Hi,
1.First of all make sure whether problem is HDMI Cable
OR HDMI Port(s) on TV or PC
OR something else.
2. HDMI basically takes HD VIDEO & AUDIO output from PC to TV. There may be other options/ports available on your PC & TV.
Just have a look on the Ports / options available on this TV.
(i) You can see what different options may be available ( for eg. in the above image for TV : Video 1, Video 2 , HDMI 1, HDMI 2, PC, etc. ). Same way look on/for your PC options/ports. You would need to explore it yourself or with someone who has physical access to your PC,TV, etc.
Google may come good.
If you provide me exact make & model of your TV, PC, MotherBoard, etc. i can look into the online manuals for your devices ( if available ). If you manage to get some very fine snaps of ports on your devices, i may try to help you but it is hard from distance.
(ii) Some options may only work for Video output for eg.
Video ports would not take the Audio from PC to TV. You may use audio options available with your PC itself or use available Audio input/output options available with your PC, TV and/or other AUDIO devices.
(iii) You may be / may not be happy with HDMI alternatives but at least we can collect some information & try some troubleshooting if video output is available.
(iv) I am just looking in the options if your HDMI port(s) on the PC are gone. I think you can install new HDMI ports depending on your MB options.
(v) If you are planning to buy a complete replacement, a Desktop Monitor is just enough but make sure that it includes effective connection options other than HDMI.
(vi) And yes 25 GB hard disk is too small to run windows without any problems. Is it 25 GB or 250 GB ?
Thanks & Regards. ...