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GPU connection challenge

Go to solution Solved by Cyracus,
6 hours ago, iconic said:

The 2x 6pin on mu PSU are connected to each other on one lead so will that work and carry the 130w needed for my 1660?

That's fine (technically there's slightly less power stability on those piggy-back style connectors compared to having separate cables, fraction of a percent less OC potential. Negligible)
I believe the reason to avoid adapter cables is primarily power issues from poor connection

Hi there

 

I have a fairly old Dell XPS 8300 with a stock 460w PSU (Dell AC460AD-00) it's a machine that I have upgraded a few times with SSD, extra ram etc over the years and it's always been simple to do so. It's been a solid reliable PC.

 

However, I have made a novice mistake I think in trying to upgrade my ageing 750ti to a 1660 OC card (I thought it was a decent upgrade for a reasonable price)...

 

The new GPU has an 8-pin connection - when opening my case to install it, I realised my PSU only has a 6pin connection, with a 6pin connection spurring off that.

 

The GPU is - PNY GeForce GTX 1660 6GB XLR8 Gaming Overclocked Edition Graphics Card, if that helps.

 

What can I do please? Can I get an adaptor or is that problematic?

 

Any advice on how to use it much appreciated. 

 

Thank you.

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There are adapters (molex to 8-pin comes to mind), but it's recommended to get a psu that can connect to your gpu without adapters if possible.

desktop

Spoiler

r5 3600,3450@0.9v (0.875v get) 4.2ghz@1.25v (1.212 get) | custom loop cpu&gpu 1260mm nexxos xt45 | MSI b450i gaming ac | crucial ballistix 2x8 3000c15->3733c15@1.39v(1.376v get) |Zotac 2060 amp | 256GB Samsung 950 pro nvme | 1TB Adata su800 | 4TB HGST drive | Silverstone SX500-LG

HTPC

Spoiler

HTPC i3 7300 | Gigabyte GA-B250M-DS3H | 16GB G Skill | Adata XPG SX8000 128GB M.2 | Many HDDs | Rosewill FBM-01 | Corsair CXM 450W

 

 

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28 minutes ago, iconic said:

Thanks, what are the risks or should it work OK?

 

Sorry, just to add after doing a bit of research I found a 2x 6pin to 8pin adaptor on amazon.

 

I also read that each 6pin carries 75w (so 2x is 150w). All good but my question is now...

 

The 2x 6pin on mu PSU are connected to each other on one lead so will that work and carry the 130w needed for my 1660?

 

In case I have explained this badly, the picture here of my CPU shows what I mean - https://www.cpumedics.com/dell-ac460ad-00-460w-power-supply-for-xps-8300-8500/

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6 hours ago, iconic said:

The 2x 6pin on mu PSU are connected to each other on one lead so will that work and carry the 130w needed for my 1660?

That's fine (technically there's slightly less power stability on those piggy-back style connectors compared to having separate cables, fraction of a percent less OC potential. Negligible)
I believe the reason to avoid adapter cables is primarily power issues from poor connection

desktop

Spoiler

r5 3600,3450@0.9v (0.875v get) 4.2ghz@1.25v (1.212 get) | custom loop cpu&gpu 1260mm nexxos xt45 | MSI b450i gaming ac | crucial ballistix 2x8 3000c15->3733c15@1.39v(1.376v get) |Zotac 2060 amp | 256GB Samsung 950 pro nvme | 1TB Adata su800 | 4TB HGST drive | Silverstone SX500-LG

HTPC

Spoiler

HTPC i3 7300 | Gigabyte GA-B250M-DS3H | 16GB G Skill | Adata XPG SX8000 128GB M.2 | Many HDDs | Rosewill FBM-01 | Corsair CXM 450W

 

 

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9 hours ago, Cyracus said:

That's fine (technically there's slightly less power stability on those piggy-back style connectors compared to having separate cables, fraction of a percent less OC potential. Negligible)
I believe the reason to avoid adapter cables is primarily power issues from poor connection

Thanks for helping.

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