Ms-7826 Motherboard Manual -

This 9-pin header connects your case's power button, reset button, and status LEDs.

Connecting the computer case’s power button, reset switch, and LEDs to an OEM board is often the hardest part of a case swap. The MS-7826 uses a standard HP-style header layout rather than retail MSI layouts.

Micro-ATX (24.4 cm x 24.4 cm / 9.6 in x 9.6 in) Chipset: Intel Z87 Processor Socket: LGA 1150 (Socket H3) Memory Slots: 4 × DDR3 DIMM Expansion Slots: 1 × PCI Express x16 (Gen 3.0) 3 × PCI Express x1 (Gen 2.0) 1 × PCI Express mini-card (half-length) Storage: 4 × SATA III (6.0 Gb/s) ports

| Symptom | Likely Fix from Manual | |---------|------------------------| | No POST, fan spins | Clear CMOS (JBAT1 short for 10s). | | Continuous long beeps | Unseated or faulty RAM – clean slots, test one stick at a time. | | USB ports dead after storm | Check F_USB1 fuse (near header) – manual shows location. | | Power button does nothing | Verify front panel header pinout (Power SW pins are often pins 6 & 8 on JFP1). | | BIOS corrupted | HP recovery method: Win+B or Win+V at power-on with BIOS USB drive. | ms-7826 motherboard manual

The MS-7826 is designed for high-performance casual computing and mid-range gaming builds.

Note: Haswell Refresh CPUs (e.g., i7-4790) may require the latest HP BIOS update to boot. Memory (RAM) Requirements DDR3 or DDR3L (Low Voltage) Speed Supported: 1333 MHz or 1600 MHz

motherboard, you can find the primary technical specifications and layout details through official HP support documentation and community-sourced diagrams. Core Specifications Overview This 9-pin header connects your case's power button,

i7-4770, i7-4770K, i7-4790, i7-4790K (Note: 4790/4790K require the latest BIOS update). Intel Core i5: i5-4430, i5-4570, i5-4670, i5-4690. Max TDP: Up to 84 Watts. RAM Configuration Architecture: Dual-channel. Type: DDR3 Non-ECC unbuffered. Speed: PC3-12800 (1600 MHz). Capacity: Up to 32 GB total (4 x 8 GB modules).

Move the cap back to the original position and plug the PC back in.

Before finding your documentation, it's crucial to understand exactly what the MS-7826 is. The MS-7826 (codenamed "Kaili" or "Kaili2") is not a standard retail motherboard you can buy off the shelf. It is an OEM (Original Equipment Manufacturer) product, to be used in their pre-built desktop computers, notably the HP Envy Phoenix 800 and 810 series, as well as some Envy 700 models . Its "Kaili" codename is used internally by HP and in their support documentation. Micro-ATX (24

Connect the Power LED cable. Pin 2 is Positive (+), Pin 4 is Negative (-).

To help give you the most accurate troubleshooting steps or upgrade options, tell me: What are you trying to install?

The MS-7826 utilizes MSI’s "Click BIOS 4." This is a UEFI (Unified Extensible Firmware Interface) environment featuring a graphical interface navigable via mouse and keyboard.