- Jun 19, 2014
- 407
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There is a TL;DR section at the bottom if you don't want to read through the lengthy first part.
Hi there.
So, I recently made a thread asking about my $1100 build and if it was good. Anyway, I got a suggestion about Seasonic in that thread and figured the M12II 620W 80+ Bronze PSU should be good enough to support a GTX 780. Well, I think. I checked the PSU's specs deeper and it turns out it has two 12V rails, each supporting 24 amps. I did some calculations and my system would need a total of 40-45 amps on a 12V rail to run without any issues. Now, 24+24= 48A, which should be sufficient to support my system, but, I heard that on multi rail PSUs, if one rail exceeds a specific wattage, the PSU would shut down to protect itself. As you probably know, the GTX 780 is a power hungry graphics card that has a 250W TDP. The GPU itself it needs ~20A to work properly. I am really confused. Is the Seasonic 620W any good? Any help?
Rest of system:
i5 4440
8 GB DDR3 1600 RAM
GTX 780
Seagate 1 TB HDD
TL;DR: Would a Seasonic M12 620W support a GTX 780 running at stock speeds without failing/frying my mobo/burning my house down?
Hi there.
So, I recently made a thread asking about my $1100 build and if it was good. Anyway, I got a suggestion about Seasonic in that thread and figured the M12II 620W 80+ Bronze PSU should be good enough to support a GTX 780. Well, I think. I checked the PSU's specs deeper and it turns out it has two 12V rails, each supporting 24 amps. I did some calculations and my system would need a total of 40-45 amps on a 12V rail to run without any issues. Now, 24+24= 48A, which should be sufficient to support my system, but, I heard that on multi rail PSUs, if one rail exceeds a specific wattage, the PSU would shut down to protect itself. As you probably know, the GTX 780 is a power hungry graphics card that has a 250W TDP. The GPU itself it needs ~20A to work properly. I am really confused. Is the Seasonic 620W any good? Any help?
Rest of system:
i5 4440
8 GB DDR3 1600 RAM
GTX 780
Seagate 1 TB HDD
TL;DR: Would a Seasonic M12 620W support a GTX 780 running at stock speeds without failing/frying my mobo/burning my house down?
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