A10-8770E Question

A

Andrew_Carr

2[H]4U
Joined
Feb 26, 2005
Messages
2,777
So I'm having trouble with a new build using an A10-8770E APU. No matter what I try, nothing powers on at all. I've tested the brand new seasonic PSU with the simple jumper test and it works, and I've swapped motherboards as well and tried bypasssing the power button and just jumping the pwr on leads. But in all scenarios nothing turns on at all, the CPU fan doesn't spin, the PSU fan doesn't spin, no lights come on, etc. It's kinda odd, so I thought that maybe even though this APU is supposed to be AM4 compatible, since it's apparently an OEM processor only, maybe that's the cause of this? I don't really want to buy a more expensive processor but I'm thinking it must be the problem. Does anyone know more about these? I haven't been able to find much online. I was expecting to maybe have to flash the BIOS, but I thought at least I'd be able to boot into the BIOS.

Motherboards I've tried:
MSI B450 Tomahawk Max AM4 (https://www.msi.com/Motherboard/b450-tomahawk-max)
MSI x470 gaming plus max (https://www.msi.com/Motherboard/X470-GAMING-PLUS-MAX.html)

PSU: SS-850KM3
(tested with nothing except CPU plugged)

Processor info:
https://www.cpu-world.com/CPUs/Bulldozer/AMD-A10-Series PRO A10-8770E.html

RAM: Cheap DDR4
 
I am sorry to tell you this, but none of the 400- or 500-series chipsets support Bulldozer at all. That A10-8770E APU was based on the Bulldozer-derived architecture rather than the Zen-derivative architecture. As such, the AM4 Bulldozer-derived APUs are only compatible with a motherboard that uses a 300-series chipset, such as the B350.
 
yup^^

1615087845665.png
 
Just to add a bit they had to drop support to fit the supported chips into the bios memory. Although I fell like a few of the b450 mobos had early support with release bioses, but were dropped for the 3xxx series chips. Example : https://www.asrock.com/mb/AMD/Fatal1ty B450 Gaming-ITXac/#BIOS if you look at 3.2 Raven Ridge is supported. Edit... nevermind bristol ridge is the bulldozer core chips ... so yeah above...
 
E4g1e said:
I am sorry to tell you this, but none of the 400- or 500-series chipsets support Bulldozer at all. That A10-8770E APU was based on the Bulldozer-derived architecture rather than the Zen-derivative architecture. As such, the AM4 Bulldozer-derived APUs are only compatible with a motherboard that uses a 300-series chipset, such as the B350.
Click to expand...
Darnit. Thanks for the help. Looks like I might as well just exchange this motherboard tomorrow.
 
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