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What could happen in the long run to my dual LCD and/or their AC?
Here is my situation: 2 LCDs, one of them being kinda old but less Amperage (call it be mon_1) the other one being something from a junk dealer working too but did not have power adapter (let it be mon_2); 2 AC/DC adapters, one being a perfectly 4 Amp guy from mon_1 but being used in mon_2 (let it be ac_1, the other one is from something else but I had to splice the cable and cross polarity, IT IS 1.2 AMP BUT USED WITH MON_1 THAT SHOULD TAKE 1.5 AMP (let the AC be ac_2).
They are in dual display configuration to a machine that runs GeForce 7600 and PSU of 400 watts, one of them need Analog-DVI adapter; somehow ac_2 is working with mon_1 even though the power grade is mismatched. So here is my question: is there going to be a problem in the long run to mon_1, mon_2, ac_1, ac_2, and/or computer if I keep using ac_2 with mon_1?
Both LCD are 12 volt, there's no issue with that, but wattage really not sure, talk about those after telling me about the under amperage.
1 Answer
- CityZenLv 51 decade agoFavorite Answer
When finding an AC adapter for the device, you need to check:
* type of voltage (AC or DC)
* polarity if DC
* volts
* amps
The first 3 need to match exactly. For the last one, you want the supplied amps to meet or exceed the used amps.
It sounds like you're not quite matching on that last point. It's working because the power supply designers have some amount of "headroom" designed in. So obviously your 1.2 amp adapter is (barely?) able to supply the power the monitor needs.
With power supplies, using too much power typically causes some part to overheat and perhaps eventually fail. It may fail nicely and just shut down, but if it's poorly designed, it can fail badly and send out too much voltage to the monitor and damage it.
Keeping the supply cool might help it last longer. If you feel it being too hot, you should replace it soon with a higher capacity one.