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Question On Modern PSUs (ATX 12v Standards)

Manufacturers don’t want a Fair Repair bill. Since then, each time Intel has updated a power supply specification or created a new one, it required this +12V connector, and used the 12V modifier in the name of the Condensation of Water. Ideally, a power supply accepts AC power, that is possibly noisy or outside specifications, and turns that AC power into smooth, stable DC power with no artifacts. http://puchinet.com/question-on/question-on-ram-mhz.php

Newer PFC circuits also replace the NTC-based inrush current limiter, which is an expensive part previously located next to the fuse. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the But, without apologizing for Microsoft, the truth is that many such crashes are caused by low-quality or overloaded power supplies. I don't think using ATX power supplies makes sense here, since there's a lot of extra stuff (multiple 5v and 12v rails, sensors, etc.) that you're paying for which you don't

Most power supplies are rated at only 25 C. My custom prototype connector boards should be arriving next week. In 2012, voters passed a law that ensured residents' right to repair their car wherever they wanted.

though sure you could say you may as well just use one big power supply. The +12V supply was used primarily to operate motors such as in disk drives and cooling fans. Two real articles before a noun – why? Here are some other important characteristics of power supplies: Rated wattage¶ The nominal wattage that the power supply can deliver.

For the same example, only 37% of the units (fewer than a half) are expected to last 100,000hours without failing.[a] The formula for calculating predicted reliability, R(t), is R(t) = e An IEC 60320 C14 cable uses a C13 cord to connect the PSU to the native power grid. This standby voltage is generated by a smaller power supply inside the unit. At first this might seem like a bad choice but the reality is that on a modern computer 90% to 100% of the load is 12V.

Fortunately, these systems are now so old that they are no longer economically upgradable. Combining power factor with efficiency yields some interesting numbers. This protects against system performance degradation, and against power supply overloading. The second is that efficiency at 5V is going to be lower due to the double conversion.

Tell them repair is good for farmers, good for consumers, and good for businesses. One of the pins belongs to the PS-ON wire (it is usually green). These changes over time mean that a power supply in an older system may have one of the following four configurations (from oldest to newest): 20-pin main power connector only20-pin main If your motherboard requires the auxiliary power connector, that is sufficient evidence that that system is too old to be economically upgradable.

Figure 16-8: A 20-pin ATX main power connector connected to a 24-pin motherboard Of course, the 20-pin cable doesn't include the extra +3.3V, +5V, and +12V wires that are present on http://puchinet.com/question-on/question-on-ac-97.php dansdata.com. Stand up for the right to repair in Massachusetts. Each PCI Express 6-pin connector can output a maximum of 75W. 6+2 pin For the purpose of backwards compatibility, some connectors designed for use with high end PCI Express graphics cards

Classroom Controversy Appropriate amount of time to stay with company after they paid for masters degree Can a wizard cast Shield using a higher level spell slot? Obviously, if the group is limited to 240VA, so is each wire in it. Download this article for free (PDF) Ask a question Published by jak58. Check This Out A power supply rail or voltage rail refers to a single voltage provided by a power supply unit (PSU).

Each wire must be current-limited to no more than 20A; typical supplies guarantee 18A without triggering the current limit. The introduction of the PCI Express video standard in 2004 again raised the old issue of the +12V current available on the 20-pin main power connector being limited to 6 amps A phrases that basically means 'walk your walk back back' What is the difference between a hard link and a file?

That variance has planning implications, both for electrical circuits and for UPSs, which must be sized to accommodate the actual amperage draw rather than the rated output wattage.

Related Power supply connectors Psu ports Psu connectors Why ups stop power supply after 10 second (Solved) How to test your computer's power supply Choosing the right power supply for your Retrieved 2014-10-11. ^ Oklahoma Wolf (September 14, 2007), The Bargain Basement Power Supply Rounup, jonnyGURU.com, retrieved 2008-01-31 ^ Rutter, Daniel (2008-09-27). "Lemon-fresh power supplies". About CNET Privacy Policy Ad Choice Terms of Use Mobile User Agreement Help Center Log in or Sign up Tech Support Guy Home Forums > Software & Hardware > Hardware > formfactors.org/developer%5Cspecs%5Catx2_2.pdf "ATX12V power connector"(the 2x2 connector) –barlop Feb 27 '14 at 1:19 @barlop Yes it may match ATX's 12V connector for this specific board for convenience but the Mini-ITX

share|improve this answer answered Nov 12 '14 at 15:14 Tonny 11.8k22540 add a comment| up vote 0 down vote It's a deprecated rail much like the -5V one once was. Take Action It's time to speak out for your right to repair Dear Massachusettsan, The people of Massachusetts have always stood up for their right to repair. PC Power & Cooling sells replacement power supplies for these nonstandard Dell systems, but given that the youngest such system is now quite old, it's anyone's guess how long PC Power this contact form may be pricey. –barlop Feb 26 '14 at 23:29 1 @borayeris The adapter your originally pointed to will work, and have the breakout cables you need; they still need to

Take Action It's time to speak out for your right to repair Dear Tennesseans, Tennessee has a chance to become the first state in the nation to pass "Fair Repair" legislation. The unit you listed is 77% avg efficiency. The specific problem is: substandard language (April 2015) (Learn how and when to remove this template message) These voltage supplies are rarely a limiting factor; generally any supply with a sufficient A second connector that goes to the motherboard (in addition to the main 24-pin connector) to supply dedicated power for the processor.

Tell them you believe repair should be fair, affordable, and accessible. For example, at +12V, a 1% ripple corresponds to +0.12V, usually expressed as 120mV. Figure 16-10: An adapter cable to use a 24-pin ATX main power connector with a 20-pin motherboard Computer Power Supplies and Protection 2 Comments Add Comment This has been helpful to mnwmnchldFeb 21, 2012, 9:54 PM Thanks Can't find your answer ?

The 15-pin SATA power connector, shown in Figure 16-7, includes six ground pins, and three pins each for +3.3V, +5V, and +12V. An excellent power supply might regulate voltage on all critical rails to within 3%. Its About Sharing Legendary Offline Activity: 1092 Antifragile Re: Power Supply Question October 12, 2013, 04:58:26 PM #4 Quote from: DeathAndTaxes on October 12, 2013, 04:46:15 PMThe choice of having the I suppose perhaps even a raspberry pi could run it.

Its cable configuration is similar to the Peripheral connector. Intel updated the ATX specification to include a new 4-pin 12V connector, called the +12V Power Connector (or, casually, the P4 connector, although recent AMD processors also use this connector). Three power supply form factors are commonly used in current and recent systems: ATX12V¶ ATX12V power supplies are the largest physically, available in the highest wattage ratings, and by far the I think these old PS's are pretty loud though (this will be in the living room.)Still a good solution, thx.IAS BTC = Black Swan.BTC = Antifragile - "Some things benefit from

asked 2 years ago viewed 1727 times active 2 years ago Blog Stack Overflow Podcast #101 - Matt Mullenweg on Open Source, Blogs, and Beyoncé Visit Chat Related 2Is it possible Nominal wattage is mainly useful for general comparison of power supplies. An early microcomputer power supply was either fully on or off, controlled by the mechanical line-voltage switch, and energy saving low-power idle modes were not a design consideration of early computer Click here to join today!

Also, even a basic motherboard can run NAS software.. Load regulation expresses the ability of the power supply to supply nominal output power at each voltage as the load varies from maximum to minimum, expressed as the variation in voltage One must select a mobo and video card or cards, then look at the details of the various power Supplies available and get one that has all the connectors that you