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HP Proliant ML350p G8 Watercooling!

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4 hours ago, XeonUnicorn said:

Not sure about the illegal op code part, as for the GPU cable iirc you populate the lower part of the BLACK socket with the 6 pin end of your cable. 


So I reverse the cable put the 6 pin part in the motherboard and the 8 pin in the graphic card ?


Do you have any photos ?


Otherwise, I wonder if I cannot just cut the empty square pin because it looks to be the one that blocks the 8 pin cable to connect...


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How man pins on the GPU? 

Mines a modular (corsair) 6 pin power supply end into two 8 pin gpu plugs. My card uses both 8 pin plugs. 

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Google images for pcie pin config

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I cannot say enough thank for all your reply. After some search in my cable I found a 6 pins PCIE that can plug :

1 2 3   = 12V

5 6 7   = GRD




Nothing to plug in 4 and 8, I don't know if it'll be ok .


So I plan to connect like

1 2 3 to 12+

4 5 6 7 8 to GRD


If I'm wrong I will only burn graphic card or I risk also to burn mother board ? :x



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Burn the card, but it should be fine. A friend says illegal op code might be a bad ram module. 

That is the correct 6 pin power end based on your pic. 

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So we just added pwm to the radiator fans! Using a bread board we attached three pwm headers, wired all for 12v supply (molex), and hijacked a pwm signal (fan2 pwm) off the fan connector and wired it as common on the bread board ;)


Utterly silent! 

When it goes through POST they spin up to full rpm (still not loud at all) the same as original deltas did. 


As a side note don't use power from the fan connector as this is a 4.5amp supply and will likely kill low amp cooler fans or at least that's our theory, hence the use of molex supply of constant 12v.

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Sounds good :) . What brand of fan do you use ? What is the setup of your ml350p ? What os do you use ?


The graphic card did not burn all is ok, I just received my 1200w power supply I won’t fear any more my pc to shut down I was having only a 460w psu... ;)

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I'm using Cooler Masters master liquid 120rs x2. They are all-in-one coolers that come with fans so x4 120mm fans basically.


I'm in engineering so hardware like brackets and cpu retention brackets are custom made. RyanG8 has had success with other brands of AIO liquid coolers that have the correct cpu mounting hardware, i had to make mine because the model of AIO I used did not have the correct hardware. I believe AStek make an AIO kit that has LGA2011 narrow mounting hardware. Other than the fan connector mod the rest of the machine is stock. 


CPUs - x2 E5 2620s

RAM - 96 gig, mix of 4 and 8 gig modules 10600

GPU - Asus 6970 (for now) 

OS - W10

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