我想买HD7750 但是HD7750是PCI-E 3.0 我的妈妈板只是 PCI-E 1.0
所以我应该买下7750吗?处理器是Pentium Dual Core E5400..
还有,我的desktop现在的PSU只是450w,如果要装HD7750需要upgrade PSU吗?
谢谢大家。
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