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 ...

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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 ...
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57 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, ...
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223 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 ...
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Is it possible to combine fanless, flex-form and a power output more than 300 Watt in a ATX PSU? [closed]

For the construction of an embedded System I look for a fanless ATX Power Supply that is build in flex form-factor and has a power output more than 300 Watt. On the Internet I found a few power ...
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37 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 ...
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150 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 ...
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67 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 ...
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584 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 ...
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731 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), ...
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3k 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 ...
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298 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 ...
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329 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 ...
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16k 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 ...
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229 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?
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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 ...
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185 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 ...
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2k 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 ...
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777 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 ...
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1k 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: ...
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387 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 ...
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3k 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 ...
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1k 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 ...
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514 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 ...
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2k 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 ...
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4k 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 ...
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2k 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 ...
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402 views

Motherboard and power supply compatibility

I just bought a Gigabyte GA-P55A-UD3 mother board and an Antec BP550 Plus power supply. When I was connecting the ATX 12V connector from the power supply (which is two 2x2 connectors) I noticed that ...
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2k views

Can I plug a 8-pin EPS connector from the PSU to a 4-pin ATX motherboard?

The PSU for my motherboard just died and I was able to get a used one from a friend. Trouble is, this PSU I got from him doesn't have the 4-pin ATX power cord that powers the CPU. It only has an EPS ...
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841 views

Can a +5VSB supply rail value of 5.4V prevent a PC from starting

In the last few days my PC has refused to start. It's initial behaviour was to repeatedly try to power on until I hit the power switch on the power supply. It now exhibits one of two behaviours: ...
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440 views

Can I restart a PC remotely if it is unreachable (down)?

We have a warewulf cluster of about 20 nodes being standard PC boxes (I believe ATX, 4-year old) w/o hard drives - they boot from master machine via LAN. Some of the nodes tend to crash and we ...
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44 views

What form-factors do PSUs use nowadays?

I'm building a desktop and I'm going to get the SilverStone SST-ST50F 500W as my PSU. What form-factor is it? Is it ATX, following the motherboard form-factor or different?
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Why Have The System Builder Market Not Migrated to the BTX Form Factor from ATX yet?

I'm starting to build my first computer from the parts that I have purchased and a question that had been nagging me for the past few weeks was why the ATX form factor is still currently used when ...
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615 views

Sun Ultra 24 compatible components - PC self build [closed]

I'm considering buying a Sun Ultra 24 workstation case, however I'd like to know the limitation of such a case. Such as; Compatible motherboards, and whether a full length pci-x express board would ...
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136 views

Suggestion for a multimedia chassis with ATX or mATX mainboard support?

I want to build a new multimedia system. For this i would like to use some multimedia chassis and put a regular ATX or mATX mainboard inside. One other limitation of the chassis is that the height ...
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958 views

2 “P4” power connectors *AND* an 8 pin EPS connector — all necessary?

I recently bought an Arima SW350 motherboard. It supports 16 ddr simms as well as 2 opteron 2xx CPUs, so I imagine it may have pretty heavy power requirements... It has a 24 pin ATX power ...
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329 views

ATX power supply with embedded homeplug av adapter

Are there ATX power supplies which have homeplug av (networking over power lines) adapter built-in? I'd like to have one cable to provide power and networking instead of two. Thanks,
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Do 24pin motherboard wires have to be in a certain order?

I am wanting to sleeve all the wires in my new PC. On my 24pin motherboard connection cable, I must remove the end plastic connector piece from all the wires to sleeve them all individually. I have a ...
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1k views

Is the 4pin atx power plug required?

I know the answer is probably a resounding YES, but I just wanted to double check. I just purchased a new chassis for my PC and now my 4pin cpu power plug doesn't reach. I'm wondering if the 4 pins ...
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387 views

Choosing between two ATX and Micro ATX motherboards (GA-P55M-UD2 and GA-P55-US3L)

I need help in deciding whether to buy a GA-P55-US3L or GA-P55M-UD2 (Comparison). They cost about the same and have the same features (or at least the ones I am interested in) but the UD2 is mATX. ...
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5k views

Can I use an ATX PSU, ATX case and MicroATX motherboard together?

I am building a new PC (my first one) at the moment. I have an ATX PSU and ATX case already, and my budget for new parts is rather limited. The only motherboard in my price range that does what I want ...
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1k views

ATX Gateway Tower Case - Replacement Power Supply

I have been considering replacing the CPU Power Supply on my 2002 Gateway machine. The original OEM power supply maximum rating was 240 watts. My Graphics card has been upgraded to one that ...
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2k views

Building computer: Casing for peripheral sockets is a pain?

I have a casing the covers the spacing between the peripheral socket which is standard to have when you buy a motherboard. My problem with these covers is that they have spokes that pushes the ...
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801 views

Is it possible (and safe/reliable/non-damaging) to use a 20-pin ATX PSU with a 24-pin ATX motherboard?

I have a reasonably-decent old 20-pin PSU which I want to use on a newer 24-pin ATX motherboard. I see that the ATX page on wikipedia mentions that 24-pin ATX is backward-compatible, and I can find ...