> buy new power supply (good brand) > should be more than

>should be

Then you should have no problem listing your components and PSU model, right?

>>59443014
Asrock H87M mobo
i5-4590 (with aftermarket cooler)
No GPU atm, only integrated
Win 8.1
2x8 GB RAM
1 SSD and 2 HDD (+DVD drive)

There is no way EVGA 550 G2 shouldn't be able to run that.

>>59443065

>Win 8.1
There's your problem m8

Really though, I have no idea. Do you get 100% POST success if you go back to one disk?

It's possible that there's a shorting issue in your cables or second drive that's causing OCP to trip, but I can't think what else.

By "refuses to turn on", do you literally mean absolutely no response? Do fans or disks spinning etc?

>>59443284

No fans or disk spinning etc?*

>>59443284
>>59443295
Everything turns on for like a second, then goes off again.
The strange thing is that I now tried to run it without the second drive, but the PC thinks there is only the SSD.
fml

Not sure what to suggest desu. Just start crossing things out; use different SATA power daisy chains/series on the PSU, different SATA ports, flush CMOS, update BIOS, do a full disk health check.. weird indeed.

I've had failed disks that stopped my machine from posting at all when connected, but I think that fans still span up and stayed spinning at least.

take your ram out and place in different lanes

Shouldve got a seasonic

>>59443065
Back of the tower where the PSU cord is. There's a switch. Flip it.

>>59443595
I am not that retarded.

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>>59443007
found your problem

>>59443713
Oh geez, thanks, of course it's the old lighbulb. Gotta get a new one.

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>>59443713
Wow you must be the first person to point this out.

>>59443007
> pc refuses to turn on if I plug in both hard drives
Does it work if you plug one at a time, for both?

If so, maybe you got a bad PSU. RMA, perhaps grab a Corsair HXi or AX.

>>59443779
Maybe I'll RMA, but I still hope I can think of something.

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>>59443824
Rma mate, nip the trouble in the bud.

>>59443007
I had this problem before, turns out I screwed the mobo standoffs too tightly.

Try that, and if it still doesn't work, I highly suggest RMA'ing it, might be a faulty unit, like what other anons have said.

>>59444007
But all works fine without plugging in the HDD, that doesn't seem like it has anything to do with the mobo.

>>59444035

So it happens even with power only/no data cable connected to disk2? Does it happen on all on the sata power daisy chains? (if there are more than one)