Dual Boot after Upgrading...

[Eli Apostolidi]

Hi everyone! I will be upgrading my ancient Phenom 965 to a i5 8400, with a z370 mobo and 16gb Ram.
I currently have dual boot xp/7, each in a separate HDD.
Question is: After installing and boot up, will both OS's be instantly recognized (and ask me which one i choose, like it is now)?
If xp are not recognized, boot manager (which is in the old HDD)wont be recognized, right? Then what?

Many thanks for reading this far!

 

[13thmonkey]

You really need to reinstall both after a hardware change of that size.

 

[Eli Apostolidi]

I see...So, how do i reinstall? Do i have to format the HDD's before upgrading the hardware? Or, after putting the new parts, PC doesn't see any OS and i put Win 7 DVD in Optical drive?
Again, many thanks!

 

[13thmonkey]

Are you adding a new drive? This would be easiest, in which case with only the new drive installed, insert win 7 disk and let it get on with it. There is a very good chance that win 7 will not like the latest processors, they officially only support win 10.

 

[Eli Apostolidi]

I was thinking of NOT adding a new drive in order to cut the cost down, just use the "Win 7 now HDD" ( and throw away the Win XP HDD)... WIn 7 HDD is a relatively new 2TB drive, so if possible i'd like to keep it.
Another parameter is i5 8400 no liking WIn 7 !!! Didn't know that! Is it certain or it depends?

 

[13thmonkey]

http://www.makeuseof.com/tag/windows-7-wont-work-intels-current-next-gen-cpus/
https://pcpartpicker.com/forums/topic/245072-coffee-lake-and-windows-7

The chipset has little support in win7, so getting it started is difficult.

 

[Eli Apostolidi]

Ohh God... And there i was, thinking how to make Win XP work with Cofee Lake...
Many thanks! I am currently thinking of keeping existing PC, give it to wife and buying a new one...