Can I use my previous PSU for the 3070 Ti?
Can I use my previous PSU for the 3070 Ti?
Let me start with my current PC Specs;
Motherboard
:
Asrock B450M Pro4
CPU
: Ryzen 5 3600 (Overclocked to 4.2 GHz)
CPU Cooler
:
Noctua NH-D15
GPU
(
Current
)
:
Gigabyte rtx 2060 Super Windforce OC
PSU
:
Seasonic M12 II Bronze 620W
(
Non
-EVO Edition with two 6-pin PCIe slots)
Ram
:
Kingston HyperX 2x8GB DDR4 3200MHz CL16
Storage
:
Sandisk SDSSDX120GG25 120GB (for Windows)
Force MP510 (for games and files)
OS
: Debloated Windows 11 Pro
I've been thinking about upgrading my GPU and today my friend told me he wants to sell his
Palit RTX 3070 Ti GamingPro
. I know there may be bottleneck issues due to my Ryzen 5 3600 and my motherboard's PCIe 3.0 support, but my TV being 1080p/60fps means that I won’t be pushing the GPU to its limits anytime soon. So with my limited budget I want to avoid any unnecessary upgrades if I can.
Which brings us to my
PSU
.
For my my current
RTX 2060 Super
(with an 8 pin connector) I have been using the 6 pin to 6+2 pin PCIe cable (three yellow and three black + two black wires) that came with my PSU. According to
techpowerup.com
my
RTX 2060 Super
's tdp is
175 W
. If my understanding is correct, MOBO provides
75 W
of it which means my 6 to 8 pin cable carries
100 W
in theory?
Anyway, since
Palit GeForce RTX 3070 Ti GamingPRO
has
two 8-pin connectors
and a TDP of
290W
, and considering the suggested PSU for this card is
600W
, can I actually get away with using two separate PCIe cables, each going from a 6-pin PCIe slot on my PSU to each one of the 8-pin connectors on the GPU?
(Without melting the cables, killing the GPU or burning down the house that is)
If I can actually use my current PSU, I’ll need to purchase an additional PCIe cable. Is an 18AWG copper wire the recommended standard for this purpose?
(
My PSU box info
;
1
,
2
)
I know it's a long shot since my PSU being an old one and 6 pin outputs have lower power delivery but I don't want to make an extra purchase if I can help it. And if I can't use it, would
Evga 650 GQ V2
be a solid option since it has two 8 pin modular Pci-e slots and cheap?
Sincerely THANK YOU in advance for any help or advice!
Welcome to the forums, newcomer!
The answer to your thread title is no.
A PSU is seen as the core of a system; if it fails, it can disrupt everything connected.
But I’d rather avoid extra costs if I can help.
Since you’re investing in a new GPU, it makes sense to prioritize a dependable PSU to safeguard your entire setup.
Maybe consider waiting a bit and saving up so you can buy a quality PSU together with your GPU.
If I were you, I’d explore a 750W unit—giving you flexibility and ensuring your PSU investment lasts longer rather than just covering one purchase.
Talking about purchases, could you share your location? Please don’t refer to Europe as a country; that’s not the right context. Knowing where you are helps me understand your budget for upgrades and where you’d like to buy if we find suitable options.
Thank you for your response and for considering me. I understood my options were limited and using my existing PSU with a 3070 ti would likely risk my components, even though I thought I was taking a chance. The alternative PSU I inquired about is a budget 650W one, which aligns with the same concerns I expressed earlier; I’m restricted to 1080p/60fps, so pairing it with a 3070 ti (or even my 2060 super for most titles) doesn’t seem necessary. I’m really looking forward to the 3070 ti because I want to enjoy Cyberpunk 2077 with ray tracing and upcoming games such as KCD 2 and GTA 6 at their highest settings.
Thank you for your interest, but given my location in Turkey, it might be hard for you to offer advice on prices and parts.
I chose the MWE Gold 750 - V2.
Thanks again for your support.