Hello Everyone,

I have recently acquired a Optiplex 755 DT.

Its owner had not used in years, I recently booted it up for the first time (after many years, probably, considering the CMOS battery had died) and it's running Windows 7 x64.

It has a E2160 1.8 Ghz Dual Core Pentium (LGA775), 2x1 GB of 667Mhz DDR2, Integrated GMA graphics and a HDD (I haven't checked its size, yet).

I'm planning to install an ATI HD 5450 512MB (as video playback is quite problematic on the integrated graphics), maybe a cheap 120GB SSD as well as replacing the CMOS battery.

However, I'm not sure what to do with the CPU and RAM. This computer is supposed to be an office PC, but an old Dual-Core singlethreaded Pentium will suffer for sure in Windows 10, which is the OS I'm planning to upgrade to.

Therefore, I'm thinking of getting a Core 2 Quad for cheap on Ebay, but what model will work fine with motherboard?

2 GB RAM is also simply not enough for Windows 10 - 2x2 (4) GB could be considered to be barely enough for Windows 10 and of course, the SSD will make the page file use not as painful as with an HDD and significantly boost boot times, but 4 GB isn't much, even for Office. Maybe 4x2 (8) GB would be more reasonable - albeit more expensive.

Office work and video streaming at 1080p should be the goal of the upgrades, aswell as faster boot times and general OS responsiveness. Gaming is obviously out of the equation for this PC.

 

So, what C2Q model should work fine with the Optiplex 755 DT, and 2x2 or 4x2 GB RAM? The owner probably doesn't want to shell out too much money for a 13 year old PC anyways (max 100 bucks).

 

Thanks!