Acer Aspire 5315
From Computing Classics Wiki
Acer Aspire 5315 is a laptop model introduced by Acer in 2008. At the time, it was targeted to the higher end budget market. The laptop is a very minor upgrade from the Aspire 5310, having only a newer generation CPU as well as improved graphics.
Despite being introduced in Windows Vista Service Pack 1's lifetime, the device ships with Windows Vista RTM (build 6000). It is likely this is the case due to using the same image as other laptop models, with only different drivers and software (depending on the region, presumably).