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gpu psu decision

Associate
Joined
26 Sep 2025
Posts
24
Location
UK
hi so this is the situation i am in, currently deciding which hardware i am going to buy to build my first pc, stuck on deciding on the psu, my main options are the corsair rm850w or the rm1000w, the 850w is about £130 and the 1000 is about £150 but goes up to £170 when the places that stock it at £150 run out :

expected specs:

9800x3d
9070 xt
32gb ram
msi MAG X870 TOMAHAWK or MSI MPG B850 EDGE TI

so the 850w has 3 pcie connectors and the 1000w has 4 connectors, the motherboard has an extra connector for pcie so not sure if to connect that and if i have the 850w one i will only have 2 connectors left for the gpu and some of them need 3 pcie's and i dont want to limit myself to only ones that need 2 connectors, also some of the 9070 xt card say different minimum requirements for example the powercolor red devil i think says 900w so not sure if the 850w psu is suitable, so i would prefer to get the 850w to save some money and its easier to get hold of as the 1000w gets going out of stock at the lowest price but not sure about the minimum requirements and the need for more pcie connectors. hope someone can help me sort this out.thanks.
 
thanks for the replies, prefer sticking to corsair as can find many reviews and have had a look at the phanteks and they look good but not really any reviews and i know there could be a problem with tidying the wires.
 
currently choosing my parts for my first pc build and had decided on either the corsair rm850x or the corsair rm1000x, would have preferred to go for the 850w to save some money but it only has the 3 pcies and i wanted 4 pcies but the 1000w one had 4 pcies, also some of the 9070 xt card have a minimal requirement of 900w(powercolor red devil).Now i have come across the be quiet! Pure Power 13 M 850 W and it has good reviews and has 4 pcies but the 4 pcies come on just 2 cables so they are daisy chained and not sure about how safe they are as i have heard before to make sure to connect 1 pcie per cable for safety.anybody got any experience or advice about this bequiet psu.
 
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