Upgrade ACPI 1.0 to 2.0 for PowerNow? I've got two working Arima HDAMB boards with dual Opteron 244 1.8GHz and 248 2.2GHz, and I used Phoenix BIOS Editor (PBE) to insert a Dell SLIC 2.1 successfully. Recently I purchased four dual-core 280's but the BIOS lacks ACPI 2.0 support (which is required for PowerNow support). Without the PowerNow support, these Opterons are going to heat my house. http://www.flextronics.com/computing/support/server/Product/ViewProduct.asp?View=HDAMB Now onto my questions regarding using the BIOS of a very similar motherboard, the Tyan Tiger K8W S2875 with an AMI BIOS. http://www.tyan.com/support_download_bios.aspx?model=S.S2875 1. Is it possible to force a flash to overwrite the Arima's entire BIOS chip (including bootblock) with the Tyan's AMI BIOS?...both are 4Mbit flash chips. 2. I haven't compared the brands of the flash chips used in both boards, but are the pin-outs of 4Mbit flash chips the same? Would I be better off trying to get a Tyan flash chip from here? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=380116815447&ssPageName=STRK:MEWAX:IT 3. Am I crazy for even thinking about this?