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Tri sli 470 gtx power requirement

Last response: in Components
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January 21, 2013 4:09:13 AM

Debating going tri sli GTX 470s on a z77a-gd65.
Have a 3570k stable @ 4.4 ghz on 1.25 volt.
Would debate ocing the 470s to 750-800hz @ 1.087


Currently have seasonic x-850. Would that be enough to run my rig?


Thanks for the replies!

More about : tri sli 470 gtx power requirement

a b ) Power supply
January 21, 2013 4:29:12 AM

No i wouldn't.. just keep the 3 470's at stock..
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January 21, 2013 7:07:30 AM

I haven't bought the third 470 yet.

Would I be able to handle a third on the x-850 with my set up?
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January 21, 2013 7:23:50 AM

Your talking close to 800W when your system is in load. Personally I wouldn't push your PSU to that limit and if you OC your components you will probably be hitting pass 850.

If it were me I wouldn't.
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January 21, 2013 7:44:54 AM

lol, soz bud. Think I missed that. My bad
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a c 122 ) Power supply
January 21, 2013 7:46:31 AM

Metwingie said:
lol, soz bud. Think I missed that. My bad
:lol:  no worries.
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January 21, 2013 7:37:34 PM

Metwingie said:
Your talking close to 800W when your system is in load. Personally I wouldn't push your PSU to that limit and if you OC your components you will probably be hitting pass 850.

If it were me I wouldn't.


What would be the consequences of doing so.

Aka, what are the worst things that could happen?
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January 21, 2013 10:22:27 PM

While I am no expert isn't the Z77 limited to 16 lanes with out a PLX so if you tried to run 3 cards you would be in 8/8/4 best case but more likely in 4/4/4 or 8/4/4
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January 21, 2013 10:24:42 PM

Looked it up your board is (16, 8, 4) I would guess the x4 is stolen from a different chip so x4 wouldn't get you much IMHO
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Best solution

a c 1204 ) Power supply
January 21, 2013 10:38:19 PM

When using an Ivy Bridge Processor the three PCIe 3.0 x16 slots of the MSI Z77A-GD65 have the following possible support options:

x16/x0/x0
x8/x8/x0
x8/x4/x4

That means that 2-way SLI is the maximum supported. For the graphics card to be included in the SLI set the x16 slot must have a minimum of 8 PCIe lanes and only two of the three x16 slots on that motherboard have at least 8 PCIe lanes or more.
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January 21, 2013 11:02:48 PM

Interesting. Does my motherboard just suck? I thought I did a fair amount of research
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a c 1204 ) Power supply
January 22, 2013 1:34:05 AM

therevaj said:
Interesting. Does my motherboard just suck? I thought I did a fair amount of research

3-way or 4-way SLI with an Intel Z77 Express chipset motherboard requires that the motherboard also have the PLX PEX8747 bridge chip.

Examples:

ASRock Z77 Extreme9
ASUS MAXIMUS V EXTREME
ASUS P8Z77-V PREMIUM
ASUS P8Z77 WS
ECS Z77H2-AX
EVGA Z77 FTW
Gigabyte G1.Sniper 3
Gigabyte GA-Z77X-UP7
...
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January 22, 2013 3:16:06 AM

ko888 said:
3-way or 4-way SLI with an Intel Z77 Express chipset motherboard requires that the motherboard also have the PLX PEX8747 bridge chip.

Examples:

ASRock Z77 Extreme9
ASUS MAXIMUS V EXTREME
ASUS P8Z77-V PREMIUM
ASUS P8Z77 WS
ECS Z77H2-AX
EVGA Z77 FTW
Gigabyte G1.Sniper 3
Gigabyte GA-Z77X-UP7
...


Wow, so way above what I was considering.

Thanks for the help!
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January 22, 2013 3:17:00 AM

Best answer selected by therevaj.
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