YouTuber mryeester tested dry ice as a CPU cooling method on an HP Omen Max 45L gaming PC equipped with a Cryo Chamber cooling system, according to PC Gamer [1].
Placing dry ice directly on top of the PC’s all-in-one (AIO) cooler reduced the CPU idle temperature from 43 °C at stock to 37 °C, matching the effect of regular ice[ s1]. When mryeester put dry ice inside the HP machine’s lower Cryo Chamber, the idle CPU temperature dropped further to 34 °C, beating the regular ice result [1].
The temperature improvements translated to a modest increase in gaming performance. In a Cyberpunk 2077 benchmark, the PC ran at 157 frames per second (fps) at stock settings and improved to 159 fps with dry ice cooling [1]. The slight boost indicates better thermal efficiency from the dry ice setup.
Mryeester’s experiment demonstrates that dry ice can enhance cooling beyond the PC’s built-in system but yields only minor gains in frame rates for demanding games. The use of a specialized chamber for dry ice placement shows potential for integrating extreme cooling methods into commercial gaming PCs.
Further tests or comparisons may explore long-term effects or performance during sustained loads, but the current results establish a baseline for dry ice cooling on the HP Omen Max 45L.
The experiment was reported on May 5, 2026, with results available from PC Gamer [1].
