Recnognize PCB (???)

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ALPHABiT

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Does anyone can help me to understand what is this card on kickstart ?
Why 2 eprom per Kick ?
Ty.
 

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Tryied to remove. Wont come up. :(
Eproms upside are 28pins. Socked under-standing is 40, of course.
 
27C512 = 8-bit 64K per EPROM. In a 4x4 setup it gives you 128Kx16, or 256K. One would not only split the image into even/odd byte, one would also split the resulting 128K into high and low 64K.
 
Thanks.
I solved the removing problem, there was a screw hided under an eprom and fixed to motherboard (!!!).
But do you think i can find 1.3 and 3.1 kickstart in that eprom format ? Because i'm looking for a switch and thoose 2 kicks
 
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