my son have try to upgrade the cpu installing one new Intel Pentium Dual-Core 3.2 GHz CPU E6700 Slguf LGA 775 2 MB Cache.
After installation the pc fail to load. no bios menù, no messages from pc.Same problem after reinstalling old CPU.My son tell me no cpu pin are damaged.
What may have happened ?
Thank you for any suggestion.
Apologies for missing your post. First, read through the Precision 390 Owner's Manual for the step by step instructions on how to install the CPU. Perhaps your son missed a step. Then read this on using the "RTC reset jumper" to clear the NVRAM.