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Black mid-tower desktop with LCD liquid cooler and RGB lighting

HP

HP OMEN 45L B91WJAA#ABA Gaming PC Core Ultra 9 285K RTX 5090 32GB 64GB DDR5-5600 2TB NVMe

SKU CH-9833-FVTQB MPN B91WJAA#ABA

Gaming desktop with Intel Core Ultra 9 285K, 64GB DDR5-5600, NVIDIA RTX 5090 32GB GDDR7, 2TB NVMe and 360mm LCD liquid cooler

  • Release Year2025
  • TypeGaming & Entertainment
  • Form FactorDesktop
  • AI FeaturesAI Accelerated
  • UsageConsumer / Gaming
  • ColorBlack
  • Intel Core Ultra 9 285K 24-core CPU delivers extreme processing power
  • NVIDIA GeForce RTX 5090 32GB GDDR7 graphics enables advanced AI and ray tracing
  • 64GB DDR5-5600 memory provides high-speed multitasking headroom
  • 2TB PCIe NVMe Gen4 SSD offers rapid game and file loading
  • 360mm LCD liquid cooler maintains thermal performance under heavy loads

Built for extreme gaming

The HP OMEN 45L desktop pairs an Intel Core Ultra 9 285K 24-core processor with an NVIDIA GeForce RTX 5090 32GB GDDR7 graphics card. It includes 64GB of DDR5-5600 memory and a 2TB PCIe NVMe Gen4 SSD. A 360mm LCD liquid cooler manages thermals inside a tool-less chassis designed for straightforward component swaps.

Suits 4K creators and AI developers

This system targets users who need maximum single-GPU graphics memory and high core counts for rendering, simulation or local AI workloads. The 32GB frame buffer and 64GB system memory handle large datasets without paging. Buyers who only play at 1440p or rely on cloud compute will find the specification excessive for their workflow.

Verify case clearance and power budget

The 360mm liquid cooler requires a mounting location that accepts a 360mm radiator. Confirm your power supply delivers sufficient PCIe connectors for the RTX 5090 and that the motherboard provides an M.2 slot wired for PCIe Gen4 to retain the SSD’s rated speed. Windows 11 Pro is pre-installed.

Points forts

  • Intel Core Ultra 9 285K 24-core CPU delivers extreme processing power
  • NVIDIA GeForce RTX 5090 32GB GDDR7 graphics enables advanced AI and ray tracing
  • 64GB DDR5-5600 memory provides high-speed multitasking headroom
  • 2TB PCIe NVMe Gen4 SSD offers rapid game and file loading
  • 360mm LCD liquid cooler maintains thermal performance under heavy loads

Caractéristiques

BrandHP
SeriesOMEN
ModelOMEN 45L
Part NumberB91WJAA#ABA
Release Year2025
TypeGaming & Entertainment
Form FactorDesktop
AI FeaturesAI Accelerated
UsageConsumer / Gaming
ColorBlack
ProcessorIntel Core Ultra 9 285K
Processor Main Features64 bit 24-Core Processor
Memory64GB DDR5-5600
Storage2TB PCIe M.2 NVMe Gen4 SSD
GraphicsNVIDIA GeForce RTX 5090 32GB GDDR7
Ethernet2.5GbE LAN
Wireless Card2x2 Wi-Fi 6E
Cooling System360mm LCD Liquid Cooler
Operating SystemWindows 11 Pro
CPU TypeIntel Core Ultra 9 285K (3.2GHz)
Installed Qty1
CPU NameIntel Core Ultra 9 285K (3.2GHz)
CPU Base Frequency3.20GHz
Turbo Frequency5.7GHz
CPU Socket TypeFCLGA1851
CPU Main Features64 bit 24-Core Processor
GPU/VGA TypeNVIDIA GeForce RTX 5090 32GB GDDR7
GPU Memory32 GB GDDR7
Virtual Reality ReadyYes
Memory Capacity64GB DDR5
Memory SpeedDDR5 5600
Memory Slot (Total)4
Memory Slot (Available)0
Maximum Memory Supported128 GB
SSD2TB NVMe
LAN Speed2.5Gbps
WLAN2x2 Wi-Fi 6E 802.11ax
WiFi GenerationWi-Fi 6E
BluetoothBluetooth 5.3
Case TypeATX Tower
Front USB2 x USB 3.2 (GEN 1 TYPE A)
2 x USB 2.0 (Type-A)
Video Ports1 x HDMI, 3 x DisplayPort
Poids d’expédition25.86 kg
Dimensions du colis686 × 610 × 330 mm

Questions sur cet article

What display connector does the RTX 5090 graphics card need for 32GB GDDR7 output?

The RTX 5090 uses standard DisplayPort and HDMI ports. Connect a compatible monitor cable to one of those ports on the rear I/O panel.

Will the 2.5GbE LAN port negotiate down to my existing 1GbE switch?

Yes, the 2.5GbE LAN port auto-negotiates to 1GbE when connected to a slower switch or router.

How can I confirm the 360mm LCD liquid cooler is running after first boot?

The LCD screen on the cooler block displays real-time coolant temperature and pump speed once Windows 11 Pro loads.

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