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#1 |
Member
Join Date: Apr 2019
City & State: Colonie
My Country: Offworld
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Posts: 26
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![]() As the title says do you think it would be useful for modern PCs to use more DC voltage ? I know you can compensate the lack of voltage giving more AMPs but still at this rate we should be using 36v at least. Also why we can't connect an badass AC turbine (110~220) inside the case?
Delete the thread if its garbage please. Regards and thanks for you patience. |
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#2 |
Badcaps Veteran
Join Date: Jan 2015
City & State: worcester
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![]() 12v is easier to find in the ghetto .
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#3 |
Solder Sloth
Join Date: Nov 2012
City & State: CO
My Country: USA
Line Voltage: 120VAC 60Hz
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![]() (1) There needs to be some intermediate voltage, and it will still be a double conversion (120/240 line -> 12V or whatever -> 1.5V or whatever the ICs need, and this wire needs to be really thick as it could need to deal with upwards 50 amps...). 12V is ubiquitous anyway and it's needed for hard drives and other peripherals anyway.
Note that in server farms they typically use 48VDC but this too is a historical number and may well could have been 36V. We should be focusing on using less energy anyway. (2) There's no 120V fans due mainly to cost - to ensure that it meets grounding safety requirements. |
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#4 |
Badcaps Veteran
Join Date: Dec 2010
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![]() Power mosfets in the 30V league are optimized for cost, use in laptops and motherboards, so you could go higher than 12V but not to 24V.
Intel's new ATX 3.0 standard (for 600W gaming video cards!) is still 12V. They added a connector but seem OK to go to 50A. Nobody likes the standard yet. |
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#5 |
Member
Join Date: Apr 2019
City & State: Colonie
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![]() Thanks for the honest answers, maybe I forget that the big tech companies make money selling servers and such (BIG LEAGUE) desktop gaming pc it's just 5 dollars per piece if I recall correctly, the earning are in the ideas ("look i have an algorith or a diode that reduces 5w in pwr compsunsion, etc")
............. Another question: Wouldn't be cool if the GPU came with their own PSU ? |
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#6 |
Badcaps Veteran
Join Date: Feb 2014
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![]() Google's servers use 48v.
Why would it be cool, what's the benefit ? |
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#7 |
Badcaps Veteran
Join Date: Mar 2014
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![]() The old (ww2 era) aircraft tube radios had a small motor/ generator for the tube plate voltage ( 150-300 vdc typically)
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#8 |
Badcaps Veteran
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![]() They way Video Card requirements are going I wouldn't be surprised to see a 24v or higher PSU introduced in the next year or so.
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#9 |
Badcaps Veteran
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#10 |
Badcaps Veteran
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![]() It's the same reason battery yard tools went to 80v vrs 40v.
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#11 |
The Boss Stooge
Join Date: Oct 2003
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Line Voltage: 240V @ 60Hz
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![]() I've kind of wondered this a little as well..... I'd love to see the little kiddies playing inside their PC's when there's a motherboard full of exposed metal with 80v present!!
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#12 |
Black Sheep
Join Date: Nov 2008
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![]() 24V works great in my world. Pretty much *the* standard for industrial controls wiring (PLCs, automation, etc.).
Per OSHA (and other codes) Low voltage ends at 50V... which is why POE is considered low but 120V isn't. Which technically means the 90V on phone cords isn't low voltage either!
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#13 |
Badcaps Veteran
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![]() With the battery system on the new electric cars around 800v ,I can't wait until d I y ers with poor electrical skills start messing with them.
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#14 | |
Computer Geek
Join Date: Jan 2015
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![]() Quote:
Unless there's ring current, then it's basically trickle-charge levels of current available.
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Don't buy those $10 PSU "specials". They fail, and they have taken whole computers with them. ![]() My computer doubles as a space heater. Windows 10? Only if you like forced, buggy updates and 24/7 telemetry. Samsung = Seagate = Seatrash = Trashgate Don't buy Seagate drives. Don't use Seagate drives. If you have any in service right now, make plans to replace them ASAP. SMR = Slow Magnetic Recording Avoid SMR, buy CMR drives instead. SMR is easily a 15+ year step BACKWARDS in HDD speed. Permanently Retired Systems: RIP Advantech UNO-3072LA (2008-2021) - Decommissioned and taken out of service permanently due to lack of software support for it. Not very likely to ever be recommissioned again. |
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#15 |
The Boss Stooge
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#16 |
Black Sheep
Join Date: Nov 2008
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![]() OT: Took some digging, but I found a better smiley for you in this case:
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#17 |
The Boss Stooge
Join Date: Oct 2003
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Line Voltage: 240V @ 60Hz
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![]() Added.
![]() Good find, especially for this place! ![]() ![]() |
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#18 |
Badcaps Veteran
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