Which cap to replace kzg - Biostar AF4ST-A9

[bp1]

I have Biostar NF4st-A9 socket 939 motherboard which our kids use.
Its been working great for many years.
Recently when using, the PC just freezes randomly which then requires the power to be switched off to reboot.
Thought originally that the PSU was failing so tried with a spare PSU. When replacing the PSU i did notice that one of the KZG 3300uf 6.3v caps by the CPU looked very slightly domed on top.
Tried the spare good PSU to test and the same problem is there.
Pretty sure now that the caps near the cpu maybe bad.

The motherboard also has some 1500uf 16v KZG caps which appear to be ok.

I would be grateful for some advice on which caps to use to replace the 5 - 3300uf 6.3v and 3 - 1500uf 16v KZG caps. Basically looking for good quality caps to be purchased from badcaps.net to be shipped to UK.

I have done some re-caps before and do have the esrmicro v4 for testing when the old caps are removed.

Sorry about the poor photo. The domed cap is not shown as its the 5th cap which didn't show on the photo.

Many thanks