UPDATE 1-Temasek unit evaluates stake in Singapore Computer

(Adds details of Temasek's holding)

SINGAPORE, Aug 22 (Reuters) - Singapore Computer Systems SCSS.SI on Friday halted trading in its shares as its biggest shareholder, Green Dot Capital, a unit of state investor Temasek [TEM.UL], is evaluating its stake in the computer services firm.

Temasek Holdings owns about 65 percent of Singapore Computer, whose businesses include the provision of IT infrastructure, systems integration and business continuity management services.

Singapore Computer earlier this month reported an 86 percent rise in second-quarter net profit to S$4.3 million ($3.1 million) on revenues of S$96.5 million. The firm also said its order book stood at a record high of S$720.1 million.

Shares of Singapore Computer rose 3.9 percent to S$1.34 before trading was halted. (Reporting by Kevin Lim; Editing by Jan Dahinten)