Windows 7 BSOD System_Service_Exception and Memory_Management

[Ryangd2]

Hi guys, I've recently re-installed windows 7 home premium on a computer I built and have been getting these two BSODs pretty often. They happen randomly though, so I have no clue what causes them. I cleared my system files pretty recently so there's only one dump file. I can upload more when they happen.

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[Ryangd2]

Got another blue screen, MEMORY_MANAGEMENT

Edit: And another.

 

[Ryangd2]

Just got one more, a different one this time, PFN_LIST_CORRUPT BCCode 4e, here's the dump file.

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Would really appreciate help on this, thanks.