Asus Prime X299- A II ATX Motherboard (Intel X299) LGA 2066, 12 IR3555 Power Stages, DDR4 4266 MHz, Triple M.2, USB 3.2 Gen 2 Type-C, Intel LAN and Aura Sync RGB Lighting

曲げてしまいました． 古い経験では，CPU側にピンがあり，ピンの間隔もそれなりにあったので，ピンが曲がっても直すことができました．この機種（LGA 2066）ぐらいになると，直せないです． それで，元のマザーと単純に置き換えることが確実にできる，という主旨で，現行機種ではなくやや古い機種ではありますが，何とかこちらで見つけて，購入．ちょっと値段が高かったと思いますが，単純置き換え，を優先しました． ところで，ASUSのマザーの場合，付属DVDからドライバを入れなければなりませんね．グラボなど拡張カードの場合は，ハードウェア付属のCDやDVDは古いので使うことはない，と経験上，思っています．しかし，ASUSのマザーの場合，ASUSサイトに掲載されているドライバはあくまでアップデートだけであって，まずは付属DVDを使ってね，ということのようです．

Great

The CPU pins were all fine, all components working so far after a couple weeks of use. Instructions were pretty clear on the setup. I have some experience building PCs but by no means an expert, everything was pretty standard.

Fitted a treat on son's PC after trying other ones. This one finally fitted & worked well

The Asus Prime X299-A II ATX Motherboard has proven to be an outstanding choice for my high-performance system. As an enthusiast seeking powerful performance and versatility, this motherboard has exceeded my expectations in every aspect. First and foremost, the compatibility with Intel X299 processors and LGA 2066 socket ensures optimal performance and future-proofing for my system. It supports a wide range of Intel Core X-Series processors, providing exceptional power and speed for demanding tasks such as gaming, content creation, and heavy multitasking. The Prime X299-A II boasts an impressive array of features. The robust VRM design and advanced power delivery ensure stable and efficient performance, even under heavy loads. The motherboard supports up to 128GB of DDR4 memory, allowing for ample capacity and exceptional speeds. One of the standout features of this motherboard is its extensive connectivity options. It features multiple PCIe slots, SATA ports, USB ports, and M.2 slots, providing flexibility for expansion and accommodating a wide range of peripherals and storage devices. The inclusion of USB 3.2 Gen 2 and Thunderbolt 3 support further enhances the connectivity capabilities, allowing for lightning-fast data transfer speeds and seamless connections with external devices. The build quality of the Prime X299-A II is exceptional. The motherboard feels solid and well-constructed, ensuring durability and longevity. The UEFI BIOS is user-friendly and offers extensive customization options, making it easy to fine-tune the system according to my preferences.