Collateral for the Stratix IV GX FPGA Development Kit needed

Thanks for your response. Note that the Terasic link you provided if for the TR4 which is a different board.

Although the "Stratix IV GX FPGA Development Kit Board" was made by Terasic (https://www.terasic.com.tw/cgi-bin/page/archive.pl?Language=English&CategoryNo=138&No=750&PartNo=4#contents), it appears to have been in close cooperation with Altera. The board resources were hosted on Altera's website (https://www.altera.com/products/boards_and_kits/dev-kits/altera/kit-siv-gx.html). If you look at the linked Terasic page, you'll see that the "Kit Installation" link points to the link above.

Here is the most recent capture of the support page in question from archive.org:

https://web.archive.org/web/20171130021953/https://www.altera.com/products/boards_and_kits/dev-kits/altera/kit-siv-gx.html

Here are links to the needed files on the former Altera FTP site (extracted from the archive.org capture).

ftp://ftp.altera.com/outgoing/devkit/91/stratixIVGX_4sgx230es_fpga_v9.1.0.exe

ftp://ftp.altera.com/outgoing/devkit/91/stratixIVGX_4sgx230_fpga_v9.1.2.exe

ftp://ftp.altera.com/outgoing/devkit/11.1/stratixIVGX_4sgx230_fpga_v11.1.0.exe

ftp://ftp.altera.com/outgoing/devkit/10.0/stratixIVGX_4sgx530_fpga_v10.0.1.exe

ftp://ftp.altera.com/outgoing/devkit/11.1/stratixIVGX_4sgx530_fpga_v11.1.0.exe

I've actually contacted Terasic asking for the files and they directed me to ask here. I think this recommendation is correct since the required files were hosted on ftp://ftp.altera.com/...

Thanks!