MORRISVILLE, N.C. — The turmoil of Lenovo’s restructuring has now struck the adopted home city of William Amelio. Singapore will no longer be headquarters for the Asia-Pacific operations of the world’s No. 4-ranked PC-maker.

Singapore’s Asia One news Web site reported Tuesday that Lenovo will shift the regional HQ to Beijing as part of a consolidation involving Lenovo’s operations across Asia and Russia. An undisclosed number of people will be laid off, Asia One said.

The consolidation doesn’t come as a surprise, given that Lenovo is laying off some 2,500 people, or 11 percent of its work force. The company is looking to save costs across the board, including slashing executive compensation by as much as 50 percent, as it reels from the double whammy of declining profits and shrinking global market share.

Singapore’s loss also means Lenovo is pouring more of its attention into the home turf, where it has more than 30 percent of market share. Born in China, Lenovo now may survive by returning to its roots.

But as Chinese media make clear, Lenovo’s future remains cloudy. In a scathing assessment by ChinaStakes.com, Lenovo remains hobbled by what the Web site calls a “botched integration” of cultures and styles dating to 2005, when Lenovo bought IBM’s PC division.

“Aside from pressures from the global financial shake-out, unsuccessful internal integration and an ambiguous market strategy are the main culprits,” ChinaStakes said Tuesday.

The integration refers to the melding of corporate managers from Lenovo, IBM and Dell, the latter group led by Amelio and a hand-picked cadre of former Dell executives he brought on board shortly after Lenovo closed the IBM acquisition for well over $1 billion.

Other media also have noted that the competing management styles have hampered Lenovo’s efforts to grow globally.

“Three years have passed, and still the cultural conflict has not been resolved,” ChinaStakes said. “Other Chinese enterprises have encountered similar problems with their overseas M&A, but in this case, at least, the problem is not language-based, as [Chairman] Yang Yuanqing speaks fluent English.” Yang also maintains a home in the Triangle.

The reorganization leaves the former Dell execs “seriously weakened,” ChinaStakes added. In fact, two of the former Dell managers are leaving as part of the shakeup.

“Lenovo is also moving its market center back to Asia Pacific, finally approving its former strategy and possibly putting an end to its culture conflict,” the publication added.

As for the “ambiguous market strategy,” Lenovo spent who knows how much (hundreds of millions?) in sponsoring the past two Olympics, Formula 1 racing, the NBA, World Cup Soccer and other events. But its offensive to win global consumer sales has not been overly successful. Lenovo is shipping more PCs, but is falling farther behind HP, Dell and Acer in market share.

Will the reorganization work? That remains to be seen.