PC freeze when disc ( CD / DVD) inserted

The most common things I find are addons like CD/DVD emulators, torrents and infections. The other times its a failed drive.

Recently I changed my motherboard-asus ,processor-amd athlon to gigabyte GA J 1800M D2P N so it worked earlier with Asus.
But system does not freeze if I do not insert disc to DVD drive and it may be noted that after pc freeze if I eject disc from driver, disc comes out but computer remain freeze till I press restart.

How to go about it pls guide.

It sounds like you might not have the right CD/DVD driver. If you remove from Device Manager and reboot, Windows will install a new one. Also see if there's a CD/DVD driver that came with your motherboard.
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Good luck.

When we change the motherboard the drivers and OS may or may not work. I treat it like a new PC and install the motherboard drivers at the very least. How is on the web and your motherboard maker's install instructions.

pls read my earlier post where i clearly mentioned that i had changed my motherboard from asus to gigabyte which is not the same that I had earlier.
I need not to give much explanation to tech guy for a complete whole new motherboard of different company ( gigabyte and not asus I had earlier) so obviously it won't work with installed OS in HDD, must be formatted setting up new OS along with installing driver of new board.

That's it.

That tells us there is some incompatible setting or hardware in the mix.

You replied there is a PATA drive. That's not good either as most are so old and failing.

I kid you not. I can't know how many PCs you've worked on and I'm not there to check your work. Plus, once in a while you get members that want more than a free forum can offer. I may miss a detail here and if that upsets you I apologise.

So after all this, it's a bit of a mystery but mixing PATA and SATA has so many prior posts that I'm going with you've gone down a road full of traps and pitfalls. Fix? Decide if this is worth fixing. Just last week I picked up a shiny 240GB SSD (on SATA) for 80 bucks.

PATA is easy sometimes to be one row of pins off when installing the cable. Also have to have set for Cable Select if supported, otherwise Master/Slave.

So, important on which is being used.

pata. there is nothing like cable selector

I don't know which cable you are using. I don't know if you have more than one HDD, or if the HDD you are concerned with shares the PATA data cable with a CD/DVD drive.

PATA drives can be set for Master, Slave or CS (cable select). If set for CS, then it needs the 80 wire cable. If using Master/Slave settings, then either cable (40 or 80 wire) can be used. The plug on 40 wire used will not matter so long as you have one drive set as Master (using it's jumper pins on end of drive) and any other drive set as Slave. When using the 80 wire cable for Master/Slave instead of CS, you MUST put the master plug on the drive set as Master and the slave plug on the Slave drive. The plugs on such cable are black and blue. The end plug is the Master, the middle plug is the Slave. If you have 2 IDE ports on the motherboard, and use 40 wire cable, then both drives can be MASTER on each IDE port.

https://en.wikipedia.org/wiki/Parallel_ATA

be sure the red stripe on cable is always on the number one pin side of the drive and the IDE port.