Question Upgrade PSU for Dell XPS 8300

[geoffbates]

I have an aging XPS 8300 which has been upgraded over the years. I am trying to replace the AMD Radeon HD 6700 video card with an Arez Expedition Radeon RX570 to run my 3 monitors; I believe the 6700 is overheating and locking up the system. The original DELL PSU has only a six-pin VGA connector, whereas the Arez requires 8-pin.

I am willing to replace the PSU with a more up-to-date one with the required connectors. What is my best choice? How do I even tell what will fit?

Thank you

 

[punkncat]

Be aware that some XPS motherboards are BIOS locked to a specific set of GPU. IIRC that is the i7 2600 model, yes?

 

[emilianojn]

Hi, Punkncat is right. I have a Dell XPS 8300 as well and I did buy a Radeon RX 570 and it doesn’t work. PC just won’t boot. After lots of research, what happens is that BIOS is limited to a whitelist of GPUs. I’m trying to work around the problem, but most likely I will have to change the GPU. Apparently GeForce GT and GTX 10xx cards are whitelisted.
So my advice to you (I am not a pro or whatsoever) as a regular user is to not buy that awesome GPU for this computer.

 

[punkncat]

In regards to this, it will be locked to three specific models that Dell offered for sale. Nothing else will work with that motherboard.

You could attempt to find a motherboard that will fit the case and the form factor, but as I recall they also made that non standard. My suggestion would be to see if you could locate a used PC with a decent motherboard and case using something like a second gen i5 and swap your proc in.
At the time that I ran into this issue some years ago now, it was more difficult finding something like that to suit my needs than it was to buy and build a whole new system.
The i7 chip should still sell on the used market for a few dollars, but that window is rapidly closing with age and the ready abundance of inexpensive and capable AMD Ryzen 1st gen chips.