Charger Psu
how to power a motherboard using a laptop adapter?
I plan on making a small media center using an 8MB linux OS with network capabilities. So i got my hands on an old P2 computer which i plan to disassemble and move the motherboard in a smaller, home made, plexiglass case. To save space (and reduce noise) i plan on using a compact flash instead of a hdd drive and it would be great if i could power it with a laptop charger, instead of an atx (not atx-at) PSU. (that would really save space)
I’ve found over the internet the 20-pin connector scheme of the old atx, but i can’t really figure out how to wire them.
You would need a DC-to-DC converter that can take in whatever your power brick produces and provide all the voltages that your computer needs. Links go to various examples.
Most of these are intended for automotive use and take 11-24V in. To calculate the current your external supply will need to be able to supply, take the power consumed by your total system and add 25%. So if your motherboard needs 100W, you’ll want a 125W input, which at 12V is about 10.5A.
If you find one that can take 24V in, that will make your life a lot easier. That will mean that the wiring will only have to supply half the current. Outputs in the 24V range are widely available, and that will make your external ‘brick’ cheaper as well.
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RC15 FDC Charger +PSU+12v CAR CABLE for FD-268A FD-268B $18.00 |
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RC15 Charger +PSU+12v CAR CABLE for FD-268A FD-268B $18.00 |
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RC9 Desktop Charger + PSU for PX777 PX888 PX328 $18.00 |
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FDC desktop charger for FD-268A FD-268B with PSU $7.30 |
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Radio charger PSU DC 12V 1.0A 2.5/5.5 MM UK plug $6.90 |
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1x Desktop Charger + PSU RC9 for PX328 PX777 PX-888 PX-888K $18.00 |
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LINTON Desktop Charger PSU for LT-2268 LT-2288 LT-3260 $15.89 |
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Original Charger for Weierwei VEV-3288S VEV-1000 + PSU $14.80 |
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CHARGER for FD-450A FD-160A FD-460A FD-150A RC11+PSU $10.00 |
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Desktop Charger + PSU for TG-UV TGUV TG-UVS RC28 $16.15 |
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RC14 Desktop Charger + PSU for kg-669 kg689 kg679 $13.00 |
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5V DC SUPPLY FROM 1 X AA BATTERY! DC/DC. PHONE CHARGER, LC METER PSU $7.45 |
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WEIERWEI VEV-3288S Desktop Charger + PSU vev3288s RC10 $7.80 |
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Desktop Charger + PSU for Lisheng CL-185 RC29 $14.20 |
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Desktop Charger + PSU for WOUXUN New Version RC14 $15.88 |
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FDC Charger + PSU FOR FD-268A FD-268B + 12v CAR CABLE $18.20 |
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Desktop Charger + PSU for QUANSHENG TG-5A RC13 $15.14 |
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Desktop Charger + PSU for WEIERWEI VEV-3288S RC10 $20.20 |
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LINTON Desktop Charger PSU for LT-2268 LT-2288 LT-3260 $18.14 |
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WONXUN Desktop Charger + PSU for KG-659 KG-669 KG-679 KG-689 KG-UVD1P KG-833 $10.80 |
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WONXUN Charger for KG-659 KG-669 KG-679 KG-689 RC14+PSU $10.90 |
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BaoFeng Original desktop charger + PSU for UV-5R dual band radio $17.99 |
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FDC desktop charger for FD-268A FD-268B with PSU $14.30 |
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Desktop Charger for PUXING PX-777 PX-888 radio + PSU $13.60 |
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Desktop Charger for Weierwei VEV-3288S VEV3288S + PSU $19.00 |
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Desktop Charger for Weierwei VEV-3288S VEV3288S + PSU $9.90 |
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Original Battery Desktop Charger for BAOFENG UV-3R UV3R Dual Band radio + PSU $12.50 |
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UV-3R_Mark II BLUE Color Dual display w/USB PSU & USB charger cable $42.30 |
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UV-3R_Mark II (RED) Dual display w/USB PSU & USB charger cable $42.30 |
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BAOFENG UV-3R_Mark II Camouflage Dual display w/USB PSU & USB charger cable $42.30 |
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UV-3R_Mark II YELLOW Color Dual display w/USB PSU & USB charger cable $42.30 |
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PUXING Original Desktop Charger/PSU RC9 for PX777 PX888 PX328 PX888K $18.00 |
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RC44 TYT Charger with PSU fit for TH-UVF1 TH-F2 $15.00 |
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RC9 + PSU Charger for PX-777 PX-888 PX-328 PX-728 PX777 $18.00 |
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PSU-351201 Radio charger PSU DC12V 1.0A UKplug $7.00 |
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PSU-351204 Radio charger PSU DC 12V 1.0A AUS plug $7.00 |
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PSU-351203 Radio charger PSU DC 12V 1.0A euro plug $7.00 |
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PSU-351202 Radio charger PSU DC 12V 1.0A 2pin plug $7.00 |
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Original Desktop charger + PSU for Weierwei VEV-3288S VEV-1000 radio $14.90 |
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WEIERWEI VEV-3288S Desktop Charger + PSU RC10. $7.80 |
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LINTON Charger w/AC PSU for LT-3260 LT-2268 LT-3268 RC1 $11.44 |
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LINTON NI-Mh Charger W/ PSU for LT-3288 LT3288 RC2 $9.62 |
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RC54 TYT TH-2R RT-26 DESKTOP CHARGER W/ PSU $11.00 |
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charger PSU DC 12V 1.0A 2.5/5.5 MM plug 2pin plug 02 $7.25 |
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Radio charger PSU DC 12V 1.0A 2.5/5.5MM plug UK plug 01 $7.24 |
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