** Shares of AI chip maker Super Micro Computer SMCI.O fall 9.58% to $42.86 premarket after it misses quarterly profit and revenue estimates due to delayed graphics processing unit (GPU) rack deliveries tied to design changes

** Co posts Q1 revenue of $5 billion, below analysts' estimates of $6 billion, per data compiled by LSEG

** CEO cites complexity of new GPU racks requiring "intricate integration, testing, and validation"

** J.P. Morgan says AI server leaders are sacrificing margins to win large deals, limiting profit upside

** SMCI raises FY revenue forecast to at least $36 bln, up from previous $33 bln; expects Q2 revenue of $10 bln–$11 bln, above est of $7.83 bln

** Stock up 55.81% YTD, as of last close

(Reporting by Tharuniyaa Lakshmi in Bengaluru)

((tharuniyaa@thomsonreuters.com))