Borrow/Rent Epyc CPU

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grsychckn



Joined: 23 Mar 2018
Posts: 15
Location: Stafford, VA

PostPosted: Tue Feb 26, 2019 4:20 pm    Post subject: Borrow/Rent Epyc CPU Reply with quote

I've got 5 Epyc ES CPUs and two Supermicro H11DSi motherboards. The boards will power up and fans will spin but not POST. I downloaded the BIOS version that supposedly works with these CPUs, but I need a known-good/compatible Epyc CPU to use in order to downgrade the BIOS and see what the highest version is I can use with these CPUs. If anyone is willing to lend me a CPU I would gladly pay you - even put a deposit down while I have it.

I'm designing a custom case that will house an open loop for the dual 32-core Epyc CPUs and I'd like to be able to know whether the CPUs work. Any help is appreciated!
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wren4777



Joined: 13 Dec 2016
Posts: 571
Location: Litija, Slovenia

PostPosted: Tue Feb 26, 2019 4:42 pm    Post subject: Re: Borrow/Rent Epyc CPU Reply with quote

You may be able to use an SPI flasher to downgrade the BIOS without a CPU.

https://www.win-raid.com/t4287f16-GUIDE-The-Beginners-Guide-to-Using-a-CH-A-SPI-Programmer-Flasher-With-Pictures.html

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grsychckn



Joined: 23 Mar 2018
Posts: 15
Location: Stafford, VA

PostPosted: Thu Mar 21, 2019 12:21 pm    Post subject: Re: Borrow/Rent Epyc CPU Reply with quote

linuxfanatic wrote:
You may be able to use an SPI flasher to downgrade the BIOS without a CPU.

https://www.win-raid.com/t4287f16-GUIDE-The-Beginners-Guide-to-Using-a-CH-A-SPI-Programmer-Flasher-With-Pictures.html


Thanks for the recommendation. I was seriously thinking about doing this and then I got my hands on a set of 7551s to test. Ended up discovering that the ES CPUs I have work but that the memory I bought wasn't installed correctly (either in the wrong slot or not fully installed). Either way it was my fault but I'm glad I was able to test using good CPUs.
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