General PC Help Thread - OP updated with useful links - READ

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Death's Head
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PostRe: General PC Help Thread - OP updated with useful links - READ
by Death's Head » Wed Nov 29, 2017 10:00 am

I have a 1050ti and mine is powered directly by the board with no additional cable.

Yes?
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*<]:^D
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PostRe: General PC Help Thread - OP updated with useful links - READ
by *<]:^D » Wed Nov 29, 2017 10:08 am

oh wow thats quite cool - didnt realise these new gfx cards were so efficient!

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Green Gecko
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PostRe: General PC Help Thread - OP updated with useful links - READ
by Green Gecko » Wed Nov 29, 2017 11:47 am

Yes that model runs just off the motherboard, useful if you have an OEM psu.

About the two 1" or so molex connections on the small fan, the other one is for daisy chaining another fan because you can run at least 3 fans and probably a lot more from a single 12V. They're wired in series. You're probably either missing a modular cable to the psu for this or its in use elsewhere e.g. Optical drive. However you can sandwich it in between other devices, that's how it works, the fan "piggybacks" current of something else because it doesn't use much power.

The smaller fan connectors go to the motherboard because those can often be speed controlled. Standard fans that connect to the power supply are just on all the time.

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Dowbocop
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PostRe: General PC Help Thread - OP updated with useful links - READ
by Dowbocop » Wed Nov 29, 2017 12:11 pm

<]:^D wrote:im confused by your questions tbh :lol:
the graphics card always plugs directly into the PSU for its fans these days; there should be two cables that plug directly into the card itself.
if the 8mm fan has a molex connector then that too can plug directly into the psu

does that help?

Yeah I thought that might happen :lol:

As Death's Head says, the GPU runs completely from the PCI slot so that's the easy part! All my fan questions are about case fans, specifically the little one I have on the side, which has a molex connector like the one on the far right below:

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All the other fans I have are the tiny 3/4 pin ones. I got confused over it when I put the computer together originally, and I was spending a lot of time away from home so I didn't really have time to really get into it. The PC worked so I just cracked on as is. When you only have two days a week living at home you don't want to spend your free time fiddling around with cables!

GG - that's interesting as I did note last night that the optical drive did have some serial connectors, and I do have some unused modular cables. Some are quite clearly for graphics cards, but others may fit the fan. That may be the way forward...

Thanks to all for your help. I'll get that fan hooked up to the PSU and see how hot it gets. I have a plan to make the optical drive bays into a front fan grill for a big front intake, but I don't really want to have to do that right now as that involves a trip to B&Q and then a bit of DIY, and my son takes up a lot of my time at the moment!

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*<]:^D
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PostRe: General PC Help Thread - OP updated with useful links - READ
by *<]:^D » Wed Nov 29, 2017 12:40 pm

good advice from GG, and check your motherboard instruction book/manual - it will have a diagram showing where you can plug in fans etc. :)

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Dowbocop
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PostRe: General PC Help Thread - OP updated with useful links - READ
by Dowbocop » Wed Nov 29, 2017 10:46 pm

Success! In the box with my motherboard manual was a big long modular cable of serial fat molex connectors, which made the process a lot easier! All installed, just need to mess around in the settings to get everything tweaked. Thanks again for the advice :D

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Green Gecko
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PostRe: General PC Help Thread - OP updated with useful links - READ
by Green Gecko » Thu Nov 30, 2017 1:08 am

Sure np. I've never actually had controlled fans, mine are all antec tricool with 3 speed selectors sometimes built into the case and they never need to be on more than low. Automatically revving fans would probably just annoy me. They all have 2 or 4 pin molex. The good ones are designed to plug inbetween something else meaning less cables in you system, but I usually have 1 modular cable just for fans to keep things simpler.

You can hook up LEDs and cold cathodes to those molex connections too, if you're into that sort of thing.

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