Questions tagged [atx]
The ATX (acronym for Advanced Technology Extended) is a standard created in 1995 by Intel, addressing four major areas of improvements: greater ease of use, better support for current and future input and output devices, better support for current and future processor technologies and reduction of system cost.
66
questions
0
votes
0
answers
22
views
Lenovo 14-pin PSU confusion
I have a Lenovo IdeaCentre from 2014 as my main rig. I was about to replace the GPU (a GT 705) with a GTX650Ti that I have from my friend's old rig. I realised it needed a PCIx power, and I have a ...
0
votes
1
answer
2k
views
How did HP made their power on bottom work with no VSB (standby) on their pro 290 and to make a 24pin ATX psu work with it?
The factory psu is a psu with RuRach board and has two ATX 4pin and 3 of 7 inline mini:
From HP site, the full 7pin inline mini of the p2:
Apparently,
green is for PS_ON;
grey, for PWR_OK;
black, ...
- 1
1
vote
1
answer
124
views
ATX Power Supply Switch - What is the actual name of this switch?
Initially I was wondering if anyone makes a cover that attaches to these, or if they come in a style other than the little stepped up squares, but don't know what to search for, everywhere just seems ...
- 1,018
3
votes
0
answers
312
views
How are ATX 12 volt rails organised?
I'm looking at (flex)ATX power supplies, and notice that some have multiple 12 volt rails. For example this 400w one (https://www.fspgroupusa.com/ecommerce/fsp400-60fggba.html) has a maximum capacity ...
- 131
0
votes
0
answers
1k
views
Using two 2-pin power cable together as 4-pin (CPU ATX)
My main-board needs 4-pin ATX CPU power, but my power supply (1000W) has two 2-pins. Can I use these two 2-pins together and how? Also, my power supply has 6-pin and 8-pin cables too.
Power supply ...
- 151
1
vote
2
answers
1k
views
ATX PSU Input Specifications
Is there a specification on input operating voltage and frequency range for ATX power supplies? The focus of what I am finding is on output voltages.
Also, regarding just the input voltage, most ...
- 165
1
vote
1
answer
220
views
ATX hard disk activity led wiring
How is the hdd activity led wired according to the ATX specification? Is it like this?
simulate this circuit – Schematic created using CircuitLab
If so, what is the 5V voltage relative to? PSU ...
- 738
1
vote
2
answers
2k
views
How to connect mini-itx with atx 2-pin block to 24-pin ATX12V
I have a mini-itx motherboard that has a 2-pin internal 12V DC-in power connector (Motherboard manual) (+12V DC)
I also have a power supply with 24-pin motherboard connector.
Now I want to connect ...
- 121
1
vote
1
answer
2k
views
Is my PSU ATX 4-pin connector reversed from the standard?
I just got an EVGA 750 GQ power supply. The manual mentions that it includes an ATX 20+4 pin motherboard cable. However, the 4-pin connector appears to reverse the pinouts from the 4-pin plug on the ...
- 288
0
votes
1
answer
64
views
Computer Freezing Every Boot
My computer is freezing each time i turn it on. It doesn't freeze at the same time on boot. I was hoping for suggestions.
Thing's I've Tried:
Remove all RAM but one chip
Unplug all external ...
- 1,316
4
votes
3
answers
58k
views
Dimensions of Standoffs and Screws for ATX Motherboard
What are the dimensions for the standoffs and screws used for mounting an ATX motherboard to the computer casing? I'm using them to make my own motherboard mounting plate.
Some sources say the ...
- 375
0
votes
1
answer
528
views
Can a molex power splitter safely supply power to an IDE HDD and 3 fans?
This is for a legacy PC I want to keep for a work. The PSU has only 1 4pin molex which is connected to the IDE HDD atm. I live in a tropical area and things get really hot and my PC overheats ...
0
votes
1
answer
283
views
How can 5 small case fans in parallel cause instability for a hefty ATX 900w PSU
I hope this is not off topic here, but I have a PC with a 900w ATX PSU (Be Quiet! Dark Power Pro 8 900W). I have it set up in my PC with motherboard, GPU and case fans connected to it. I`m now ...
- 348
1
vote
1
answer
227
views
0
votes
0
answers
246
views
ATX PC reboot, does power supply actually cut off power to components?
When I issue the reboot command in OS, does it actually affect power supply output (12V rail in particular)?
For instance, PC B uses PC A's power supply for hard drive (SATA power) and graphics card (...
- 358
0
votes
1
answer
200
views
What is the power supply connector used for?
I recently came across an old ATX power supply, and one of its connectors looks like this (apologies for the quality):
Does anybody know what this connector is called and what it connects to/is used ...
- 119
1
vote
2
answers
11k
views
Low Profile PCIe card in a standard ATX case - will it fit, and do I need adapters?
I've got a standard normal-sized ATX case (don't know its name or specifications, because I got it from a friend) and a standard motherboard (MSI B150 PC-Mate) inside.
Since it doesn't come with a ...
- 181
2
votes
0
answers
2k
views
How can I repair a power supply for a Apple's Power Mac G4?
This is an attempt to gather a reference page for anyone trying to replace a failing PSU from a Power Mac G4 with an equivalent ATX in the future.
There are still a couple of pages -luckily- ...
- 1,233
1
vote
1
answer
990
views
Connecting an ATX power supply to a Hard Drive Enclosure
I have a 4 bay hard drive enclosure made by Sans Digital (one of the TR4M series)... check that, I have 3 such enclosures and the power supply died on 2 of them. I called Sans Digital and asked about ...
- 11
1
vote
3
answers
2k
views
Can't jump-start ATX PSU
I've bought a new ATX PSU on the internet. I was planning to use it as a lab power supply and as soon as it arrived home I've tested it by shorting the green wire with a black wire. It worked for less ...
0
votes
2
answers
3k
views
3.3V and 5V rail in modern PC
These days in ATX PSU these voltages come from a single rail and have fixed amount of current.
Seems like they do not affect the PC functionality these days.
I know that USB port use the 5V rail ...
- 192
0
votes
1
answer
3k
views
PC will only turn on if I position the PSU ATX power cable in a certain way
The past 3 days I've been trying to fix this issue. I just bought a new motherboard and CPU, but I've ran into a problem. My computer will not turn on unless I'm pulling/pushing/positioning the PSU ...
- 291
0
votes
2
answers
3k
views
How does the motherboard PW switch operate, exactly?
I have a special miniature ATX power supply, and it has the PW output pins that are supposed to be connected to the motherboard so that the PSU can turn the system on or off. But I have a different ...
- 1,197
1
vote
0
answers
1k
views
Computer doesn't start when 12V CPU power plugged in
Configuration (troubleshooting):
Board: Socket AM3+ Gigabyte GA-78LMT-S2PT
CPU: AMD FX4300
PSU: 500W Peak
Other components:
GPU: ASUS Nvidia GTX960
Mem: 12GB (8+4) 1333
HDD: Seagate 1TB SATA
...
- 11
3
votes
1
answer
18k
views
ATX Dell PSU to Offical ATX 2.0 spec pinout
Hey all I am using an old Dell Precision R5400 which has the 750w hot swap-able power supply. Problem being, since its a dell, the ATX pin layout is different than that of a normal, standard ATX 2.0 ...
- 984
0
votes
1
answer
1k
views
What kind of standoffs work with this case?
I have a Chenbro PC61166 Xpider case which I got second hand.
The standouts for ATX mounting are missing, but where there would normally be screw holes for me to install common brass standoffs, ...
- 35.3k
7
votes
2
answers
21k
views
Why is -12V needed on an ATX power supply
Checking the standard ATX connector pinout it mainly gives out "standard" positive voltages, like +3.3VDC, +5VDC and +12VDC. There is one exception, pin 14, which actually gives out -12VDC:
Based on ...
- 273
2
votes
1
answer
2k
views
Can the Power button be configured as a combo?
In Mac, combinations of the power button (Shift+Power or double press it to restart) are possible, as if it's just a normal button on the keyboard. It can also be configured in Windows 8.1 and Linux ...
- 1,931
0
votes
0
answers
61
views
How to make that computer turn on by external power on?
I have remotely controlled power supply, and I wish to implement cold reboot with it, for cases of unrecoverable hangs.
Unfortunately, once power is off, computer is not turning on when power appears ...
- 12.3k
0
votes
2
answers
2k
views
Part Number for Motherboard ATX 24 Pin Male Header
The 24 pin ATX connector (male, housing) on my motherboard has been melted to the 24 pin connector from the PSU.
I will be replacing the motherboard's 24 pin ATX connector myself, but am not able to ...
- 375
0
votes
0
answers
428
views
ATX PSU: Pin 9 reads a lower voltage when plugged into motherboard
I'm pretty confident that the PSU is bad in this computer, but I want to understand what my multimeter is telling me. With the PSU plugged into the wall only, the multimeter says that pin 9 is a ...
- 29
0
votes
2
answers
5k
views
Can a motherboard work when only supplied with ATX12V?
I am thinking of making a silent NAS for 3-4 people. Today I bought:
4TB Western Digital HDD
2x4GB DDR3 204 pin RAM
Supermicro X10SBA motherboard which has 24 pin and 4 pin power connector.
Does 24 ...
- 149
5
votes
1
answer
2k
views
Is DELL's HP-P2507FWP PSU's 20-pin connector wiring non-standard?
My old PC's ATX PSU died and I got a replacement in the form of a DELL 250W Power Supply model# HP-P2507FWP.
It has the exact set of connectors (except for an additional, unused, 6-pin connector), ...
- 470
5
votes
3
answers
17k
views
Turning on ATX power supply with no load
There are some rumurs around the web that ATX power supplies should not be turned on with no load. I have a partially unstable PSU that I want to turn it on out of PC case and check the voltages with ...
- 574
-1
votes
1
answer
414
views
6-pins ATX power for PCI slots 2, 3, 4, & 5
I have EVGA’s Z77 FTW motherboard as described here: http://www.evga.com/support/manuals/files/visual/151-IB-E699_Visual_Guide.pdf
There are two inputs for 6-pins ATX power for PCI slots 2, 3, 4, and ...
- 1
2
votes
0
answers
1k
views
Form factor of ATX expansion slots
I am building my own computer case, but I am having difficulty finding the form factor specifications for the ATX expansion slots - in particular the maximum height of the slot and the spacing of the ...
- 770
17
votes
2
answers
92k
views
ATX power: 20 or 24 pins?
What is the difference between 20-pins ATX power cables and 24-pins ATX power cables for motherboard? I see that Cooler Master Silent Pro PSU has an extensible plug, showing 20 pins + 4 pluggable pins....
- 4,602
1
vote
1
answer
369
views
Is it possible to have an ATX and a mini ITX boards running under one (ATX) PSU?
Specifically - are there any ATX PSU's with double 24 pins, or some kind of adapters that would make it possible?
- 113
12
votes
3
answers
119k
views
Can I safely use a PSU with an ATX 12v 4-pin for a board that has a EPS 12v 8-pin?
There's many similar questions to this, and because the answers vary depending on the setup, I want to ask for my friend's specific setup.
He recently upgraded to a Core i5 gaming build, so he has ...
- 1,381
1
vote
2
answers
233
views
The swan song of an ATX PSU
My PC was unplugged for 3 weeks. Came back, plugged it into outlet and
turned it on, then came a mighty BANG and smoke. The PSU is (was) a 5.5 years old Antec TRUEPOWER II TPII-380 380W. Would this ...
- 519
16
votes
5
answers
5k
views
How much power the system is REALLY consuming?
I suspect that my ATX case's power unit from China provides FAR LESS power than it's supposed to. Is there a way to see (in real time) how much power the whole system is trying to consume and how much ...
- 233
3
votes
2
answers
908
views
Selecting a quiet ATX PSU
I currently have a Corsair CX430 V2 PSU in my desktop:
However, it's extremely loud, especially when I do any resource intensive work (running a VirtualBox instance, playing a game, or just on a hot ...
- 133
1
vote
2
answers
2k
views
ATX 12V too low?
Im noob at pc's but is 3.20V too low for ATX +12V?
CPUID Hardware Monitor readings:
CPU VCORE - Value: 1.49V; Min: 1.46V; Max: 1.51;
ATX +3.3V - Value: 3.19V; Min: 3.18V; Max: 3.19V;
ATX +5V - Value: ...
- 1,965
0
votes
0
answers
565
views
Diagnosing PSU/Motherboard issues with Shuttle's proprietary ATX connector
I have a Shuttle SN25P that won't power on at all - fans, no lights. The cable and power have been checked and the PSU switch is in the on position. I need to figure out if the motherboard or PSU are ...
- 649
3
votes
2
answers
22k
views
Can I use an ATX power supply to power an mini-ITX board?
My wife's computer has given up. I think the motherboard blew up. I'm thinking of replacing it with a cheap mini-ITX board with an Intel Atom processor on it, since all she needs the computer for is ...
0
votes
1
answer
2k
views
ATX Motherboard power connectors causing power-on failure?
So my problem is that my motherboard has enough space for the 24 pin motherboard power connector. However when I have plugged in all the 24 pins, my computer has failed to start. So then I reopened my ...
Rifatul I.
2
votes
1
answer
718
views
Will all 4 cores work if the PSU has 4-pin supply instead of EPS12V?
Motherboard: P7P55D-E PRO
Processor : i5-760
PSU : Gigabyte Superb 460
The PSU provides a 4-pin CPU connector; whereas the m/b has an 8-pin socket (2 sockets are covered/protected by a ...
- 1,824
0
votes
2
answers
4k
views
4-pin CPU power supply connector inversion?
I am currently trying to boot an Intel D915GAG motherboard fed by a Corsair HX450W. This PSU has two 4-pin processor power supply connectors available. I tried booting with either one of these plugged ...
- 25
1
vote
3
answers
14k
views
Computer won't turn on, how to diagnose why?
My computer, ASUS MB, ThermalTake PSU, won't turn on after shutting down last night.
Short of taking out the power supply and putting in a new one, are there any tricks to figuring out/fixing the ...
- 754
1
vote
2
answers
3k
views
Who makes quiet ATX horizontal cases?
Who makes quiet ATX horizontal cases?
I am building a new PC, but even the smallest mid-towers have room for 3 5.25" drives and even more 3.5" drives.
I am thinking a horizontal case just big ...
- 6,241