我的电脑用主板用硕泰科478 intel 845pe 能用什么样的cpu与之向配呢

只要是478插脚的INTEL的CPU都可以，但只换CPU效果未必很好，因为这种型号的主板也有点过时了。
建议你换2.0G以上的CPU,加大内存,升级显卡,如果还是不行,换865PE的主板.

Intel® Pentium® 4
Extreme Edition 3.40 GHz 800 MHz 512 KB
2 MB (L3) P13 or greater The following board revisions (AA numbers) support these processors:

C27650-209 or later
C27646-210 or later
C26719-211 or later
C27648-208 or later
C40926-202 or later.

3.20 GHz 800 MHz 512 KB
2 MB (L3) P13 or greater
Intel® Pentium® 4 3.40E GHz 800 MHz 1 MB P13 or greater
3.20E GHz 800 MHz 1 MB P13 or greater
3E GHz 800 MHz 1 MB P13 or greater
2.80E GHz 800 MHz 1 MB P13 or greater
2.80A GHz 533 MHz 1 MB P13 or greater
2.40A GHz 533 MHz 1 MB P13 or greater
3.40 GHz 800 MHz 512 KB P13 or greater All board revisions support these processors
3.20 GHz 800 MHz 512 KB P06 or greater
3 GHz 800 MHz 512 KB P06 or greater
3.06 GHz 533 MHz 512 KB P04 or g