![]() ![]() When you want to upgrade your system to a Pentium 4 (P4) system, you use this Motherboard P4 12V 4-Pin to Molex 4-Pin Power Adapter Cable. What voltage is supplied by a Molex connector All of the additional connections, known as Molex connectors, that protrude from the power supply are for drives and deliver +12V (yellow) and +5V (red) power in addition to two ground wires (black). The voltages produced by AT/ATX/ATX-2 power supplies are:Ī power supply can be easily changed and are generally not expensive, so if one fails (which is far from uncommon) then replacement is usually the most economic solution. The claim that a Molex connector provides +3.3V, +5V, and -12V voltages is untrue. used voltage level is 3.3V) EX3.3 / EX5: 3.3V/1A and 5V/1A power supply. ATX-2 Power Supply - commonly in use today. We do not actually use Molex connectors but we are supplied by a Korean vendor.To measure the +3.3V: Use a Serial ATA connector and a 4-pin Molex. ATX Power Supply - still used in some PCs. your new power supply, check the red power supply voltage switch setting.That Molex cable provides the extra +5V and +12V (although not +3.3V). AT Power Supply - used in very old PCs. A power supply with tight load regulation delivers near-nominal voltage on all.There are 3 types of power supply in common use: to supply three different voltages - 3.3 V, 5 V, and 12 V.ach voltage is. The power supply should be able to power up and. 135mm fan, Connectors: 8pin mainboard (4+4pin), 4 (4pin)molex, 5 SATA. PCs use a 5-V/3.3-V current to support onboard electronics. Voltages: +12V41A, +5V18A, +3.3V18A, +5VSB2.5A. The more components (hard drives, CD/DVD drives, tape drives, ventilation fans, etc) you have in your PC the greater the power required from the power supply.īy using a PSU that delivers more power than required means it won't be running at full capacity, which can prolong life by reducing heat damage to the PSU's internal components during long periods of use.Īlways replace a power supply with an equivalent or superior power output (Wattage). But in the future, 3.3 volt drives may become common so you need to be careful. A default 3.3V and +5V sense line should be implemented pin 13 and pin 6of the connector. Most power supplies are dual-voltage and compatible with both.
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