Sirsalliyan Small Air Compressor

Portable Compressor 12v

DIY Guide- Using Dual PSU to power a single PC

DIY Guide-Using Dual PSU to power a single PC.

So you got your processor pumping to 4Ghz+,A Raid 0 Array too!,Good.
What? your 550W PSU hesitating to run those Voltmodded 7800 GTX SLi?
Random reboots after setting up water cooling?
Worry Not!!

This guide shows how to use two ATX PSU to Juice up your Ultra end PC.
Double the power,Double the fun,Right?

#Disclaimer:As with every good guide, lets start with a Disclaimer.This mod includes playing with Dangerous voltage levels,tools that may hurt or kill you.PSU have High Uf capacitors installed, these store current and can possibly paralyse or kill a fellow even when turned off!.Unknowingly you may void the hell out of any warranty that may be present.Read the whole guide carefully before attempting any thing.Proceed at your risk,I am in no way responsible for any mishaps due to attempt or use of this guide.If you are struck at some point,I am here at bhvm333@fastmail.fm ,ready to help you.

----------------------------------------------------------------
#Method1-'Relay and brother' method.(I call it so.)

#Purpose-This method uses two PSUs.One will be called as PSU1 that will power the motherboard(Yes those 7800GTX too).Other PSU(PSU2) will be used to keep those RAID arrays,DVD burners,Fans,Lights and water cooling pumps turning.Sounds quite easy?,but the problem is that the PSU2 will not boot,as it is not connected to the Mainboard,and from there to the power swicth.Read on!.

#What you need-
1.Good quality ATX PSUs,diffrent wattages and ampere ratings won't hurt.
2.Some wires.
3.Wire strippers.
4.Simple 12V dc relay,easily found at automotive spares stores.(High quality,please!)
5.Insulating tape.
*Optional-(These things can save the warranty!!)
6.One ATX 20/24 pin Female connector(I pulled out from a junk board) 
7.One 4 pin Female Molex connector(I got from a burnt case fan)
8.Heat Shrink tubing.
9.Soldering iron and wire.

#Getting hands dirty-
1.Firstly get the relay and solder/tape wires to all four points on the relay,shown here(you may use diffrent color codes)-
>+12V=Yellow
>Ground=Black
>Switch short1=Green.
>Switch shotr2=Blue.
Put heat shrink tubing or Tape on the joints.

2.Find the 4 pin Female Molex connector.Connect the +12v&Ground wires from the relay,respectively to the yellow and black wires on the Female molex.Cover the joints as usual.
OR
Cut a Molex connector from PSU1,connect the yellow and black wires directly 'From' PSU1 'To' the respective points on the Relay.(Forget about any warranty now)

3.Get the Female ATX 20 pin connector.Connect it to the Male 20 pin connector of PSU2.

4.Look for a Green wire in the bunch,notice on which pin, among 20 Pins it is connected.Mark this pin on the Female connector.Also mark any one of many black wire connecting pins on the same connector.There are many black wires,so spotting them is easy.

5.Disconnect the connectors,keep PSU aside for a while.

6.As you know where the green and black wires are present on the Connector,Solder green and Blue wires to the Detached Female connector according to the markings.Tape them as usual.

7.Solder these newly joined green & Blue wire to the respective points on the Relay(any of Switch short)
OR
Cut the Green and any of black wires from PSU2 ATX20 pin connector.Join these wires directly to the 'swicth short' points on the Relay(Voids warranty)

PSU are ready!

#Connections-
1.Connect the ATX 20 pin connector from PSU1 to the Mainboard.

2.Connect P4 +12v ATX 4 pin(Square)connector from PSU1 to the Mainboard.

3.Power all molex devices like HDDs,DVDs,Fans,etc from the PSU2.

(You are done if you did not use optional connectors and joined the wires directly)

4.Join recently made ATX 20 pin Female Connector to PSU2,We have already joined it to the 'Switch short' pins on the relay.

5.Plug in 4 Pin Female Molex,we just made, to the free molex connector of PSU1.Those wires will power the Relay.

6.Connect both PSU to the wall sockets(or UPS)

#Powering UP!-
If everything went in order,the PC will boot as usual.It will be only more stable than before!!.You will hear the Relay click when it starts.That says it is alive!.
Now What?Stop admirng and start pumping VCore!!!

#Beneifits of 'Relay and brother' method-
1.You have much more power now.Two 500W PSU can give 1Kw(!!!) of blasting power in this way.
2.You are using the connectors hence,not voiding the warranty if done correctly.
3You can remove this setup in a Jiffy.
4.After disconnecting,you can use PSUs just as normal.
5.This system is very portable,Just move the Realy,with both connectors where you need them!

#The Math behind-Overclocked components need much more power than usual.On some day you may hit on the the fact that even 550W PSU is unable to maintain stable voltages.The idea is simple,'Divide and Rule'.We are dividing the load upon two PSUs that will naturally give more power and stablity than single unit.Every standard ATX PSU have a Green wire that signals 'Power on' to the PSU when computer boots up.This wire is connected through the motherboard to the power switch on the cabinet.As we want to turn on second PSU too,I used a relay that will act as an automatic power on swicth.This relay consumes power from PSU1 Molex connector.When the PSU1 boots up,Relay gets activated alongwith.This relay then turns on PSU2 by shorting its Green and Ground wire.PSU2 boots up as a result.All this process happens in a splitsecond,both PSUs appear to boot simultaneously.
SIMPLE!!

#Important Tips-
1PSU store enough current that can give a nasty shock if you are not careful.Disconnect the PSU from wall socket,then press the PC boot swich once,this will discharge any charge that may be stored.Turn on the monitor too,if it is plugged through the PSU.I strongly recommend rubber gloves and foot wear though.

2.Two PSU may not fit in a regular case.They will also generate much more heat(Which may hamper overclocking).You may want to keep the PSUs outside the case and run only the needed wires into the case.

3.If you are keeping PSU outside the Case,Fit a nice 120mm Fan in the empty area,where PSU generally fits.This will greatly help the airflow.

4.If somehow you managed to fix two PSUs in the case,bundle off the wires,as there will be a big mess.

5.Relay is the heart of this system,Use only high quality Relays to ensure clean power.I suggest the ones that are used to control Car A/C Compressors.

6.All joint should be very tight,use Heat Shrink tubing wherever possible.

7.Read carefully where I have said PSU1 and PSU2, any mistake here and you may blow up the component.

8.Window mod the externally placed PSUs to add a GeekY touch.

About the Author

Hello !, This is MrSparks.
I am intrested in making friends all over the globe.
I'll be pleased to chat with you ! Any of your Technology related queries, Suggestions,help requestes are welcome

Portable Electronic Car Air Compressor Tire Inflator with 5-LED Light (12V) $39 - With 0~150 psi pressure gauge- Easy to use - just plug into your car cigarette lighter for power, slip universal adapter over tire valve and you are ready to inflate- Perfect for filling up car tires, bike tires, motorcycle or ATV tires, balls, or filling up inflatable toys- Built-in white 5-LED flash light- Comes with ball Inflator connector- Powered by your car cigarette lighter (DC 12V)- Power cable length: 2.8m

Superflow 120 Volt Portable Air Compressor $59.95 110V AC 125 PSI Air Compressor (ETD Certified) Power required: DC 12V 10A Material: ABS Size of Unit: 10.4" (L) x 6.2" (W) x 5.9" (H) Color of unit: Black   Includes 9.6 Ft Cord with plug 0.8ML Air hose 2 Nozzle adapters for PVC toys 1 Sports needle for balls Pressure gauge

Respironics RDD480 MiniElite Portable Compressor Nebulizer System $89.99 At Allergy Be Gone, we know that a nebulizer is sometimes a necessity in living with allergies. And we also know that having a nebulizer can mean missing out on favorite activities due to being tied down to bulky machines. That is why we proudly offer the Respironics RDD480 MiniElite Portable Compressor Nebulizer System! This system is lightweight, compact, and designed for convenience. Weighing less than two pounds, this unit can be plugged into the wall, into a car charger, or used with a rechargeable lithium ion battery. (Battery not included.) This set includes the Mini Plus high efficiency reusable nebulizer, a carrying case, a car charger, spare filters, and an instructional DVD. Quit feeling tied down to your nebulizer and start enjoying life today! Product Description: The MiniElite is the newest of Respironics' compressor nebulizer systems, complimenting the conventionally powered Inspiration 626 , Inspiration Elite and Mister Neb systems. The MiniElite compressor nebulizer system is compact, lightweight, and designed for patient convenience. It can be powered by three versatile power sources - 110V AC, 12V DC (car) and an optional rechargeable lithium ion battery. The freedom to choose when and where patients take their aerosol treatments makes the MiniElite an ideal daily traveling companion. The compressor weighs less than a pound and less than 1.4 pounds with the optional rechargeable lithium ion battery attached.    View the Respironics RDD480 Sales Brochure [Download: 192Kb .pdf, 2 pages]

Respironics RDD483 MiniElite Portable Compressor Nebulizer System with battery $199.99 Feeling bogged down by a bulky nebulizer machine? Switch to the Respironics RDD483 MiniElite Portable Compressor Nebulizer System from Allergy Be Gone! As the newest member of the Respironics’ line of compressor nebulizer systems, this machine gives you the same high quality you know and trust. Enjoy the freedom of this compact machine featuring a rechargeable lithium ion battery. The compressor itself weighs less than a pound, making it perfect for those on the go. A wall plugin option and a car charger option allow you to refresh the battery power wherever you are. The Respironics RDD483 MiniElite Portable Compressor Nebulizer System from Allergy be Gone is perfect for those who travel. Product Description: The MiniElite is the newest of Respironics' compressor nebulizer systems, complimenting the conventionally powered Inspiration 626 , Inspiration Elite and Mister Neb systems. The MiniElite compressor nebulizer system is compact, lightweight, and designed for patient convenience. It can be powered by three versatile power sources - 110V AC, 12V DC (car) and an optional rechargeable lithium ion battery. The freedom to choose when and where patients take their aerosol treatments makes the MiniElite an ideal daily traveling companion. The compressor weighs less than a pound and less than 1.4 pounds with the optional rechargeable lithium ion battery attached.

Portable Car Auto Tire Electric Air Compressor 12 Volt $28.49 Description:Robust and durable design 12 Volt Air Compressor is perfect for your cars, bikes, footballs and inflatable toys.This Auto Air Compressor is easy to use, just plug into your car cigarette lighter for power, slip universal adapter over tire valve and you are ready to inflate (adapter and not included).Portable Air Compressor with built-in pressure gauge that reads in lb/in and kg/cm bar.It feaures plastic construction for light weight and easy portability.Suitable for DC 12V vehicle ONLY!Maximum Pressure: 300 PSIPower Cable Length: ~257cmHose Length: ~39cmDimension: ~16(L) x 7.9(W) x 13(H)cmWeight: 644gPackage Included:1 x Car Air Compressor

Respironics RDD490 MicroElite Portable Compressor Nebulizer System $125 Respironics RDD490 MicroElite Portable Compressor Nebulizer System

Resun MPQ-905 100lpm 12V DC Air Compressor Pump $105.26 Resun MPQ-905 12V DC Air Compressor Pump 100lpm

Measurement Limited MS5540 Trademark Tools Portable Air Compressor Kit with Light $43.81 Air Compressor with Light is a professional quality tool that makes checking your tire pressure a snap. Driving with correctly inflated tires is important for several reasons it increases safety reduces tread wear improves handling and ride performance and better fuel economy. Power required: DC 12V 10A. With light and pressure gauge. 10 foot cord with plug. 20 inch Air Hose. 2 Nozzle Adapter and Sports Needle. Size: 7.9 (L) x 4.0 (W) x 5.5 (H).

Challenge Xtreme Rechargeable Engine Starter and Compressor. $69.99 Charge time to charge internal battery up to 30 hours.Suitable for petrol engines up to 1800cc and diesel engines up to 1400cc.LED status indicators.Heavy duty booster cablebooster cable length: 1.2m.Built-in light.400 amp booster current to assist engine starting.3 compressor nozzles suitable for car tyres inflator/deflator for air beds and other inflatable items.Requires full charge before use.Maintenance free sealed lead acid battery.Accessories included:12V DC rechargeable portable power station.12V DC accessory socket (DC charger included).12V power lead.AC adaptor.Air compressor.100psi compressor power and 7 Bar compressor power.Additional adaptors: Inflator/Deflator.

VIAR 00015 Portable Compressor Adjustable TieDown Strap $23.62 Secure your portable compressor. Complete with steel brackets; hardware included.

Pari Trek Compact Compressor Nebulizer System with AC Adapter $300.71 Features of the Pari Trek Compact Compressor Nebulizer System: Includes: compact compressor, reusable nebulizer, carrying case, ac adapter, air filter, wing tip tubing, portable power kit, power cord, rechargeable battery and 12v dc adapter (for use in RV.auto or boat).

T-Max Portable Air Compressor $147.21 T-Max Portable Compressors in stock now! Read T-Max Portable Air Compressor customer reviews. AutoAccessoriesGarage.com has the best selection of T-Max Air Compressors at the lowest prices around. T-Max Portable Air Compressor are chosen by auto enthusiasts everywhere to personalize their vehicles. T-Max Portable Air Compressor available now at AutoAccessoriesGarage.

T-Max Portable Compressor 47-3850 $147.21 T-Max Portable Compressors in stock now! Read T-Max Portable Compressor 47-3850 customer reviews. AutoAccessoriesGarage.com has the best selection of T-Max Air Compressors at the lowest prices around. T-Max Portable Compressor 47-3850 are chosen by auto enthusiasts everywhere to personalize their vehicles. T-Max Portable Air Compressor available now at AutoAccessoriesGarage.

Viair 90P Portable Compressor Kit $78.95 Viair Portable Compressors in stock now! Read Viair 90P Portable Compressor Kit customer reviews. AutoAccessoriesGarage.com has the best selection of Viair Air Compressors at the lowest prices around. Viair 90P Portable Compressor Kit are chosen by auto enthusiasts everywhere to personalize their vehicles. Viair 90P Portable Compressor Kit available now at AutoAccessoriesGarage.

Omron CompAir Battery for NE-C30 Compressor $59.96 Battery for the CompAir Portable Nebulizer/Compressor.

VIAIR 70P Portable Compressor Kit $43.99 70P is a very capable, 15% duty cycle portable compressor that can be operated up to 20 minutes (@ 35 PSI). Recommended for passenger car tires.

VIAIR 90P Portable Compressor Kit $79.99 90P is a very capable, 15% duty cycle portable compressor that can be operated up to 20 minutes (@ 35 PSI). Recommended for tires up to 31 inches.

EdgeStar 12V DC Portable Fridge/ Freezer $1351.26 Model: FP861Operates as a portable freezer or refrigeratorEasy to read, easy to use control panelRange: Negative 8-degrees F to 50-degrees FVoltage power (AC or DC)12/24 volt DC power lead; 6-foot detachable power cord115 volt AC power lead; 8-foot detachable power cordFlash Freeze function rapidly cools the unit to negative 8-degrees F Durable and rugged designFloor drainInsulated lidRounded edges make it safe around the familySide-grip comfort handles for easy transportCompressor based cooling method freezes faster than Thermoelectric counterpartsApproval: ETLAC power: 80W / 115V / 60Hz / 1ALarge basket dimensions: 12.8125 inches high x 18.9375 inches wide x 15.5625 inches deepOutside Dimensions: 23.875 inches high x 28.125 inches wide x 17.625 inches deep

ViAir 300P Portable Compressor Kit 30033 $149.99 This small but powerful compressor is able to fill 33 in. tires from 15 to 30 psi in about three minutes ViAir 300P Portable Compressor Kit 30033

Koolatron 400209 12V Portable Lunchbox Stove $44.99 Koolatron 400209 12V Portable Lunchbox Stove

SuperFlow? 12V MaxVolume Air Compressor $174.95 The powerful SuperFlow? MV90 is a sturdy and rugged air compressor manufactured for truck, SUV, 4X4, Tractor, and RV tires.   Features: Inflates a 37" tire in under 2 minutes* Inflates a passenger car tire in under 16 seconds* Powerful 12-volt, 2/3 horsepower motor Powers directly from a car battery Quick release 24 ft. coil hose E-Z twist brass inflator 150 PSI Armored inline pressure gauge Vented carry handle Convenient nylon carry bag Includes 3 adapter nozzles for inflating sports balls, rafts, and toys *Inflation times based on 25-35 psi Passenger Tire: R16.5R13 Full Size Truck Tire: P265/75R16     Specifications: Max Amperage: 45 A Max psi: 150 Min/Max Operating Temp: -670 F / 900 F Air Volume: 6400 Cubic Inches/Per Minute Voltage: 12V

Goal Sporting Goods BI50 Cordless Air Compressor $142.16 This 210 psi Cordless Air Compressor will inflate a completely flat car tire in 4 minutes. The portable longlasting power supply can inflate 40 basketballs without recharging. Even if you re caught without a charge we include a 6foot DC cord that runs the unit from your car s power outlet. Easytoread builtin pressure gauge prevents overinflation. Includes 12V AC charging cords and adapters for bicycles sports equipment and rafts. Size: 11 x 6 x 3 .

300P Portable Compressor Kit by VIAIR $149.99 This small but powerful compressor is able to fill 33 in. tires from 15 to 30 PSI in about three minutes

Medline Compact Compressor Portable Nebulizer - Compressor, Nebulizer, Portable, Sportmist. Each $118.15 Manufacturer: Medline. Each. Compact Compressor Portable Nebulizer: This compact hand held design is lightweight and simple to operate. Weighs only 20 oz w/ battery. The compact nebulizer gives quick treatments, with a particulate size of 3.0 to 4.0 micro

Respironics RDD491 MicroElite Portable Compressor Nebulizer System- Deluxe w/ Battery $175.99 Respironics RDD491 MicroElite Portable Compressor Nebulizer System- Deluxe w/ Battery

Respironics RDD482 MiniElite Portable Compressor Nebulizer System without battery $89.99 Respironics RDD482 MiniElite Portable Compressor Nebulizer System without battery

Viair 400 Series Portable Compressor Kit $198.95 Viair Portable Compressors in stock now! Read Viair 400 Series Portable Compressor Kit customer reviews. AutoAccessoriesGarage.com has the best selection of Viair Air Compressors at the lowest prices around. Viair 400 Series Portable Compressor Kit are chosen by auto enthusiasts everywhere to personalize their vehicles. Viair 400 Series Portable Compressor Kit available now at AutoAccessoriesGarage.

Viair 450P-A Automatic Portable Compressor Kit 45043 $299.95 Viair Portable Compressors in stock now! Read Viair 450P-A Automatic Portable Compressor Kit 45043 customer reviews. AutoAccessoriesGarage.com has the best selection of Viair Air Compressors at the lowest prices around. Viair 450P-A Automatic Portable Compressor Kit 45043 are chosen by auto enthusiasts everywhere to personalize their vehicles. Viair 400 Series Portable Compressor Kit available now at AutoAccessoriesGarage.

Viair 300P Portable Compressor Kit 30033 $149.95 Viair Portable Compressors in stock now! Read Viair 300P Portable Compressor Kit 30033 customer reviews. AutoAccessoriesGarage.com has the best selection of Viair Air Compressors at the lowest prices around. Viair 300P Portable Compressor Kit 30033 are chosen by auto enthusiasts everywhere to personalize their vehicles. Viair 300 Series Portable Compressor Kit available now at AutoAccessoriesGarage.

Viair 400P Portable Compressor Kit 40043 $198.95 Viair Portable Compressors in stock now! Read Viair 400P Portable Compressor Kit 40043 customer reviews. AutoAccessoriesGarage.com has the best selection of Viair Air Compressors at the lowest prices around. Viair 400P Portable Compressor Kit 40043 are chosen by auto enthusiasts everywhere to personalize their vehicles. Viair 400 Series Portable Compressor Kit available now at AutoAccessoriesGarage.

Viair 400P-A Automatic Portable Compressor Kit 40045 $249.95 Viair Portable Compressors in stock now! Read Viair 400P-A Automatic Portable Compressor Kit 40045 customer reviews. AutoAccessoriesGarage.com has the best selection of Viair Air Compressors at the lowest prices around. Viair 400P-A Automatic Portable Compressor Kit 40045 are chosen by auto enthusiasts everywhere to personalize their vehicles. Viair 400 Series Portable Compressor Kit available now at AutoAccessoriesGarage.

Viair 440P Portable Compressor Kit 44043 $288.95 Viair Portable Compressors in stock now! Read Viair 440P Portable Compressor Kit 44043 customer reviews. AutoAccessoriesGarage.com has the best selection of Viair Air Compressors at the lowest prices around. Viair 440P Portable Compressor Kit 44043 are chosen by auto enthusiasts everywhere to personalize their vehicles. Viair 400 Series Portable Compressor Kit available now at AutoAccessoriesGarage.

Viair 90P Portable Compressor Kit 00093 $78.95 Viair Portable Compressors in stock now! Read Viair 90P Portable Compressor Kit 00093 customer reviews. AutoAccessoriesGarage.com has the best selection of Viair Air Compressors at the lowest prices around. Viair 90P Portable Compressor Kit 00093 are chosen by auto enthusiasts everywhere to personalize their vehicles. Viair 90P Portable Compressor Kit available now at AutoAccessoriesGarage.

Viair 300 Series Portable Compressor Kit $149.95 Viair Portable Compressors in stock now! Read Viair 300 Series Portable Compressor Kit customer reviews. AutoAccessoriesGarage.com has the best selection of Viair Air Compressors at the lowest prices around. Viair 300 Series Portable Compressor Kit are chosen by auto enthusiasts everywhere to personalize their vehicles. Viair 300 Series Portable Compressor Kit available now at AutoAccessoriesGarage.

TROLLEY26 Wheeled Trolley for SPRF26 Portable 12V $79.99 Summit TROLLEY26 Wheeled Trolley for SPRF26 Portable 12V RefrigeratorFreezer