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NEW BIOS with Resizable Bar for Qiyida X99 K9S-TPM2.0 #185

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@Aalesund2

BIOS File: qiyida-x99-k9s-stock-ReBar-build-13.11.2025.rom

BIOS Settings: Default
RAM timings: Available
Above 4G Decoding: Available
Resizable Bar: Available
TPM 2.0: Supported
Restore on Power Loss: Available

Build Date: 13.11.2025

This is a new bios for Qiyida X99 K9S-TPM2.0

What's new:

  • You have the Resizable Bar option by default (no need for mods)
  • The motherboard uses the MSI 14-pin as all other Qiyida (previously used an Asus and confused a lot of people)
  • RAM speed now works and the motherboards support up to 2666Mhz (previously always was 2133Mhz, now depending on the CPU model can be max up to 2133Mhz, 2400Mhz or 2666Mhz)

Keep in mind - Above 4G Decoding and Resizable Bar are DISABLED by default!
To enable them, you have to change to UEFI video mode and disable CSM!

Qiyida X99 K9S-TPM2.0 supports ONLY dual-channel memory and you have to install the RAM stick first on the yellow slots!!! The 2nd M.2 slot is NGFF, only the top slot is NVME. If you want quad-channel memory and 2 NVME slots, then use H9S. The only advantage of K9S is that it supports M2 WIFI and the H9S doesn't have M2 WIFI slots.

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