Analysis of information sources in references of the Wikipedia article "Power supply unit (computer)" in English language version.
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The lemon-market in PC power supplies has now officially become bad enough that no-name generic "500W" PSUs may actually barely even be able to deliver 250 watts. A realistic constant rating for these units is more like 200 watts. So the capacity inflation factor's hit 2.5, and it's still rising.
The lemon-market in PC power supplies has now officially become bad enough that no-name generic "500W" PSUs may actually barely even be able to deliver 250 watts. A realistic constant rating for these units is more like 200 watts. So the capacity inflation factor's hit 2.5, and it's still rising.
Add ATX12V power connector information to Table 3
Floppy Drive Connector
Changes from Version 2.01 to Version 2.02 [...] Section 4.2.1—Added new section to define Aux Power Connector
This recommendation has been removed if using a power supply designed to be compliant to ATX12V Design Guide Version 2.0 or greater.
Our generic 500 W power supply died when we tried pulling 275 W from it, so the maximum amount of power we could extract was 250 W – half the labeled amount!
The dedicated 12V CPU connectors on the motherboard are either a single 8 pin (2x4) connector, or one or two 4 pin (2x2) connectors, detailed in Section +12 V Power Connector. These are often referenced as EPS12V connectors.
Table 5-8: +12 V Power 4 pin Connector Pin-out
Table 5-9: +12 V Power 8 pin Connector Pin-Out
On the front of the box it says "Triple Rails for +12V" and then goes on to say 'Intel ATX 12V Version 2.0 & EPS 12V Version 2.1". It turns out from our investigation that the above power supplies do not meet the ATX12V or EPS12V standards as the packaging claims.
{{cite web}}: CS1 maint: deprecated archival service (link)Our generic 500 W power supply died when we tried pulling 275 W from it, so the maximum amount of power we could extract was 250 W – half the labeled amount!
Add ATX12V power connector information to Table 3
Floppy Drive Connector
Changes from Version 2.01 to Version 2.02 [...] Section 4.2.1—Added new section to define Aux Power Connector
This recommendation has been removed if using a power supply designed to be compliant to ATX12V Design Guide Version 2.0 or greater.
The lemon-market in PC power supplies has now officially become bad enough that no-name generic "500W" PSUs may actually barely even be able to deliver 250 watts. A realistic constant rating for these units is more like 200 watts. So the capacity inflation factor's hit 2.5, and it's still rising.