolved everything as far as I can see. I even emailed OC to see about changing the board but I may recind this now. Does make me reconsider MSI as a motherboard manufacturer in the future. God there is not a lot of good mobo makers left, what with Asrock murdering AMD cpus at the moment.
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It's weird they haven't addressed it with a BIOS update, considering all the new ones they regularly put out.
 
I updated to 7E49v1A64 from 7E49v1A33 at the weekend. Apart from it doing the usual of wiping all my settings, the only thing I have noted is that it takes longer to post, with the display being blank for around 10 seconds before 1 second of the logo and press [Del] to enter the setup message before it begins to boot the OS.

Memory retraining seemed to take a while as well.
 
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