Question NEED TECH SUPPORT

[Mourning]

I just ordered a brand new pc, took some stuff out put some new parts in. When I go to boot from a windows 10 ISO or says BOOTMGR is missing and right below that reboot and select proper boot device, what the <Mod Edit>am I supposed to do to fix this ? (Note I tried with Linux and Windows ISO’s, none seemed to fix it)

 

[USAFRet]

Details needed.

Took out what, put in what...
Full parts list. Make/model/size of everything.

 

[Mourning]

Details needed. Took out what, put in what... Full parts list. Make/model/size of everything. BASE_PRICE: [+2045] CABLE: None CARE1: Ultra Enhanced Packaging Solution - Protect Your Dream System During Transit [+19] CAS: [RAZER EDITION] LIAN LI PC-O11 Dynamic ATX Mid-Tower Dual chamber Gaming Case w/ USB 3.1 Type-C, Tempered glass on the front & side [+60] CC: None COOLANT: None CPU: AMD Ryzen™ 9 5900X 3.7GHz [4.8GHz Turbo] 12 Cores/ 24 Threads 70MB Total Cache 105W Processor CS_FAN: 3X 120mm Case Fans for your selected case [+9] ENGRAVING: None FAN: CyberPowerPC DEEPCOOL Castle 240EX ARGB 240mm AIO Liquid CPU Cooling System w/ Copper Cold Plate [+20] (2 x Standard 120MM Fans) FREEBIE_CU1: Far Cry® 6 Bundle [+0] FREEBIE_VC1: 1-Year GeForce Now Founders Membership [+0] HDD: 240GB WD Green Series M.2 SATA-III 6.0Gb/s SSD - Seq R/W: Up to 540/460 MB/s, Rnd R/W up to 37/68k [-87] (Single Drive) HDD2: None HEADSET: None IUSB: Built-in USB Ports (Based on motherboard and case selection) KEYBOARD: None [-5] MEMORY: 8GB (8GBx1) DDR4/3000MHz Memory [-40] (Crucial Ballistix Sport) MICROPHONE: None MONITOR: None MOPAD: None MOTHERBOARD: GIGABYTE X570 UD ATX GbE LAN, 3 PCIe x16, 2 PCIe x1, 6 SATA3, 1 M.2 SATA/PCIe MOUSE: None [-3] NETWORK: Onboard Gigabit LAN Network OS: None - FORMAT HARD DRIVE ONLY [-60] OVERCLOCK: No Overclocking POWERSUPPLY: 850 Watts - GIGABYTE GP-P850GM 80 PLUS GOLD Certified Full Modular Active Power Supply [+52] PRO_WIRING: Professional Wiring for All WIRING Inside The System Chassis - Minimize Cable Exposure, Maximize Airflow in Your System [+19] RUSH: Standard processing time: ship within 3 to 4 Weeks. CyberpowerPC can not guarantee Christmas Delivery SERVICE: 3 Years FREE Service Plan (INCLUDES LABOR AND LIFETIME TECHNICAL SUPPORT) SLI_BRIDGE: None SOUND: HIGH DEFINITION ON-BOARD 7.1 AUDIO SPEAKERS: None USBHD: None USBX: None VIDEO: GeForce RTX™ 3070 8GB GDDR6 (Ampere) [VR Ready] (Single Card) WARRANTY: PREMIUM WARRANTY: Standard 1 Year Parts WARRANTY + ONE (1) YEAR SHIPPING [+19] WNC: None WTV: None _PRICE: (+2048) I added an 860 EVO, (didn’t take out the the other SSD) and a replaced the ram with 2x 16GB sticks of TitanZ DDR4 3600 speed memory. I also added another HDD Seagate Barracuda 3TB 3.5" SATA3 6.0GB/s 7200Rpm 64MB Cache Desktop Hard Drive

 

[USAFRet]

I added an 860 EVO, (didn’t take out the the other SSD) and a replaced the ram with 2x 16GB sticks of TitanZ DDR4 3600 speed memory. I also added another HDD
Seagate Barracuda 3TB 3.5" SATA3 6.0GB/s 7200Rpm 64MB Cache Desktop Hard Drive

What 860 EVO?
2.5" format or M.2 format?

 

[Mourning]

What 860 EVO?
2.5" format or M.2 format?

2.5” format, I’ve had it for like 2 years, and just never put it in any PC so it’s practically new

 

[SamirD]

I would put everything back to how it was when you got it and see if it boots or not--if not, call them to have them fix it.

 

[USAFRet]

Right.
Did this ever boot up?

Put it back together exactly as it came.
What happens?