SGI’s new CEO has wasted no time performing a major shakeup at the server company. Moves announced today include substantial layoffs, executive departures and SGI’s plans to tweak its server business. SGI will fire close to 12 per cent of its workforce – 250 staffers – in the hopes of saving some extra cash. Word of the layoffs arrives just about a month after SGI moved former CEO Bob Bishop aside and tapped Dennis McKenna as its new chief. SGI heralded the layoffs as proof of McKenna’s quick, decisive action, issuing a statement titled ‘CEO Delivers Aggressive Changes in First 30 Days as Part of Turnaround.’ The Inq speculates about nVidia buying SGI’s graphics dpt. Update: Couldn’t resist.