So i have my self a real special 486 tulip visionline TC35.

I would like to upgrade the S3 video memory from 512Kb to 1Mb

It is possible reading a old site:

| TC35 Video Memory Expansion |
| ---------------------------------------------------- |
| expansion | number | feet |
| of | to | DRAM chips | |
| ------- | ------- | ------------ | ----------------- |
| 512kb | 1mb | 4 * 4 * 256Kb | U65 to U68 |
----------------------------------------------

But my problem is the chips doesnt seem to be "normal" once hens the connection on the motherboard that i have attached, you see the extra pin U65-U68 under the iso card module, like if the chips should be standing up or what i should call it.