# Getting more amps from a computer power supply [closed]

Hey everyone I am new here and new to working on electronics. With that being said I am trying to figure out if wireing 2 of the 12v wires with 18 amps would give me 24 volts with 36 amps? I am trying to use a computer power supply to run a vape mod that is designed to run at 8.4 volts and 30 amps. I just need to figure out this part so I know what resistors I need to get and calculate the wattage. Thanks for any help! I am really looking forward to trying to get this to work

• Welcome to EE.SE. This question has been asked before, many times. The answer is NO. The reason is that all PC supplies have a common ground pour and an IC to watch for under/over voltage and current. They usually have a PFC supply of 300V to 340V DC to feed the main supply, and it will burn you-not just shock you. I have spare PC supplies myself and will make buck or boost converters to get what I want. I leave the power supply as it was built. – user105652 Apr 12 '18 at 5:07
• Thanks. I will look into the boost. I have only cut the 12 v wires and hooked them to the vape curcit board. It turns on but says battery is to high. At least this way I know what I need to start looking at. – Timothy Bradley Apr 12 '18 at 5:15
• Even if they had separate grounds you can double the voltage or the current, but not both. – Oldfart Apr 12 '18 at 5:41
• I just need to double the current and reduce the voltage. I just got to figure out how to do that and I should be good – Timothy Bradley Apr 12 '18 at 6:52
• I don't believe for one minute that your vape requires 8.4 volts and 30 amps - that's 252 watts of heat an inch or two from your face. It's gonna hurt. – Finbarr Apr 12 '18 at 12:03