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Regarding the MSI 3080 Trio Gaming X three 8 pin connectors

hentai
By hentai
in Graphics Cards
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Posted

Ever since I noticed that it's got three 8 pin connectors it made me scratch my smooth brain.

I've got a Corsair 750W RMx, it came with two of these 8 pin PCIe cables, so that means four 8 pin connections in total

Now the PSU didn't come with a third one, so I though of connecting it this way, would this be completely reasonable? I think I've read that Ideally you want completely separate PCIe connections.

I could try and find a different an additional Corsair PCIe cable from amazon but got no clue which one would work without frying my new card.

 

What do you guys suggest?

 

 

Yeezus was the best album of all time

 

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10 minutes ago, hentai said:

Ever since I noticed that it's got three 8 pin connectors it made me scratch my smooth brain.

I've got a Corsair 750W RMx, it came with two of these 8 pin PCIe cables, so that means four 8 pin connections in total

Now the PSU didn't come with a third one, so I though of connecting it this way, would this be completely reasonable? I think I've read that Ideally you want completely separate PCIe connections.

I could try and find a different an additional Corsair PCIe cable from amazon but got no clue which one would work without frying my new card.

 

What do you guys suggest?

This is totally reasonable.

Main: AMD Ryzen 7 5800X3D, Nvidia GTX 1080 Ti, 16 GB 4400 MHz DDR4 Fedora 38 x86_64

Secondary: AMD Ryzen 5 5600G, 16 GB 2667 MHz DDR4, Fedora 38 x86_64

Server: AMD Athlon PRO 3125GE, 32 GB 2667 MHz DDR4 ECC, TrueNAS Core 13.0-U5.1

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should be fine, total power draw is well below the 3 connector spec with the stock bios. 425w is the overclocked power draw i think, from gamers nexus's vids. 3x 8 pins plus pcie power should be like 525w or something lol, as each 8 pin is rated for 150w.

 

although now that i think about it, ive definitely pulled more than 150w through a single 8 pin, if the gpu-z power readings are right. my 980ti pulls 360 under full load, and it usually pulls 40 from the slot, 170 from the first connector, and 150 from the second connector. should i be worried about that?

topics i need help on:

Spoiler

 

 

my "oops i bought intel right before zen 3 releases" build

CPU: Ryzen 5 3600 (placeholder)

GPU: Gigabyte 980ti Xtreme (also placeholder), deshroud w/ generic 1200rpm 120mm fans x2, stock bios 130% power, no voltage offset: +70 core +400 mem 

Memory: 2x16gb GSkill Trident Z RGB 3600C16, 14-15-30-288@1.45v

Motherboard: Asus ROG Strix X570-E Gaming

Cooler: Noctua NH-D15S w/ white chromax bling
OS Drive: Samsung PM981 1tb (OEM 970 Evo)

Storage Drive: XPG SX8200 Pro 2tb

Backup Storage: Seagate Barracuda Compute 4TB

PSU: Seasonic Prime Ultra Titanium 750W w/ black/white Cablemod extensions
Case: Fractal Design Meshify C Dark (to be replaced with a good case shortly)

basically everything was bought used off of reddit or here, only new component was the case. absolutely nutty deals for some of these parts, ill have to tally it all up once it's "done" :D 

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54 minutes ago, hentai said:

so I though of connecting it this way, would this be completely reasonable? I think I've read that Ideally you want completely separate PCIe connections.

using piggy back style connectors like that poses very minor overclocking stability issues, might lose like 25mhz off max stable frequency compared to using individual wire runs.

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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So it looks like all is good, thanks everyone!

 

Yeezus was the best album of all time

 

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