All Questions
Tagged with power-supply computer-building
89
questions
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4pin CPU connectors on HP Omen 45L
I'm replacing PSU in my Omen HP 45L and having an issue figuring out what the two 4pin power connectors are on the motherboard.
The new PSU is modular (MSI MPG A1000G) and doesn't come with 4pin cable ...
- 101
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0
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274
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Fans on motherbaord and chassis not spinning after replacing power supply
Fans in the motherboard doesn't spin after replacing the psu.
The old one doesn't work so I replace it with a new ones (forgot model name) of 240v.
the small led in the motherboard shines but the cpu ...
- 3
1
vote
1
answer
2k
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Can use these 3 8-pin connectors for my 3090?
I have an EVGA RTX 3090, and it has three 8-pin connectors to power it. On my PSU, it looks like it has enough connectors, but they are grouped weird, so I don't know if I can use them all.
Are all ...
- 121
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75
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Inrush current from a hard disk upsets other connected drives in a computer?
I have a lab computer I built to run VM's and that can cater for old and new hardware devices to help me with my job. It contains a fair amount of hardware, some of which doesn't need to be on all of ...
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572
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My PC got got high Electric Power and burned my Gpu‚Cpu and motherboard
The electricity turned on/off 4 times in the building. My PC shutdown once. After a couple hours, I tried to start my PC, but it didn't start. I went to a PC hardware expert who said my:
GPU (...
- 1
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40
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Newly Build Computer Not Running POST
I build a computer using entirely new parts (except for the video card with I used in my old computer for about a month before deciding to upgrade everything). When I turn it on the fans run and some ...
- 101
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870
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PSU plugs don't line up with CPU power on motherboard
My 650-watt power supply came with many connectors. There is a problem, however: on the left side of both 8-pin connectors, the arrangement is wrong (the roundish-bottomed and square pins are swapped ...
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1
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8k
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2x 4 Pin CPU cable in EATX12V
I have the be quiet! power 9 psu and the asus prime b450-plus motherboard I'm using a external graphics card and a NVME SDD so I guess it'll use 2 PCIe ports.
The manual says I have to plug in a 8 pin ...
- 103
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21
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PC turns off and on sporadically 1 month after building
I built this pc about a month ago and yesterday, it suddenly started turning on and off randomly. This was not just during CPU/GPU intensive tasks, this happened once while downloading a large file.
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16
votes
6
answers
112k
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How much power output can an 8-pin to 2x 6+2-pin connector output?
A common cable included in modern modular PSU's is the 8-pin to 2x 6+2 pin. However, based on reading (such as PCI-e Power - Does 6 + 2 Equal 8?) an 8-pin is effectively the same as a 6+2 pin. If that'...
- 526
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votes
1
answer
1k
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single 4 pin cpu power cord in a 4+4 pin psu connector input
I have a corsair hx 1200 power supply ... my crosshair vIII hero motherboard has 2 cpu inputs on it... one 8 pin and one 4 pin... i ordered custom cables from cablemod as well... one 8 pin and one 4 ...
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71
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New PC build , boot issue
i'm new on superuser so correct me if i'm breaking some rules here,
I have built a new pc system. when trying to boot both cpu and psu fan spin for a couple secods then go off, and i can re-do this ...
- 101
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votes
1
answer
1k
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Is using a 8-pin connector for 12-pin ATX 12V power connector ok?
My motherboard supports a 8+4-pin CPU power but my power supply only has the 8pin connector wire. Is this ok or do I need to buy another power supply to support the additional 4-pin?
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74
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Building a New PC, Motherboard Not Responding to Power Supply
I have recently purchased a new PC. I have verified that the power supply works (using the on-board button). The motherboard is not powering on. I have verified connections (unplugging and plugging ...
6
votes
3
answers
3k
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Custom PC build suspended on wall: how to properly ground the PSU and the Motherboard?
When building a custom case for a computer that will be mounted on the wall, hanging, suspended are there any special considerations for the PSU or grounding?
Assumption 1 – I assume the MB will need ...
