[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

 

[ferguson1951]

See posts above.

PSU cables are short and do not reach the mobo

https://imgur.com/BPIxBMo

View: https://imgur.com/BPIxBMo

View: https://imgur.com/undefined

 

[SkyNetRising]

That doesn't seem like full length of cables - in the photo.
Probably they're tied up together.
In post #137 - cables look much longer.

If they indeed are so short, then use cable extensions.
Do not cut psu cables (like you did before).

 

[ferguson1951]

Indeed they are so short and I get the impression I should have got a smaller case.
Cable extensions I will have to buy so it will take a few more days.

 

[ferguson1951]

I bought the extensions, now we have to wait a few days. Thank you

 

[ferguson1951]

Hi, chaps. I found a way to connect the PSU without extensions and the mobo works

https://imgur.com/A31hESm

View: https://imgur.com/A31hESm

 

[SkyNetRising]

Great. Looking good.

 

[ferguson1951]

OK, PWR LED AND PWR SWITCH are fitted and they work. Now let's concentrate on the CHANNEL FAN.
The mobo description has 4 pins: from left to right ...+5v...CHA FAN IN...CHA FAN PWR and GROUND.
How do I fit my 3-pin fan connector. Thanks a lot

 

[SkyNetRising]

How do I fit my 3-pin fan connector.

There is only a single way to fit 3pin fan on 4pin header.
Note - you have to switch fan regulation mode from PWM to linear voltage (DC mode) in BIOS.
Or else it will not be regulated properly.

Cooler Master FAQ

landing.coolermaster.com

 

[ferguson1951]

Thank you, I can do it. I will come back some time later when I am free to attend to such problem. Thanks a lot

 

[ferguson1951]

OK, great blokes, the die is cast !!! I now think spending 15 days naked at the North Pole should be easier, but I made it. Thanks to you both, SID and Sky Rising. I think I owe you two tickets for the Ascot Race. Or a week's free fish & chips and beer.
Anyway, without you both I would have never made it. By the way, the back fan works without having to touch the Bios. Thanks again. God save the King!
With 350 quid you can build one like this

https://imgur.com/hd6KKb3

View: https://imgur.com/hd6KKb3

https://imgur.com/54XvgGY

View: https://imgur.com/54XvgGY

https://imgur.com/8yqSAfC

View: https://imgur.com/8yqSAfC

 

[SkyNetRising]

By the way, the back fan works without having to touch the Bios. Thanks again.

Cables can be routed behind motherboard tray - to look more tidy.
That is purpose for all those holes in motherboard tray.

SSD can also be installed behind motherboard.
Use screws that came with pc case.

3pin fan will work without changing BIOS settings.
It will not get regulated properly though. It will spin at constant speed all the time.

 

[ferguson1951]

I looked up the Bios but I could not find any way to do as you said. Maybe I should send you a picture vof the Bios screen

 

[SkyNetRising]

Switch BIOS into EZ mode and go into Q-Fan Control.

 

[ferguson1951]

I went into Fan Control but I did not find the option you said. In any case, according to the graphic, fan was running at 100%. What I did was choose the TURBO option, the fan was running at 730 rpm.

 

[SkyNetRising]

I went into Fan Control but I did not find the option you said.

Select chassis fan, where fan is connected.
And switch from PWM mode to DC mode.

 

[ferguson1951]

It's OK now, mate