Intel Motherboards - Showing 289 - 312 of 1792 Products
Open Box: ASUS B760M-AYW WIFI D4 II Intel B760 (LGA 1700) microATX mATX ...
- Memory Standard: DDR4 2133 / DDR4 2400 / DDR4 2666 / DDR4 2667 / DDR4 2933 / DDR4 3200 / DDR4 3333 / DDR4 3400 / DDR4 3466 / DDR4 3600 / DDR4 3733 / DDR4 4000 / DDR4 4266 / DDR4 4400 / DDR4 4600 / DDR4 4800 / DDR4 5000 / DDR4 5066 / DDR4 5333
- Number of Memory Slots: 2x288pin (DDR4)
- Brand: ASUS
- CPU Socket Type: LGA 1700
- Chipset: Intel B760
- Form Factor: Micro ATX
- Serial ATA (SATA): 4 x SATA 6Gb/s
- PCI Express 5.0 x16: 1 x PCI Express 5.0 x16
- Model #: B760M-AYW WIFI D4 II
- Item #: 9B-13-119-744R
- Return Policy: Final Sale Return Policy
Open Box: ASUS PRIME B860-PLUS WIFI-CSM B860 LGA 1851 ATX motherboard, Intel Core ...
- Memory Standard: Support up to 8200+MT/s (OC)
- Number of Memory Slots: 4x288pin (DDR5)
- Brand: ASUS
- CPU Socket Type: LGA 1851
- Chipset: Intel B860
- Form Factor: ATX
- Serial ATA (SATA): 4 x SATA 6Gb/s
- PCI Express 5.0 x16: 1 x PCI Express 5.0 x16
- Model #: PRIME B860-PLUS WIFI-CSM
- Item #: 9B-13-119-760R
- Return Policy: Final Sale Return Policy
Open Box: ASUS ROG STRIX Z890-E GAMING WIFI Intel® Z890 LGA 1851 ATX motherboard, ...
- Memory Standard: DDR5 4400 / DDR5 4800 / DDR5 5000 / DDR5 5200 / DDR5 5400 / DDR5 5600 / DDR5 5800 / DDR5 6000 / DDR5 6200 / DDR5 6400 / DDR5 6600 / DDR5 6800 / DDR5 7000 / DDR5 7200 / DDR5 7400 / DDR5 7600 / DDR5 7800 / DDR5 7900 / DDR5 7950 / DDR5 8000 / DDR5 8200 / DDR5 8266 / DDR5 8400 / DDR5 8600 / DDR5 8666 / DDR5 8800
- Number of Memory Slots: 4x288pin (DDR5)
- Brand: ASUS
- CPU Socket Type: LGA 1851
- Chipset: Intel Z890
- Form Factor: ATX
- Serial ATA (SATA): 4 x SATA 6Gb/s
- PCI Express 5.0 x16: Intel Core Ultra Processors(series 2)* 1 x PCIe 5.0 x16 slots (supports x16 mode)
- Model #: ROG STRIX Z890-E GAMING WIFI
- Item #: 9B-13-119-692R
- Return Policy: Final Sale Return Policy
Open Box: ASRock B760M PG Lightning WiFi LGA 1700 Intel B760 Micro ATX Motherboard
- Memory Standard: Supports DDR5 non-ECC, un-buffered memory up to 7200+(OC) 1DPC 1R Up to 7200+ MHz (OC), 4800 MHz Natively. 1DPC 2R Up to 6000+ MHz (OC), 4400 MHz Natively. 2DPC 1R Up to 5600+ MHz (OC), 4000 MHz Natively. 2DPC 2R Up to 4800+ MHz (OC), 3600 MHz Natively.
- Number of Memory Slots: 4x288pin (DDR5)
- Audio Chipset: 7.1 CH HD Audio (Realtek ALC897 Audio Codec) Nahimic Audio
- Brand: ASRock
- CPU Socket Type: LGA 1700
- Chipset: Intel B760
- Form Factor: Micro ATX
- Serial ATA (SATA): 4 x SATA 6Gb/s
- Model #: B760M PG Lightning WiFi
- Item #: 9B-13-162-145R
- Return Policy: Final Sale Return Policy
Open Box: ASRock B860I Lightning WiFi LGA 1851 Intel B860 SATA 6Gb/s Intel Core Ultra ...
- Memory Standard: Up to DDR5 9333+(OC)
- Number of Memory Slots: 2x288pin (DDR5)
- Audio Chipset: Realtek ALC1220
- Brand: ASRock
- CPU Socket Type: LGA 1851
- Chipset: Intel B860
- Form Factor: Mini ITX
- Serial ATA (SATA): 3 x SATA 6Gb/s
- Model #: B860I Lightning WiFi
- Item #: 9B-13-162-219R
- Return Policy: Final Sale Return Policy
Open Box: GIGABYTE B860 DS3H WIFI6E Intel Core Ultra (Series 2) LGA 1851 Motherboard, ...
- Memory Standard: DDR5 5600 / DDR5 6400 / DDR5 6600 / DDR5 6800 / DDR5 7000 / DDR5 7200 / DDR5 7400 / DDR5 7600 / DDR5 7800 / DDR5 7900 / DDR5 7950 / DDR5 8000 / DDR5 8200 / DDR5 8266 / DDR5 8400 / DDR5 8600 / DDR5 8800 / DDR5 9066
- Number of Memory Slots: 4x288pin (DDR5)
- Brand: GIGABYTE
- CPU Socket Type: LGA 1851
- Chipset: Intel B860
- Form Factor: ATX
- Serial ATA (SATA): 4 x SATA 6Gb/s
- PCI Express 5.0 x16: CPU: - 1 x PCI Express x16 slot, supporting PCIe 5.0 and running at x16 (PCIEX16) * The PCIEX16 slot can only support a graphics card or an NVMe SSD. If only one graphics card is to be installed, be sure to install it in the PCIEX16 slot.
- Model #: B860 DS3H WIFI6E
- Item #: 9B-13-145-556R
- Return Policy: Final Sale Return Policy
Open Box: MSI PRO B760M-P DDR4 LGA 1700 Intel B760 SATA 6Gb/s Micro ATX Motherboard
- Memory Standard: DDR4 3200
- Number of Memory Slots: 4x288pin (DDR4)
- PCI Express x16: 1 x PCI Express x16
- Audio Chipset: Realtek ALC897
- Brand: MSI
- CPU Socket Type: LGA 1700
- Chipset: Intel B760
- Form Factor: Micro ATX
- Model #: PRO B760M-P DDR4
- Item #: 9B-13-144-597R
- Return Policy: Final Sale Return Policy
Open Box: ASRock Z890 Pro RS LGA 1851 Intel Z890 SATA 6Gb/s ATX Motherboard
- Memory Standard: DDR5 4400 / DDR5 4800 / DDR5 5000 / DDR5 5200 / DDR5 5400 / DDR5 5600 / DDR5 5800 / DDR5 6000 / DDR5 6200 / DDR5 6400 / DDR5 6600 / DDR5 6800 / DDR5 7000 / DDR5 7200 / DDR5 7400 / DDR5 7600 / DDR5 7800 / DDR5 7900 / DDR5 7950 / DDR5 8000 / DDR5 8200 / DDR5 8266 / DDR5 8400 / DDR5 8600 / DDR5 8666 / DDR5 8800 / DDR5 8933 / DDR5 9000 / DDR5 9066
- Number of Memory Slots: 4x288pin (DDR5)
- Audio Chipset: Realtek ALC897
- Brand: ASRock
- CPU Socket Type: LGA 1851
- Chipset: Intel Z890
- Form Factor: ATX
- Serial ATA (SATA): 4 x SATA 6Gb/s
- Model #: Z890 Pro RS WiFi White
- Item #: 9B-13-162-178R
- Return Policy: Final Sale Return Policy
Open Box: ASUS TUF GAMING Z890-PLUS WIFI Z890 LGA 1851 ATX motherboard, Intel® ...
- Memory Standard: DDR5 4400 / DDR5 4800 / DDR5 5000 / DDR5 5200 / DDR5 5400 / DDR5 5600 / DDR5 5800 / DDR5 6000 / DDR5 6200 / DDR5 6400 / DDR5 6600 / DDR5 6800 / DDR5 7000 / DDR5 7200 / DDR5 7400 / DDR5 7600 / DDR5 7800 / DDR5 7900 / DDR5 7950 / DDR5 8000 / DDR5 8200 / DDR5 8266 / DDR5 8400 / DDR5 8600 / DDR5 8666 / DDR5 8800 / DDR5 8933 / DDR5 9000 / DDR5 9066
- Number of Memory Slots: 4x288pin (DDR5)
- Brand: ASUS
- CPU Socket Type: LGA 1851
- Chipset: Intel Z890
- Form Factor: ATX
- Serial ATA (SATA): 4 x SATA 6Gb/s
- PCI Express 5.0 x16: 1 x PCI Express 5.0 x16
- Model #: TUF GAMING Z890-PLUS WIFI
- Item #: 9B-13-119-695R
- Return Policy: Final Sale Return Policy
Open Box: MSI MEG Z890 UNIFY-X LGA 1851 Intel Z890 ATX Motherboard
- Memory Standard: DDR5 4800 / DDR5 5000 / DDR5 5200 / DDR5 5400 / DDR5 5600 / DDR5 5800 / DDR5 6000 / DDR5 6200 / DDR5 6400 / DDR5 6600 / DDR5 6800 / DDR5 7000 / DDR5 7200 / DDR5 7400 / DDR5 7600 / DDR5 7800 / DDR5 7900 / DDR5 7950 / DDR5 8000 / DDR5 8200 / DDR5 8266 / DDR5 8400 / DDR5 8600 / DDR5 8666 / DDR5 8800 / DDR5 8933 / DDR5 9000 / DDR5 9066 / DDR5 9200 / DDR5 9466 / DDR5 9500 / DDR5 9600
- Number of Memory Slots: 2x288pin (DDR5)
- Audio Chipset: Realtek ALC4082
- Brand: MSI
- CPU Socket Type: LGA 1851
- Chipset: Intel Z890
- Form Factor: ATX
- Serial ATA (SATA): 6 x SATA 6Gb/s
- Model #: MEG Z890 UNIFY-X
- Item #: 9B-13-144-683R
- Return Policy: Final Sale Return Policy
Open Box: MSI PRO B760M-P LGA 1700 Intel B760 SATA 6Gb/s Micro ATX Motherboard
- Memory Standard: Memory Support DDR5 6800+(OC)/ 6600(OC)/ 6400(OC)/ 6200(OC)/ 6000(OC)/ 5800(OC)/ 5600(JEDEC)/ 5400(JEDEC)/ 5200(JEDEC)/ 5000(JEDEC)/ 4800(JEDEC) MHz Max. overclocking frequency: • 1DPC 1R Max speed up to 6800+ MHz • 1DPC 2R Max speed up to 6400+ MHz • 2DPC 1R Max speed up to 6000+ MHz • 2DPC 2R Max speed up to 5600+ MHz
- Number of Memory Slots: 4x288pin (DDR5)
- Audio Chipset: Realtek® ALC897 Codec 7.1-Channel High Definition Audio
- Brand: MSI
- CPU Socket Type: LGA 1700
- Chipset: Intel B760
- Form Factor: Micro ATX
- Serial ATA (SATA): * SATA5 will be unavailable when installing M.2 SATA SSD in the M2_2 slot.
- Model #: PRO B760M-P
- Item #: 9B-13-144-709R
- Return Policy: Final Sale Return Policy
Open Box: MSI PRO Z890-P WIFI LGA 1851 Intel Z890 ATX Motherboard
- Memory Standard: DDR5 4800 / DDR5 5000 / DDR5 5200 / DDR5 5400 / DDR5 5600 / DDR5 5800 / DDR5 6000 / DDR5 6200 / DDR5 6400 / DDR5 6600 / DDR5 6800 / DDR5 7000 / DDR5 7200 / DDR5 7400 / DDR5 7600 / DDR5 7800 / DDR5 7900 / DDR5 7950 / DDR5 8000 / DDR5 8200 / DDR5 8266 / DDR5 8400 / DDR5 8600 / DDR5 8666 / DDR5 8800 / DDR5 8933 / DDR5 9000 / DDR5 9066 / DDR5 9200
- Number of Memory Slots: 4x288pin (DDR5)
- Audio Chipset: Realtek ALC897
- Brand: MSI
- CPU Socket Type: LGA 1851
- Chipset: Intel Z890
- Form Factor: ATX
- Serial ATA (SATA): 4 x SATA 6Gb/s
- Model #: PRO Z890-P WIFI
- Item #: 9B-13-144-672R
- Return Policy: Final Sale Return Policy
Open Box: ASRock Z890 Taichi LGA 1851 Intel Z890 ATX Motherboard
- Memory Standard: DDR5 4400 / DDR5 4800 / DDR5 5000 / DDR5 5200 / DDR5 5400 / DDR5 5600 / DDR5 5800 / DDR5 6000 / DDR5 6200 / DDR5 6400 / DDR5 6600 / DDR5 6800 / DDR5 7000 / DDR5 7200 / DDR5 7600 / DDR5 7900 / DDR5 7950 / DDR5 8000 / DDR5 8200 / DDR5 8266 / DDR5 8400 / DDR5 8600 / DDR5 8800 / DDR5 9000 / DDR5 9066 / DDR5 9200 / DDR5 9600
- Number of Memory Slots: 4x288pin (DDR5)
- Audio Chipset: Realtek ALC4082
- Brand: ASRock
- CPU Socket Type: LGA 1851
- Chipset: Intel Z890
- Form Factor: ATX
- Serial ATA (SATA): 4 x SATA 6Gb/s
- Model #: Z890 Taichi
- Item #: 9B-13-162-169R
- Return Policy: Final Sale Return Policy
Open Box: ASRock Z890I Nova WiFi LGA 1851 Intel Z890 Mini ITX Motherboard
- Memory Standard: DDR5 6400 / DDR5 6600 / DDR5 6800 / DDR5 7000 / DDR5 7200 / DDR5 7400 / DDR5 7600 / DDR5 7800 / DDR5 7900 / DDR5 7950 / DDR5 8000 / DDR5 8200 / DDR5 8266 / DDR5 8400 / DDR5 8600 / DDR5 8666 / DDR5 8800 / DDR5 8933 / DDR5 9000 / DDR5 9066 / DDR5 9200 / DDR5 9466 / DDR5 9600 / DDR5 9866
- Number of Memory Slots: 2x288pin (DDR5)
- Audio Chipset: Realtek ALC4082
- Brand: ASRock
- CPU Socket Type: LGA 1851
- Chipset: Intel Z890
- Form Factor: Mini ITX
- Serial ATA (SATA): 2 x SATA 6Gb/s
- Model #: Z890I Nova WiFi
- Item #: 9B-13-162-182R
- Return Policy: Final Sale Return Policy
Open Box: MSI MAG B860 TOMAHAWK WIFI LGA 1851 Intel B860 SATA 6Gb/s Intel Core Ultra ...
- Memory Standard: Up to DDR5 9200+ MT/s (OC)
- Number of Memory Slots: 4x288pin (DDR5)
- Audio Chipset: Realtek ALC897
- Brand: MSI
- CPU Socket Type: LGA 1851
- Chipset: Intel B860
- Form Factor: ATX
- Serial ATA (SATA): 4 x SATA 6Gb/s
- Model #: MAG B860 TOMAHAWK WIFI
- Item #: 9B-13-144-692R
- Return Policy: Final Sale Return Policy
Open Box: GIGABYTE H610M S2H V2 DDR4 H610 Intel LGA 1700 Micro ATX Motherboard with ...
- Memory Standard: DDR4 3200
- Number of Memory Slots: 2x288pin (DDR4)
- Brand: GIGABYTE
- CPU Socket Type: LGA 1700
- Chipset: Intel H610
- Form Factor: Micro ATX
- Serial ATA (SATA): 4 x SATA 6Gb/s
- PCI Express 4.0 x16: 1 x PCI Express x16 slot, supporting PCIe 4.0 and running at x16
- Model #: H610M S2H V2 DDR4
- Item #: 9B-13-145-450R
- Return Policy: Final Sale Return Policy
Open Box: ASRock B860 LiveMixer WiFi LGA 1851 Intel B860 SATA 6Gb/s DDR5 Intel Core Ultra ...
- Memory Standard: Up to DDR5 8666+(OC)
- Number of Memory Slots: 4x288pin (DDR5)
- Audio Chipset: Realtek ALC1220
- Brand: ASRock
- CPU Socket Type: LGA 1851
- Chipset: Intel B860
- Form Factor: ATX
- Serial ATA (SATA): 4 x SATA 6Gb/s
- Model #: B860 LiveMixer WiFi
- Item #: 9B-13-162-204R
- Return Policy: Final Sale Return Policy
Open Box: GIGABYTE Z790 AORUS ELITE AX LGA 1700 Intel Z790 ATX Motherboard with DDR5, ...
- Memory Standard: Support for DDR5 7600(O.C.) /7400(O.C.) /7200(O.C.) /7000(O.C.) /6800(O.C.) /6600(O.C.) / 6400(O.C.) / 6200(O.C.) / 6000(O.C.) / 5800(O.C.) / 5600(O.C.) / 5400(O.C.) / 5200(O.C.) / 4800 / 4000 memory modules Dual channel memory architecture Support for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules (operate in non-ECC mode) Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules Support for Extreme Memory Profile (XMP) memory modules
- Number of Memory Slots: 4x288pin (DDR5)
- Audio Chipset: Realtek Audio CODEC High Definition Audio
- Brand: GIGABYTE
- CPU Socket Type: LGA 1700
- Chipset: Intel Z790
- Form Factor: ATX
- Serial ATA (SATA): 6 x SATA 6Gb/s
- Model #: Z790 AORUS ELITE AX
- Item #: 9B-13-145-417R
- Return Policy: Final Sale Return Policy
Open Box: GIGABYTE H610I H610 Intel LGA 1700 Mini-ITX Motherboard with DDR5, Single ...
- Memory Standard: DDR5 5600
- Number of Memory Slots: 2x288pin (DDR5)
- Audio Chipset: Realtek Audio CODEC High Definition Audio
- Brand: GIGABYTE
- CPU Socket Type: LGA 1700
- Chipset: Intel H610
- Form Factor: Mini ITX
- Serial ATA (SATA): 4 x SATA 6Gb/s
- Model #: H610I
- Item #: 9B-13-145-462R
- Return Policy: Final Sale Return Policy
Open Box: ASRock N100M Micro ATX (280) Motherboards - Intel, 1 DDR4 DIMM, 2 SATA3, 1 M.2 ...
- Memory Standard: 1 x DDR4 DIMM Slot - Supports DDR4 non-ECC, un-buffered memory up to 3200 - Supports ECC UDIMM memory modules (operate in non-ECC mode) - Max. capacity of system memory: 32GB
- Brand: ASRock
- Chipset: - Intel® Quad-Core Processor N100 (Up to 3.4 GHz) - Supports Intel® Turbo Boost Technology
- Form Factor: Micro ATX
- Serial ATA (SATA): 2 x SATA3 6.0 Gb/s Connectors *Supports NVMe SSD as boot disks
- PCI Express 3.0 x16: - 1 x PCIe 3.0 x16 Slot (PCIE1), supports x2 mode* - 1 x PCIe 3.0 x1 Slot (PCIE2)* - 1 x M.2 Socket (Key E), supports type 2230 Intel® CNVio (Integrated WiFi/BT)** *Supports NVMe SSD as boot disks **M.2 PCI Express module is not supported
- Max LAN Speed: Gigabit LAN 10/100/1000 Mb/s - Realtek 8111H
- CPU Type: - Intel® Quad-Core Processor N100 (Up to 3.4 GHz) ...
- Model #: N100M
- Item #: 9B-13-162-134R
- Return Policy: Final Sale Return Policy
Open Box: GIGABYTE H610M S2H V2 Motherboard, Supports 14th/13th/12th Gen Intel Core ...
- Memory Standard: DDR5 4400 / DDR5 4800 / DDR5 5200 / DDR5 5600
- Number of Memory Slots: 2x288pin (DDR5)
- Brand: GIGABYTE
- CPU Socket Type: LGA 1700
- Chipset: Intel H610
- Form Factor: Micro ATX
- Serial ATA (SATA): 4 x SATA 6Gb/s
- PCI Express 4.0 x16: 1 x PCI Express x16 slot, supporting PCIe 4.0 and running at x16
- Model #: H610M S2H V2
- Item #: 9B-13-145-576R
- Return Policy: Final Sale Return Policy
Open Box: ASRock H810M-X LGA 1851 Intel H810 Micro ATX Motherboard
- Memory Standard: Up to DDR5 6400
- Number of Memory Slots: 2x288pin (DDR5)
- Audio Chipset: Realtek ALC897
- Brand: ASRock
- CPU Socket Type: LGA 1851
- Chipset: Intel H810
- Form Factor: Micro ATX
- Serial ATA (SATA): 4 x SATA 6Gb/s
- Model #: H810M-X
- Item #: 9B-13-162-235R
- Return Policy: Final Sale Return Policy
Open Box: MSI Z790 GAMING PLUS WIFI LGA 1700 Intel Z790 SATA 6Gb/s ATX DDR5 PCI-E x16 ...
- Memory Standard: DDR5 7200+(OC)/ 7000(OC)/ 6800(OC)/ 6600(OC)/ 6400(OC)/ 6200(OC)/ 6000(OC)/ 5800(OC)/ 5600(JEDEC)/ 5400(JEDEC)/ 5200(JEDEC)/ 5000(JEDEC)/ 4800(JEDEC)
- Number of Memory Slots: 4x288pin (DDR5)
- Audio Chipset: Realtek ALC897
- Brand: MSI
- CPU Socket Type: LGA 1700
- Chipset: Intel Z790
- Form Factor: ATX
- Serial ATA (SATA): 6 x SATA 6Gb/s
- Model #: Z790 GAMING PLUS WIFI
- Item #: 9B-13-144-637R
- Return Policy: Final Sale Return Policy
Open Box: GIGABYTE B760M DS3H AX DDR4 LGA 1700 Intel B760 M-ATX Motherboard with ...
- Memory Standard: Support for DDR4 5333(O.C.)/ 5133(O.C.)/ 5000(O.C.)/ 4933(O.C.)/ 4800(O.C.)/ 4700(O.C.)/ 4600(O.C.)/ 4500(O.C.)/ 4400(O.C.)/ 4300(O.C.)/ 4266(O.C.)/ 4133(O.C.)/ 4000(O.C.)/ 3866(O.C.)/ 3800(O.C.)/ 3733(O.C.)/ 3666(O.C.)/ 3600(O.C.)/ 3466(O.C.)/ 3400(O.C.)/ 3333(O.C.)/ 3300(O.C.)/ 3200/ 3000/ 2933/ 2666/ 2400/ 2133 MT/s memory modules
- Number of Memory Slots: 4x288pin (DDR4)
- Brand: GIGABYTE
- CPU Socket Type: LGA 1700
- Chipset: Intel B760
- Form Factor: Micro ATX
- Serial ATA (SATA): 4 x SATA 6Gb/s
- PCI Express 4.0 x16: 1 x PCI Express 4.0 x16
- Model #: B760M DS3H AX DDR4
- Item #: 9B-13-145-425R
- Return Policy: Final Sale Return Policy
Intel Motherboard Questions and Answers
Introduction
A compatible Intel® motherboard is an essential component when assembling a desktop with an Intel processor. The motherboard determines what type of processor you can use, how many data storage drives you can install, the maximum amount of system memory supported, and more. To help you find the ideal Intel motherboard for your desktop build, NeweggBusiness answers several common questions about motherboards.
Questions
What is a motherboard chipset?
A motherboard chipset is a collection of components on the motherboard designed to integrate the processor with the rest of the system hardware. The chipset has a major impact on overall system performance and device compatibility. For each family of Intel processors, a different chipset is typically used. When shopping for an Intel motherboard, you will have to ensure that its chipset is compatible with the processor you intend to use.
What does CPU socket type mean?
The CPU socket is the component on the motherboard that holds and locks the processor in place. In order for a processor to be installed onto a motherboard, they both must have the same socket type. For example, an LGA 1150 processor can only be installed onto an Intel motherboard with a LGA 1150 socket.
However, having the same socket type does not necessarily mean that the processor and motherboard are compatible. Sometimes, multiple generations of processors can have the same socket type but use different chipsets.
What is the difference between PCI and PCIe®?
Both PCI and PCIe are computer expansion card standards that are used by devices such as video cards, sound cards, network adapters, and more. PCIe is a newer standard designed to replace PCI and is not backwards compatible. It is capable of faster data transfer rates, which allows for better performance from expansion cards.
Many ATX form factor Intel motherboards will have a combination of both PCI and PCIe expansion slots. Unfortunately, some motherboards—mainly small form factor motherboards such as Mini ITX—only have one PCIe slot due to space limitations.
What is BIOS?
It is an acronym that stands for Basic Input/Output System and is the very first program that starts when a computer is powered on. Stored on the motherboard, BIOS is the intermediary that interconnects the components and launches the operating system. The interface for BIOS is rather limited because it is mainly text based with a small color palette. Many motherboards include BIOS, though there is now a transition to the newer Unified Extensible Firmware Interface (UEFI).
What is UEFI?
Like BIOS, UEFI is an intermediary for the main operating system and the hardware. It is designed to replace BIOS as the standard operating system included on AMD and Intel motherboards. Compared to BIOS, UEFI is much more user friendly and secure, supports larger hard drives, reduces startup times, and more. Many new Intel motherboards now include UEFI instead of BIOS, though such motherboards may sometimes be advertised as having UEFI BIOS.

