Имам абсолютно същия процесор, ама рамта мие 2 GB.
По темата: не играя ЦС Сорс и не мога да помогна, само ЦС 1.6 от време на време.

Resolving paged pool memory issues
If you have determined that your system is using too much paged pool memory, you can resolve the issue by closing processes that are using paged pool memory. You may determine which processes are using paged pool memory by watching the Paged Physical value as you close a process. Make note of those that result in the Paged Physical value dropping. Anti-virus and security applications are known to use large amounts of paged pool memory and will not release the memory when the game calls for it, resulting in a crash. Printer software/drivers have also been known to use a significant amount of paged pool memory at times.