Hewlett-Packard has leapfrogged IBM to take the lead in the global server market after customers delayed buying Big Blue kit in anticipation of forthcoming product updates.
In Gartner's final first quarter numbers, HP grew server revenues 15.9% to $3.4bn and took 31.5% market share, as IBM declined 2.1% to $3bn and dropped to 28.4% market share. HP also consolidated its lead in terms of shipments.
"IBM fell from the number one spot, affected primarily by anticipated new products in both its mainframe and Unix lines," said Gartner.
At the end of the quarter IBM released x5 in the System x division, and in April it announced the next-generation Power 7 Unix box, with the full range to be released later in the year. The z Series is also due for an update in the second half of the year.
Revenue in the overall server market climbed 6% to $10.7bn, but has "not yet returned to the historical quarterly highs that were posted in 2008", said Gartner.
The market was driven by more than 32.1% growth in x86-based server revenues, while Risc/Itanium Unix server revenues fell 26.9%.
Dell and Fujitsu pushed up their revenues 35.5% and 7.8% respectively, but Oracle/Sun was unable to arrest the decline, dropping 38.7% in the quarter as its market share fell by nearly half to 5.6%.