[SOLVED] Molex connector problem ?

[ferguson1951]

Hello everybody.
I am writing from Italy.
I have an ATX PSU with various output cables including a 4-pin Molex which I think is for the mobo power supply.
But my micro ATX mobo has an 8-pin connector.
How do I go about solving this problem ?
Your help will be much appreciated.
Thanks a lot and best regards

Mobo: Asus Prime B364m k
PSU: Delta Electronics 350 w GPS-350EB-200 B
ram: Samsung DDR4 4Gb.
GPU PCIE card : (arriving) ASUS EN 8400 GS SCHEDA GRAFICA VIDEO SILENT PCI EXPRESS 512 MB GPU GRAPHICS CARD
CPU: Intel i5 8500
Case: HP ProDesk 400 G3 MT

 

[--SID--]

I have an ATX PSU with various output cables including a 4-pin Molex which I think is for the mobo power supply.

Molex is for peripherals like old storage devices, fans and waterpumps.

But my micro ATX mobo has an 8-pin connector.

The 8-pin connector on the mobo is for the CPU. You need to connect the 8-pin (or 4+4 pin) CPU cable to that.

What's the brand and model of the motherboard and PSU?

 

[SkyNetRising]

I have an ATX PSU with various output cables including a 4-pin Molex which I think is for the mobo power supply.
But my micro ATX mobo has an 8-pin connector.
How do I go about solving this problem ?

What is model name of your PSU?
What is model name of your motherboard?

Can you provide photos of available cables on your PSU ?
(upload to imgur.com and post link)

 

[ferguson1951]

My PSU IS DELTA ELECTRONICS , it has the usual SATA connectors, one big 24 pin connector and one 4 pin MOLEX.
The mobo is

ASUS Prime B365M-K . I cannot find a connector for a 4 pin Molex. There is only one for an 8 pin one​

 

[--SID--]

PSU IS DELTA ELECTRONICS

What model exactly?

 

[SkyNetRising]

My PSU IS DELTA ELECTRONICS

What is model name of the PSU?
(model name is written on PSU info label)

it has the usual SATA connectors, one big 24 pin connector and one 4 pin MOLEX.

Show photos of available connectors.

Molex connector is this one:

You need this type of connector.

 

[ferguson1951]

The PSU also has some connectors, as in the photo, which I dont know what for.

What model exactly?

The PSU also has some white flat 4 pin connectors, I don't know what for.
The PSU model is GPS 350EB 200B
sEE PHOTO:

https://imgur.com/2EUktyW

View: https://imgur.com/2EUktyW

 

[SkyNetRising]

Find this type of connector - (CPU 12V 4pin). Your PSU should have one.

 

[ferguson1951]

I have it, but I do not have a 4 pin socket for it. I only have an 8 pin socket on the mobo.
What I bought, which will be arriving tomorrow, is an extension with an 8 pin male connector on one end and 4 pin male Molex on the other. sEE PHOTO:

https://imgur.com/1sucmgX

View: https://imgur.com/1sucmgX

 

[SkyNetRising]

I have it, but I do not have a 4 pin socket for it. I only have an 8 pin socket on the mobo

CPU 12V 4pin connector goes into one half or CPU EPS 12V 8pin socket.

 

[--SID--]

What cpu and gpu is this 15 year old unit going to power?
Be aware the voltage switch is in the correct position.

 

[ferguson1951]

I tried sticking the 4pin connector into one half of the 8 pin connector but the mobo stays dead

The CPU is an i5 6500

 

[SkyNetRising]

What I bought, which will be arriving tomorrow, is an extension with an 8 pin male connector on one end and 4 pin male Molex on the other. sEE PHOTO:

https://imgur.com/1sucmgX

View: https://imgur.com/1sucmgX

Show photo of your actual adapter (not some random photo from internet).
Connector in your photo is PCIE 8pin.

CPU EPS 12V 8pin connector (goes into motherboard) is very similar to PCIE 8pin connector (goes into graphics card).
They are not compatible.

 

[ferguson1951]

But I do not have a male CPU EPS 12V 8pin connector. I only have a 4 pin male connector from the PSU that I stuck into one half of the mobo's 8 pin socket but PSU and mobo stay dead

 

[--SID--]

The CPU is an i5 6500

This cpu is not compatible with B365 chipset. You need 8000 or 9000 series cpu.

 

[ferguson1951]

Thank you very much everybody. Have a good rest of the day. Guido

 

[ferguson1951]

This cpu is not compatible with B365 chipset. You need 8000 or 9000 series cpu.

Hello. Now the build has an i5-8500 still nothing works. Like there was a short-circuit somewhere. I inserted a PCI test card and turn the PC on but the card is dead too. I unplugged everything but the 24 pin connector and the 4 pin one but no result. The PSU by itself works fine.

 

[SkyNetRising]

Now the build has an i5-8500 still nothing works. Like there was a short circuit somewhere. I inserted a PCI test card and turn the PC on but the card is dead too. I unplugged everything but the 24 pin connector and the 4 pin one but no result.

Can you show a photo of your system with side panel removed?

 

[ferguson1951]

Can you show a photo of your system with side panel removed?

https://imgur.com/KbbpGVQ

View: https://imgur.com/KbbpGVQ

 

[SkyNetRising]

What is that?

Why did you cut PSU cables and put some thin wires in the middle?
Do you want to burn down your house?
They will melt for sure. They look multiple times thinner than normal cables.

What is that weird card in PCIE slot?

Is motherboard installed on standoffs? If it is not, then it's probably shorting out.

 

[ferguson1951]

I did it because the PSU cables were too short.
The weird card in the PCIE slot is a test card, its lights won't go on either.

 

[SkyNetRising]

I did it because the PSU cables were too short.

PSU is upside down.
If you installed it in correct orientation, cables would be long enough.

1. remove motherboard from case.
2. disconnect all unnecessary cables (USB, audio front panel, sata).
3. remove that weird card. It probably isn't even PCIE compatible.
4. CPU fan should be connected to CPU fan header (not system fan header).
5. Have only 24pin and 4pin CPU power cables connected and start button cable.
6. Make sure, you have spliced CPU power cable wires connected correctly (yellow to yellow, black to black).

Then try to start your pc.

 

[ferguson1951]

Just now I read you. Trying only 24 pin connector and 4 pin connector I did it 10 minutes ago but no luck.

 

[--SID--]

Test with another PSU. One that's not old trash and with long enough cables.

What's that PCI-e card?

Are there spacers between the mobo and the case. Don't see any screw btw. There's a short if the motherboard touch the metal of the case. You can fry everthing that's connected to the motherboard.

 

[ferguson1951]

Thank you SID. Let me just think a bit over all the things you told me and I'll come back to you as soon as possible. Thank you.

One thing I can say just now is that I am a pensioner but not a rich one so I would like to do the job with what I got without having to buy new things.

Having said this, I see that the case is such that the mobo has to rest on the case bottom because if I used standoffs the various USB , VGA and other connectors will not fit into the holes for them to come out so that they can be used. The previous HP mobo had no standoffs and even if it had I don't understand how they can prevent a short since they are bronze (metal) and they must surely convey current to the case ?
Am I wrong? See you later and thank you. I am trying to learn.