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Windows 7: PSU with no 4-pin connector to motherboard

16 Dec 2012   #1

Windows 7 64bit
 
 
PSU with no 4-pin connector to motherboard

Hi

I just brought a new graphics card and a PSU (Corsair TX850). Everything my old PSU was connected to now has my new PSU, except for one 4-pin white box on the top right hand of my motherboard (Biostar TH55B HD) as my new PSU does not come with a 4-pin cable.

My motherboard can be seen here: http://www.biostar-usa.com/upload/Mo.../b20100111.jpg

Not sure what that 4-pin connector is for, all it says above it is ''Power Indicator'' and below it ''ATXPWR2''.

So was just wondering if it is necessary to have the right connector connected to it before I turn on my PC.

Thanks

My System SpecsSystem Spec
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16 Dec 2012   #2

Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)
 
 

What does the Corsair TX850 manual say ? Is there a 8pin split connector coming out of the PSU ?
My System SpecsSystem Spec
16 Dec 2012   #3

Windows 7 Ultimate 64 bit
 
 

That is your 4 pin cpu power connection. Have a look here.....click on the photo and then see photo 3.

Newegg.com - BIOSTAR TH55B HD LGA 1156 Intel H55 HDMI Micro ATX Intel Motherboard
My System SpecsSystem Spec
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16 Dec 2012   #4

Windows 8.1 Pro RTM x64
 
 

That connector supplies power to the voltage regulators, which in turn supply power to the CPU. So, it is very important that this is connected. From your PSU specs, I note that it doesn't have a 4-pin connector, but it does have an 8-pin arranged as 4+4. You need to plug one of these (whichever one fits) into this socket.
My System SpecsSystem Spec
16 Dec 2012   #5

Windows 7 Ultimate 64 bit
 
 

This should explain your cables on the PSU. As DocBrown pointed out it has one 8 pin connector that splits into 2 4 pin connectors. Some newer mobo's use the 8 pin connection instead of the 4 pin. Check out the specs here.....

Newegg.com - CORSAIR Enthusiast Series TX850 V2 850W ATX12V v2.31/ EPS12V v2.92 80 PLUS BRONZE Certified Active PFC High Performance Power Supply
My System SpecsSystem Spec
16 Dec 2012   #6

Windows 7 64bit
 
 

Quote   Quote: Originally Posted by bassfisher6522 View Post
This should explain your cables on the PSU. As DocBrown pointed out it has one 8 pin connector that splits into 2 4 pin connectors. Some newer mobo's use the 8 pin connection instead of the 4 pin. Check out the specs here.....

Newegg.com - CORSAIR Enthusiast Series TX850 V2 850W ATX12V v2.31/ EPS12V v2.92 80 PLUS BRONZE Certified Active PFC High Performance Power Supply
Thanks mate, figured it out.
My System SpecsSystem Spec
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 PSU with no 4-pin connector to motherboard





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