Why are we still using this fat gross thing to power our motherboard?
Why are we still using this fat gross thing to power our motherboard?
>>53612994
this needs to change desu
everytime I do a full clean up of my pc i start sweating bricks cus I think the motherboard is about to break off as I try to pull this thing off
>>53612994
Design a new one
Why are we still using this fat gross thing to power our motherboard?
I want my motherboard to be USB powered
>>53613315
Shut the fuck up
Also, general question. Why do you need so many connectors? Why can't you just use one 3.3v, one 5v, one 12v, and then the power, led, etc..?
>>53612994
Will the new line of gpus use one of these for power?
>>53613393
They've improved power consumption a whole lot on GPUs. Die shrink helped a lot too.
>>53613429
So, what you're saying is, instead of a regular gpu that uses less power, we could make an bitchin' fast uber mega gpu that uses a motherboard power connector?
>>53613315
It could. Most motherboard don't need more than 5A to power up and that a bit over kill.
New design could look like a usb 3.0 header.
>>53613359
Different things require different amount of power.
You people are fucking retards whose knowledge of "building" a computer goes as far as connecting the components and no further.
You disgust me.
>>53613698
I got a major minor in electrical engineering and computer science.
>>53613497
That thing is awful and comes loose if you look at the wrong way.
>>53613519
So there's a different number of amps on each wire? Doesn't make sense.
>>53613698
>>53613060
somebody haven't dealt with cheap-ass AT power connectors
half the pins, double the pain
>>53613359
Would require fat cables running to the motherboard that wouldn't bend
It's better to split them off.
Same thing with the 6/8 pin to the GPU. You could make it 2 (gnd, 12v) but really fat.
It's just more cost-efficient to make multiple smaller ones and it actually bends.
>>53613519
That's not the reason retard
You're right, just have a single component on the motherboard which can handle all the power needs for each circuit and just takes the hard 1kW+ from my PSU in a little USB socket.
That's revolutionary OP, you should apply to be an electrical engineer.
>>53613482
this is how pentium was born
>>53614006
If you electrical engineers wasted more time doing your job instead of shitposting maybe we'd be there already.
>>53614044
Topkek
>>53613785
Your parents must be very proud
>>53613060
I take it you've never had to remove a 4 pin molex connector before.
>>53613886
What the fuck are you talking about different amount of amps?
voltage and resistance make current.
>>53614202
Calm down. >>53613931 Already explained it.
>>53614237
Did you just fucking tell me to calm down? do you know who I am?
>>53613359
The wires would melt if you put that much power through them.
Low voltages means high currents.
>>53612994
How the fuck else do you propose we transfer power? Miniature fucking tesla coils?
>>53614190
>molex
go to bed gramps
>>53614264
>Low voltages means high currents.
Low voltages mean low current if the resistance is the same.
Now if you want equal power things change.
>>53614267
now that you mention it that would be pretty badass
atx standard is shit in general
>>53612994
Because it's not meant to come out.
>>53614259
smooth moves exlax!
>>53614190
>remove a 4 pin molex connector
I don't think you're supposed to remove them.
Much easier to just cut the wires and attach a new connector.
>>53614279
Get off my board, underage B&.
>>53612994
>This is a safety limit on the amount of power that may pass, in case of a fault, through any one wire. That much power can significantly overheat a wire, and would be more likely to melt the insulation and possibly start a fire. Each wire must be current-limited to no more than 20 A; typical supplies guarantee 18 A without triggering the current limit. Power supplies capable of delivering more than 18 A at 12 V connect wires in groups to two or more current sensors which will shut down the supply if excess current flows. Unlike a fuse or circuit breaker, these limits reset as soon as the overload is removed.
>>53614267
How do you think a PCIe 8 pin cable can deliver 80% of total power supply wattage? Just on the +12 rail alone!
>>53614321
You must be an old fuck for telling an joke like that
>>53614373
It's 12V
If it were 3V you would need 4 times the number of cables.
>>53614334
do you know who my dad is?
he can get you fired from your job with just a few calls
>>53614357
no it wont.
Are you crazy? the amount of amps drawn by each wire in the the 24 pin in is under 3A. 18AWG can safely run at 8A
>>53613698
life sucks, kill yourself
>>53612994
Let us know once you design something superior.
>>53614455
Are you even looking at the right table.
The tables on the far right are for the motherboard power cable.
The GPU is the beast in the computer that draws the most power so that is the point of the +12v rail. The other are for the mother pin connector. Only using 2.7A for the 24pin
>>53613315
transferring several ampers current through one thin cable
enjoy housefire
>>53614511
I'm sure they can. But it would break backward compatibility.
I'm for moving forward and not caring for using my old PSU. What another $200 on a build if you got a brand new connector that takes up less space and you can use it for alot more things like fan headers or even more USB ports
>>53614561
USB 3.1 can safely draw 100w. It can power a small monitor. (~24 inches)
a motherboard doesn't even need more than 50w. this isn't counting the CPU and PCI-e connector.
Where just talking about powering a motherboard.
>>53614479
Feel free to fix the article with your infinite wisdom
https://en.wikipedia.org/wiki/Power_supply_unit_(computer)#Multiple_.2B12.C2.A0V_rails
>>53614671
You not even looking at the right +12 rail. You think a motherboard is going to need 20A to power up? This +12 rail is for the GPU.
Look at any PSU chart. the motherboard +12 rail only need about 3A max.
>>53614736
Thanks, now I feel stupid. Why the fuck would you do that?
>>53614190
>try to remove the connector
>it breaks
Fucking molex
>>53613497
>>53613871
>tfw I broke the USB 3.0 connector in my motherboard easily.
The blue plastic shield just pulled off and got stuck on the cable. At least it was just a cheap refurbished motherboard though.
More like why is THIS cancer still allowed?
>>53615040
It's fine if wires are combined into single block like the one on the left. My case has them all divided like the on the right, fucking unstoppable fun to connect that shit after cleaning.
>>53614640
>USB 3.1 can safely draw 100w
Only at 20V.
If you powered your motherboard with 20V it will have to transform it down to lower voltages itself.
Much easier to let the PSU deliver lower voltages.
>>53614640
You never saw a 100W 3.1 cable. It's not as thin as the ones you saw.
Cable is certified and "knows" it's limits, at least that was the idea.
Also delivering 100W peak and 100W nonstop are two different things
>>53615028
You can just stick that shit back on the pins dude. Happened to me too, my USB ports are still fine.
>>53615040
Those are actually used for "arduino's" to experiment with
no idea why they use them for front panel shit
like agree on a standard already it's not hard to integrate a power switch, reset switch, hdd led and power led in 1 cable. Hell allow extensions for servers and you're done.
>>53615336
>and "knows" it's limits
It's most likely a voltage divider that tells the host how much current it can handle. It's up to the host to respect that readout and it's up to the cable not to lie.
>>53614190
They're both terrible (and likewise both Molex patented). All this legacy from the 80's or older needs to die. Ethernet too.
>>53615040
This is a good point, why the fuck do motherboard manufacturers still have different layouts for the front panel connectors?
>>53615412
>that level of autism
He even put "knows" in quotation marks.
>>53615435
What'd you use instead of ethernet?
Do you really think wireless would work?
I use wireless sure, but for steady 1 gb transfers across the house, it still won't cut it.
It'd be nice if we got a bigger push to 10 gb ethernet, but all the attention for consumer networking seems to be wireless now.
>>53615490
The cable doesn't "know" anything. There is no chip.
>>53615435
Other then the fragile clip for ethernet it's really not bad.
>>53615512
The trick is to not take everything literally.
Especially when it's in quotation marks, chances are it was just a figure of speech - that's what normal people do.
![da87333a_atx24-1bcq[1].jpg](https://i.imgur.com/2vi2Pdt.jpg "da87333a_atx24-1bcq[1].jpg")
Look at this, it is clearly old, and extremely default for all PSU's and MOBO's.
Changes in USB connectors are quite rare, don't expect a under-the-hood connector like this to change anytime soon
>>53613025
So that is where Theon's cock went!
>>53615192
>It's fine if wires are combined into single block like the one on the left.
What if I wanted to disable the power led and leave only the hdd one running? Can't do that if all the cables are combined.
>>53615672
Can always cut it.
Or software in bios, I think most bioses give that option.
>>53614044
>>53614190
>molex
my soundcard is going to snap one of these days because of these fucking things.
>>53615533
>fragile clip
Precisely
>>53615774
That is one fancy cable what the fuck
I want it
yea man, lets go back the Thin and Sleek(tm) AT power connector!
>>53615774
>>53615805
>look at price
>starting at €20 each
baka
>>53615028
this happens to everyone
>>53615192
why on earth haven't you bought two 5x2 pin header connectors and just moved your front panel connectors into that in the layout that your motherboard uses, i've been doing that since 2001
back when you have to buy a usb pci slot breakout cable
>>53615774
not thanks, I'll rater that patchcord bag, 1km cable and 1k regular crimplable with covers, crimptool for >half the price of fedora rj45
>>53614264
>Low voltages means high currents.
>>53614299
>>53615931
i'm pretty sure lower voltage at the same power means higher current, not the same person
if this is wrong, please explain
>>53615908
I'm retarded. Explain this thoroughly.
>>53613025
Stallman's not fat or gross! he's handsome!
>>53615995
It's the way he said it, low voltage does not always equal high current. As long as the power remains the same less voltage will give you more current. 600W at 12V will give you 50A while 600W at 6V will give you 100A.
>>53615820
remember, the blacks go together!
>>53615995
higher voltage is important when you want to eliminate loss of power transmitted trough a resistive circuit, not in like , PCs or shit, where the components cannot be designed for high voltages.
>>53616169
>low voltage does not always equal high current
not when taken so literally, but when the power doesn't change (which can be assumed given the context of "lets use less wires to power the same thing"), the lower the voltage, the higher the current
i thought i was missing something, but it seems to just be a misunderstanding
>>53616288
yep, thankfully i never screwed that up
>>53615995
P = I V
where P = power
I = current
V = voltage
therefore keeping power constant, if you increase current you must decrease voltage, and vice versa.
So you're correct is what I'm saying
>>53616388
its more about P=I^2 * R in the case of cable thickness imo.
>>53616438
I was just taking the general case to demonstrate, but sure, they aren't contradictory
>>53612994
No thanks. I'm not replacing my PSU's. Just got 2 top of the line new ones. They will probably last for 20 years combined.
>>53616388
right, cool
i understand now where >>53615931 is coming from, the statement could be taken the wrong way
just wanted to be clear since i'm learning more about electricity for a particular project i hope to do, and i run into gotcha's quite often
>>53616438
Which came first, the cable or the motherboard?
>>53612994
because there's no other choice
>>53616028
Tru dat niggi
>>53615721
>soundcard
Hold on there laddy, we can't 'blast from the past' just yet.
>>53616497
where if you consider the heat generated by the flowing current , then you wont power up a mobo with a hair thin cable because it will burn itself. Other than that ,ye the mobo works on 12V (and there is not much you can do about it)
>>53616636
i still use a soundcard
it's actually the oldest part in my computer now, still sounds better than the onboard
>>53614551
What he is saying is that there are connections to the motherboard for 3 and 5.5 volts, to transfer that kind of power on a 3 volt rail you'd need more wires.
>>53613871
this. those things are dog shit, who the fuck designed such a useless connection?
at least the 9 pin connector next to it actually stays where you put that shit for regular usb headers.
>>53618463
It can have a clip just like the 24pin if you want it to so you can shake your computer like a gumball machine and your cable wont disconnected.
>>53616673
Not sayimg that you're wrong but have you tested this or does it 'just' sound better?
>>53618779
the onboard has a small amount of noise/inteference at higher volumes + quiet output
it is really minor
the main reason i keep using it isn't the quality difference, it's the volume difference, it can go much higher than the onboard can
i've had the card since 2003, at the time the quality difference was quite noticable, but even now there's at least no reason NOT to use it still
i'll probably only stop using it once i get a motherboard with no 'conventional' pci slots, as that's what it uses
>>53612994
Because ATX PSUs are still the standard for essentially every workstation form factor.
I couldn't for the life of me tell you how much actual mobos actually draw off all those 3.3V and 5V lines though. You would expect that as ASICs are all approaching ~1V power input and VRM technology gets better that things could be simplified.
>>53615774
>plug ethernet in
>computer starts shaking violently
th-thanks phoenix
>>53616673
I ise one because it'd be in my system even if I used onboard audio, may as well use it
>>53618998
KEK
Glad I'm not the only one who noticed that
>>53615028
>>53615901
You mean like this?
>>53620819
>>53618998
I thought it was shaking from the excitement of being plugged in such a nice fancy cable.
