[SOLVED] Is my existing PSU okay for an RTX 3070 ?

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sillybilly1

sillybilly1

Dec 17, 2020
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Hi there!

First time upgrading a PC, I've tried to look around the site and elsewhere for help with this but some reassurance would be great! I've purchased a GIGABYTE GeForce RTX 3070 8 GB AORUS MASTER Graphics Card to replace by GTX 980. I believe my PC is a IdeaCentre Y900 and it has a Acbel FS8003 which says Total Power 625w on it. Recommended is 650w on Gigabyte's website.

My questions are:

1. Is this PSU enough for me? I know this is a bit debated and obviously depending what I have in the PC. I have used OuterVisions power calculator to the best of my knowledge and it says I need 450w. Would rather not change the supply as cables are routed all round the case.

2. THE 3070 needs 2x8 connectors. There's spare power cables about. 1 "pair" (I say pair as they are loomed together) has a 6 and 6+2 connector (the 980 has 1 of these pairs in it, though 6 and 6). Nearby is another "pair" 6 and 6+2. . Can I use the 2 different 6+2?

Also not sure if its a standard or PSU specific numbering system but the cables are numbered as follows:

1st Pair
P9=6 + P10=2
P11=6

2nd Pair
P12=6 + P13=2
P14=6

(P12 & P14 in current GTX 980)

specs:
Intel 6700k
will be GTX 3070
1 x SSD
1x HDD
2x 8gb DDR4 Ram
3x 120mm Fans
DVD Drive (which I'm happy to unplug)
Sound Card (also happy to unplug)

Also connected 32" 1440p monitor
gaming mouse and keyboard
external USB sound card (has its own power supply)

Thanking you in advance!
Rory
 
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Solution
DSzymborski
Eww. AcBel actually does make a few decent ones for OEMs, but this is not one of those. This particular PSU is of ancient design, with only 475 of 625 claimed watts actually available of +12V power, a shocking configuration for 2020. The power output, with under 240W per rail suggests something that was actually made or at least designed before like 2005. This is s very poor PSU by modern standards (and pretty bad by older standards) and shouldn't really have been used now.
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Eww. AcBel actually does make a few decent ones for OEMs, but this is not one of those. This particular PSU is of ancient design, with only 475 of 625 claimed watts actually available of +12V power, a shocking configuration for 2020. The power output, with under 240W per rail suggests something that was actually made or at least designed before like 2005. This is s very poor PSU by modern standards (and pretty bad by older standards) and shouldn't really have been used now.
 
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Solution
Thank you both for getting back to me. Think Lenovo are known for cutting costs where they can! Although had no issues at all since I got it.

I will take a look through the pinned threads to help me get a new one.
 
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