Replace Power HP 980xa CTO 9810 9850 9851 9853 9855 9870 9871 power supply

Replacement PSU for HP Desktops

This unit replaces the original power supply in HP 980xa CTO systems and the listed 9810, 9850, 9851, 9853, 9855, 9870, 9871 models. It fits a standard ATX mounting pattern while using a reduced depth of 5.86 inches for tighter chassis clearance. The grey enclosure holds a single 80 mm fan and weighs four units. It targets owners of those specific HP desktops who need a direct swap.

Sustained Output and Electrical Stability

The supply delivers a continuous 280 watts across its rails with a peak rating of 420 watts. Output rails include +3.3 V, +5 V, -5 V, +12 V1, +12 V2, -12 V and +5 V standby. AC input accepts 110 to 220 volts at 47 to 63 hertz. Rise time stays below 70 milliseconds and hold-up time is at least 17 milliseconds at nominal voltage. Low ripple and noise are specified for stable operation under constant load.

Thermals, Noise and Power Draw

An 80 mm fan provides active cooling for long-term reliability. The reduced depth improves airflow paths inside compact cases. Hi-Pot testing and ROHS with CE marks confirm baseline safety compliance. The unit draws only the power required by the connected components up to its continuous rating. No further acoustic or thermal figures are provided by the manufacturer.