5700 XT on a Legacy board

[danielsuarez369]

Hello there!

A friend of mine accidentally bought a 5700 XT and has a M5A78L-M PLUS/USB3, a Legacy only board as far as we can tell (someone please confirm this), unfortunately when he tries to boot he gets a black screen then it shuts down, I assume this is because of the board being Legacy only, since a 1050ti works just fine.

Any help is greatly appreciated!

[miagisan]

Wattage difference between a 1050ti and 5700xt is pretty substantial. I would check the power supply first. PCI-E are backwards compatible, regardless of the board (could try a bios update though).

[danielsuarez369]

Just now, miagisan said:

Wattage difference between a 1050ti and 5700xt is pretty substantial. I would check the power supply first. PCI-E are backwards compatible, regardless of the board (could try a bios update though).

PSU is 850w unfortunately

[miagisan]

850w doesnt mean much, if its a craptastic power supply.

[Vishera]

I have an AM3+ motherboard myself and have no problems using modern graphics cards,

Did he connect the power cables to the GPU?

 

Also he will have major bottlenecking,considering i have an overclocked high-end AM3+ CPU and i bottleneck with a significantly less powerful GPU.

[danielsuarez369]

3 minutes ago, miagisan said:

850w doesnt mean much, if its a craptastic power supply.

EVGA 850 Bq

 

Just verified the person is on the latest bios

[danielsuarez369]

2 minutes ago, Vishera said:

Did he connect the power cables to the GPU?

Yep, and I believe the issue is not that it's AM3+ but that it's legacy only, hopefully someone can help

[miagisan]

its not. I have the have that motherboard, i see no reason why it wouldnt work. 

[Vishera]

1 minute ago, danielsuarez369 said:

Yep, and I believe the issue is not that it's AM3+ but that it's legacy only, hopefully someone can help

I just saw this one has integrated graphics o_O

I have never seen integrated graphics on AM3+

 

Did he try disabling the integrated graphics and then using the 5700 XT?

[danielsuarez369]

6 minutes ago, Vishera said:

Did he try disabling the integrated graphics and then using the 5700 XT?

Doesn't seem to be an option unfortunately, it did work with the 1050ti no settings changed, we're perplexed tbh

[Vishera]

1 minute ago, danielsuarez369 said:

Doesn't seem to be an option unfortunately, it did work with the 1050ti no settings changed, we're perplexed tbh

Did he try the GPU in a different PC?

[danielsuarez369]

Apologies person has a GTX 660 not a 1050ti, will try that Vishera but will take a while

[-rascal-]

1 hour ago, Vishera said:

I just saw this one has integrated graphics o_O

I have never seen integrated graphics on AM3+

 

Did he try disabling the integrated graphics and then using the 5700 XT?

 

That motherboard and chipset was NOT meant for socket AM3+

It is based off of the 760G chipset, which was an ENTRY level chipset that came out in ~2008 with the launch of socket AM2+ ... for 1st generation AMD Phenom CPUs.

This was YEARS before socket AM3 / AM3+ was even a thing.

ASUS should've discontinued it after AM3 (IMO event that is took long)...but kept it going to milk as much money out of it as possible by Frankensteining it to support AM3+.

 

 @danielsuarez369

The power supply should not be a problem; EVGA 850 BQ should be enough to even power 2 5700 XTs.

Is your friend able to event make it into the BIOS menu with the 5700 XT inserted?

Booting into the OS requires loading some drivers on boot-up, and software involvement, while the BIOS is very minimal.

If you cannot make it into the BIOS, then it is could be firmware or comparability issue, rather than software / Windows problem. 

[danielsuarez369]

9 minutes ago, -rascal- said:

 

That motherboard and chipset was NOT meant for socket AM3+

It is based off of the 760G chipset, which was an ENTRY level chipset that came out in ~2008 with the launch of socket AM2+ ... for 1st generation AMD Phenom CPUs.

This was YEARS before socket AM3 / AM3+ was even a thing.

ASUS should've discontinued it after AM3 (IMO event that is took long)...but kept it going to milk as much money out of it as possible by Frankensteining it to support AM3+.

 

 @danielsuarez369

The power supply should not be a problem; EVGA 850 BQ should be enough to even power 2 5700 XTs.

Is your friend able to event make it into the BIOS menu with the 5700 XT inserted?

Booting into the OS requires loading some drivers on boot-up, and software involvement, while the BIOS is very minimal.

If you cannot make it into the BIOS, then it is could be firmware or comparability issue, rather than software / Windows problem. 

Unfortunately cannot even make it into BIOS

[miagisan]

sorry my bad, i read the model number wrong. I have a ASUS M5A97 R2.0. And still, I do not see why it wouldnt be compatible. Yes, the power supply is adequate. 

 

You could take a look to see if there is a bios update that might help. Otherwise, test the video card in a different PC, to make sure you dont have a defective part.

[danielsuarez369]

2 minutes ago, miagisan said:

You could take a look to see if there is a bios update that might help. Otherwise, test the video card in a different PC, to make sure you dont have a defective part.

Bios is up to date, my friend is gonna borrow another PC soon to test it out, appreciate the help!