MSI's "built to be perfect" GeForce RTX 5090 Lightning Z design was heavily showcased at CES 2026 , with press material referring to an unusual 2500 W "Extreme Performance OC" (XOC) BIOS. At the time, it was rumored that an official file had been issued exclusively to professional overclockers. Weeks later, said XOC BIOS has seeped out onto the net—as of this afternoon, the TechPowerUp VGA BIOS collection contains this release (also leaked on the Overclock.net forum). As outlined during the January Las Vegas trade event ( and since ), experts surmised that LN2 (liquid nitron)-based cooling would be essential in tempering the card's supposed extreme modes of operation. TechPowerUp's resident graphics card reviewer, W1zzard, did not delve into world record-breaking activities when evaluating MSI's ultra flagship model. The card's "800 W out of the box" power limit should be sufficient for most mortals who can afford the audaciously official $5090 MSRP. Fresh news reports have tracked wild fluctuations in price; going as high as $14,000.

Jonathan Alva, an Indonesian extreme overclocker and YouTuber, has run several GeForce RTX 5090 Lightning Z experiments. A past weekend video upload mentions a consulting role as part of the MSI Lightning Z model's development. Unfortunately, a recent session—involving the aforementioned 2500 W XOC BIOS—has resulted in the cracking of the first sample's "Blackwell" GB202-300-A1 GPU die. Despite the leveraging of a custom LN2 solution, in collaboration with the ARX (arxidmedia) lab, a probable thermal shock incident ended the GPU's existence. It is suspected that an outdated version of the firmware caused too much voltage to be sent within a short frame of time. Thankfully, Alva can continue his "just an average overclocker" adventures with another prototype board, as well as three finalized retail units.