RX 560 on PCIe 2.0

[oldmachine]

Hello guys. I want to ask something, my pc is kinda old with motherboard Asrock 770DE3L (AM3) with PCIe 2.0 x16; PCIe 3.0 @x4 mode slot (written here https://www.asrock.com/mb/AMD/770DE3L/index.asp). Currently my GPU is GTX 560 (PCIe 2.0 x16). I want to upgrade to RX 560 (PCIe 3.0 x8) which is don’t have power pin connector (draw power from PCIe). Is RX 560 compatible with my motherboard ? If it’s still compatible, is there any power issues with the RX 560 ? Issues like GPU suddenly turned off cause lack of power on full-load gaming. Or Is there RX 560 with power pin connector ? Should I better buy that ?

Sorry for long question 😀
Thank you

 

[Traditore]

This was asked and answered on this forum, btw.

The limit of PCI 2.0 is 75W. RX 560 non-overclcoked draws 80W (and MAYBE 75W will suffice) but it differs from card to card that's why some of them do have PSU auxiliary power connector. The best way would be to ask the manufacturer of a video card you plan to buy if it will be OK in your system. The usually respond in 24H.

There are many RX 560 with PSU auxiliary power, one of them being 'ASUS ROG Strix Radeon RX 560 O4GB Gaming'.

 

[Satan-IR]

As far as compatibility yes PCIE is backward compatible.

As far as the motherboard being able to power the slot it kind of depends on the motherboard.

Some motherboards cannot provide more than 60W to the PCIE and since the card has no external PCIE power connections and the board cannot power it under load yes you might have problems like mentioned.

PCIE X8 is enough for RX 560 as only very powerful graphic cards need more bandwidth than that but the PCIE and I don't think you would see any meaningful performance loss running that card in a PCIE 2 X16. If and only if the motherboard can power it and sustain power to it during heavy loads and gaming.

I think the PCIE 3 X4 slot will result in some performance loss in some games but it won't be that huge and probably unnoticeable.

Maybe you can search and read around the web to see if anyone is running that card on your motherboard.

Which model RX 560 you want to buy? Some of them have 6-pin PCIE power connectors.

 

[oldmachine]

i've read it, sorry re-ask. I still need the clearer answer 😀 I got from AMD forum that RX 500 series only load on UEFI bios, is it true ? Thanks

 

[oldmachine]

Thanks for your reply sir Maybe i want to buy sapphire pulse '45W' 2gb 😀
I found on AMD forum that rx 500 series only load on UEFI bios. Is it true ? Thanks

 

[Satan-IR]

Yes some new generation cards only work with UEFI BIOSes, I'm not sure about RX 560s. Maybe someone else can shed more light on this.

If that Sapphire card would work with 45W you don't really have to worry about your motherboards PCIE power delivery but 2GB VRAM is not much these days.

If you game on this PC what kind of games do you play and at what resolution and refresh rate. Is your monitor 60Hz?

 

[Cioby]

Well AMD claims Typical Board Power (Desktop) 60-80 W (is required)
Also, the only real drawback on using a PCI-E 2.0 for a 3.0 card is that you lose around 10% performance. I placed my old 780 GTX in a PCI-E 2.0 and it runs amazingly. If you want the card just get it, you can update your motherboard later.

Best buck for performance upgrade in my view is ALWAYS THE GPU. Unless the GPU doesn't work at all. Just make sure you have at least 450W power supply.

https://community.amd.com/thread/221994 also to answer your question and also make sure you have enough 8pin or 6+2 pins for your GPU before you buy it.

 

[maxalge]

Well AMD claims Typical Board Power (Desktop) 60-80 W (is required)
Also, the only real drawback on using a PCI-E 2.0 for a 3.0 card is that you lose around 10% performance. I placed my old 780 GTX in a PCI-E 2.0 and it runs amazingly. If you want the card just get it, you can update your motherboard later.

Best buck for performance upgrade in my view is ALWAYS THE GPU. Unless the GPU doesn't work at all. Just make sure you have at least 450W power supply.

with low end cards you loose nothing

at worse you may loose ~2% with higher end cards, the biggest loss of performance comes from the weak processors on older mobos

 

[Cioby]

Hah, funny, you're actually on the link I posted. And that's kinda true max but don't say a$$ or mods will come bully you.

 

[oldmachine]

i just play some esports titles like dota2, csgo, pubg. And some AAA games like witcher 3, watch dogs, etc. Play on 900p res 60 hz and my current rig is doing good.

 

[oldmachine]

thank you for your answer

 

[oldmachine]

jajaja 😀 that's my question also. Okey, thanks for your help sir