I have an issue with Palit 8400GS 256MB PCI-E and MSI 945GCM 478-L.
Those two worked together fine until one day. PC simply couldn't turn on. Coolers starts, then they stop, then they start again. I can't check which boot error occurs since boot speaker is not working. Weird is that GC works with every other MB (compatible), and any other GC works on MB.
I am grateful for any explanation that doesn't involve gremlins.