Compatible Power Supply suggestions

Fusion101a · 04-19-2007, 08:04 PM

Was given a free Asus P5VD2-MX Motherboard and I have everything to go with it except what appears to be a compatible power supply. The actual socket is like 24 pin and every ATX P supply i have is either staight 20 pin or has the extra 4 pins but won't fit in. Sorry for asking such a basic quesiton but it does seem to require a less common power supply. Can anyone point me in the right direction so i can order it online asap . Thx in advance :D

Tumbleweed36 · 04-19-2007, 08:10 PM

You can get by with a 20 pin supply in these, but before you go getting things all set up, it might be a good idea to tell us more about your total system specs and then tell us what brand, watts, and amps per rail your power supply is. That way, we can guide you better and quicker.

**TheMatt** · 04-19-2007, 08:40 PM

Hi,

Often, the extra 4 pins are detachable from the main connector. Make sure it is secured next to the main connector and then try to attach it as a 24-pin connector.

As Tumbleweed36 said, you can get by with only the 20-pin connector, but you are usually much better off plugging in the extra 4-pin connector.

**linderman** · 04-21-2007, 02:42 PM

the often referred to as "extra" four pins (24 pin vs 20 pin) are PCI express video card power for the motherboard feed to the PCI express video card ?????

you can get a 20 pin to 24pin adapter which has jumper wires from the 20pin wires over to missing extra four pins.

generally speaking though a 20pin PSU is getting obsolete, like Tumbleweed has requested, please submit the PSU maker and model along with the amps per rail which is found on a sticker on the side of the PSU.

http://www.pcdoctor-guide.com/wordpress/?p=3530

The 20-pin to 24-pin ATX adapters are pretty much worthless in reality. The reason for the move from a 20-pin ATX connector to a 24-pin ATX connector is to provide more overall power. Each individual wire can only supply so many amps. These "adapters" simply split some of the wires from the 20-pin ATX connector in order to end up with the 24-pin connector. These splitted wires cannot provide the full amount of power compared to a native 24-pin ATX connector. Also any adapter that is not native to the copper wire itself from the PSU increases the electrical resistance of the electricitry coming from the PSU, through the adapter, and to the component(s) it is attached to. This increased electrical resistance can result in lower voltages compared to a direct connection from the PSU without a adapter.

You cant / shouldnt run an SLI system off a 20pin PSU & the 24 pin adapter does not make up for the lacking PSU power especially at the 12volt side of the equation. The extra 4 pins actally deliver another rail of the PSU as I understand the equation.

04-19-2007, 08:04 PM	#1 (permalink)
Fusion101a Registered User Join Date: Apr 2007 Posts: 1 OS: XP	Compatible Power Supply suggestions Was given a free Asus P5VD2-MX Motherboard and I have everything to go with it except what appears to be a compatible power supply. The actual socket is like 24 pin and every ATX P supply i have is either staight 20 pin or has the extra 4 pins but won't fit in. Sorry for asking such a basic quesiton but it does seem to require a less common power supply. Can anyone point me in the right direction so i can order it online asap . Thx in advance :D

04-19-2007, 08:10 PM	#2 (permalink)
Tumbleweed36 Asst Manager Hardware Join Date: May 2005 Location: USA Posts: 13,298 OS: XP Professional	Re: Compatible Power Supply suggestions You can get by with a 20 pin supply in these, but before you go getting things all set up, it might be a good idea to tell us more about your total system specs and then tell us what brand, watts, and amps per rail your power supply is. That way, we can guide you better and quicker. __________________ ----------

04-19-2007, 08:40 PM	#3 (permalink)
TheMatt Moderator, Hardware Team Join Date: May 2006 Location: Boston Posts: 13,693 OS: Win 3.1, 98, NT 4.0, XP Debian 4.0, Kubuntu 6.06 My System Blog Entries: 3	Re: Compatible Power Supply suggestions Hi, Often, the extra 4 pins are detachable from the main connector. Make sure it is secured next to the main connector and then try to attach it as a 24-pin connector. As Tumbleweed36 said, you can get by with only the 20-pin connector, but you are usually much better off plugging in the extra 4-pin connector. __________________ - Matt M - KB1OSC - Folding@Home 85015 If TSF has helped you, please consider donating. If I have stopped responding to a thread, feel free to send me a PM with a link to the thread. It is advisable to subscribe to threads so you will receive updates when replies are posted. You can subscribe to threads from the "Thread Tools" Menu. »Memtest86 »Prime95 »UBCD »SpeedFan »NHC Personal »Everest »Sandra »PC Wizard »RivaTuner »ATi Tool Click here for Useful Articles and Guides

04-21-2007, 02:42 PM	#4 (permalink)
linderman Moderator, Hardware Team Join Date: May 2005 Posts: 13,535 OS: win 2000 pro / Win XP pro My System	Re: Compatible Power Supply suggestions the often referred to as "extra" four pins (24 pin vs 20 pin) are PCI express video card power for the motherboard feed to the PCI express video card ????? you can get a 20 pin to 24pin adapter which has jumper wires from the 20pin wires over to missing extra four pins. generally speaking though a 20pin PSU is getting obsolete, like Tumbleweed has requested, please submit the PSU maker and model along with the amps per rail which is found on a sticker on the side of the PSU. http://www.pcdoctor-guide.com/wordpress/?p=3530 The 20-pin to 24-pin ATX adapters are pretty much worthless in reality. The reason for the move from a 20-pin ATX connector to a 24-pin ATX connector is to provide more overall power. Each individual wire can only supply so many amps. These "adapters" simply split some of the wires from the 20-pin ATX connector in order to end up with the 24-pin connector. These splitted wires cannot provide the full amount of power compared to a native 24-pin ATX connector. Also any adapter that is not native to the copper wire itself from the PSU increases the electrical resistance of the electricitry coming from the PSU, through the adapter, and to the component(s) it is attached to. This increased electrical resistance can result in lower voltages compared to a direct connection from the PSU without a adapter. You cant / shouldnt run an SLI system off a 20pin PSU & the 24 pin adapter does not make up for the lacking PSU power especially at the 12volt side of the equation. The extra 4 pins actally deliver another rail of the PSU as I understand the equation. __________________ If you cant be polite and friendly; then please be silent. Last edited by linderman : 04-21-2007 at 03:32 PM.