Inspiron 24-5475 AIO, CPU upgrade

Unless somebody says that they've installed the Ryzen 1400 in the 5475, only Dell will know for certain.

Even though the motherboard is the same in both the 5475 and the 7775, the question is whether they use the same version of  BIOS or not. BIOS determines compatibility with different CPUs, and unless the 1400 is supported in BIOS on the 5475, it's not going to work. 

The support page for the latest version of BIOS v2.14.1 for the 5475 only lists compatibility with this one model. So that doesn't answer the question whether it supports the Ryzen 1400.

If you plan to try this, it's probably a good idea to update to the latest version of BIOS before swapping CPUs, in case support for the 1400 was added along the way. A strong reminder that if the BIOS update fails, you'd have to replace the motherboard. And do NOT let Dell SupportAssist manage a BIOS update. Do it manually after reading the instructions on that page carefully, and disabling your anti-malware suite right before starting to run the update.

I checked the bios versions of the two PCs (5475 and 7775). The various versions of bios that have succeeded each other are common to the two PCs, that is, a single update that can be installed on both PCs, the versions are identical and in detail with compatible systems we read "for inspiron 24 5475 and inspiron 27 7775". Except the last version you indicated 2.14.1 which appears to be only for the 5474 and millet the post being started. in short, the two PC seem to update themselves simultaneously with the same bios and the same version.

For those interested: I installed the cpu ryzen 5 1400 instead of the a12 9800e, after updating the bios to the latest version available. After reinstalling Windows 10, everything works perfectly. The pc is much faster and stays pretty cool. Do not exceed 70 ° under stress. However the temperature for the same activity has increased by about 5 ° compared to the previous CPU. The idle temperature - one hour after switching on - is around 53 °.

The only "problem" is that in the bios the model is now referred as "Inspiron 27 7775" instead of "Inspiron 24 5475"...

Are the temperatures ok? Or are they excessive?

Hi Giustanca,

Which BIOS version you have? Any issues with Ryzen 5 so far? My BIOS is 2.14.1. Just wondering would 2nd or 3rd Gen Ryzen 5 would work also?

Regards,

Evaldas

I have the latest version of the bios (2.14.1). The PC works perfectly, no problems found about 2 months after the installation of the Ryzen 5 1400 CPU.
I don't know if the second and third generation Ryzen CPUs can work.
I was pretty sure that the Ryzen 5 1400 would work because the Inspiron 5475 (with a dedicated video card) practically uses the same motherboard as the Inspiron 7775, which only features Ryzen CPU 3/5/7 (but first generation).

Hey all, I have both the 5475 and the 7775.  My 5475 came with touch and an a12, no dedicated gpu (rx560).  I have a 7775 that has an 1800x in it now, originally had a 1700, but have also tried a 1600, all 3 work.  I have also tried a 2700x, doesn't work in either the rx580 board or the rx560.  I took the 5475 board out and put a board with a rx560 in.  I also put a 1600 in.  I chose the rx560 board because it has the touch controller and the connector for it, the rx580 board does not.  You will have to reroute the lvds cable (for the display) as it connects up higher, near the copper pipes for the heatsink (not where it does on the non dedicated gpu board, near the nvme).  Also you will need the heatsink for the rx560 5475, the stock one for the apu (a12) will not work as there is no cooling for the dedicated gpu.  Additionally, you will need a 330w power adapter, the 130w-180w will not work, they will boot to an error stating an incorrect ac adapter is being used.  I'm on the latest bios, but all 1st gen processors work in either dedicated gpu boards, ie ryzen 1200 - 1800x, regardless of bios revision.  I have tried all bioses, back to the initial release (also trying to get the 2700x to work with them, even going as far as putting the motherboard in diagnostic mode (via the jumper), its a no go.

There is a connector on both dedicated gpu boards for a subwoofer, 5475 doesn't have one, don't worry about it.  Also I used the heatsink for a 7775, in the 5475, bad idea, does not fit well, I had to dremel the back of the lcd housing to make it fit.  Also I had to use a copper shim for the gpu, because the rx560 gpu die sits lower than the rx580 an did not make good contact and overheated in about 10 seconds and shut the system down.  Also, the 7775 comes in 2 flavors, one with 3 copper heat pipes and one with 4, I used the one with 4.  You will not be able to attach the metal shield if you use the 7775 heatsink on the 5475, and the fan will be about an inch short of the heat fins too, and the fan is smaller on the 5475.  I would just use the heatsink that has cooling for the dedicated gpu that is designed for the 5475.  I wouldn't try to put a 1700, 1700x or 1800x in it though (unless you have the 7775 heatsink, and have modified the fan placement).  It will run fine up to a 1600.

 that we're limited to 1st gen ryzen.  The AGESA level does support 2nd gen ryzen with the latest bios, but dell chose to remove support for it, in their infinite wisdom.  I've dissected the Insyde bios a bit, it could be made to include 2nd gen ryzen, the code is there, but as far a implementing whatever dell did to block support for 2nd gen, I'm not sure, and I don't want to flash either of my systems with a modified bios (until they get a little older anyway).  also, Insyde bioses are notoriously difficult to work with and require a digital signature in order for the system to even attempt to be flashed.

Also, I have looked for a B350 insyde bios that supports 2nd (or even 3rd) gen ryzen and haven't had any luck.  If anyone knows of any model of b350 that has an insyde bios that supports newer processors, please let me know, we might be able to splice the bioses to add newer processor support. (if we can digitally sign the bios though, I have a few friend with skills :), just don't have the balls yet....