Is there a way to extend a PCI slot?

Can you rearrange the existing PCI boards that are in your system. ie sit all the small ones behind the CPU etc, and longer ones elsewhere - it makes no difference which slot a card goes into - the system will automatically correct configurations.
If by extend the slot you mean plug some kind of adapter into them to raise the socket higher, then no - to my knowlegde this is not possible, all cards have a metal attachment on their end, which would then be too long, or the wrong shape.

Smaller heatsink and fan?

Thanks.

Nope. The two slots with enough room are occupied with my 2D and 3D graphics cards... both too large to fit in the others.

I am looking at taking a broken PCI board and cutting off the long tab connector. Then getting hold of a PCI type slot and then joining them by soldering ribbon cable from one to the other.

I can then jury rig brackets in the ATX case to take the board.
I thought there might be an easier way.
Rgds.

If you can suggest a combo that is less than 10mm high, I am all ears.

I am looking at taking a broken PCI board and cutting off the long tab connector. Then getting hold of a PCI type slot and then joining them by soldering ribbon cable from one to the other.

I can then jury rig brackets in the ATX case to take the board. I thought there might be an easier way. Never mind.

Thanks anyway.