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Questions about Coolmaxx 600watt PSu

post #1 of 21
Thread Starter 
Okay back in June i built this PC : Since then I've no problems, until recently when I purchased a Fan controller and some fans to cool my case. Now here's when the problem starts, Installed the fans and the controller, did the cable management thing, Booted to windows and almost immediatley my keyboard ( g110) starts flashing ( cutting in and out ). I have checked wattage calcualtors and so forth, and I should have plenty of power. So i RMA'd my keyboard thinking this would fix the issue at hand, recieved the replacement today via UPS and it's not any better if not worse. So basically what i need help with, is trying to figure out which is faulty the PSU or the motherboard ? Spoke with the company that makes the PSU and they told me it wasn't the unit ( very rudely ) ... so im wondering what to do.


Thanks!
post #2 of 21
It's hard to say where the problem is coming from, although with a Coolmax turd (sorry -- no offense to you, I just call them what they are), it wouldn't surprise me if that was the culprit. According to wattage calculators you may have enough wattage, but given that this is most definitely not a 600W unit at all... I'd go after the PSU first.
post #3 of 21
Thread Starter 
So i disabled the OC, to see oif that does any better and changed the USB setting in the BIOS to High-speed 2.0 instead of full speed. Still not any better, and i really dont want to RMA my board either, i dont think there is anything wrong with it. It's gotta be the PSU, but I really cant afford a good one right. Any ideas on what to get in the 700-850 watt range that isnt drastically expensive ?
post #4 of 21
A quality 400W would run your system. Antec NeoECO 400C is about $45 on Newegg right now, would be a good choice.
post #5 of 21
Thread Starter 
But my card needs at least a 450w and 30a on the 12v rail to run. That is why i went with this one. it was only 69 bucks on newegg.
post #6 of 21
Phaedrus is right, you can run your computer on a good 400W unit. The requirements stated by GPU manufacturers are always exaggerated. That said, the Neo Eco 400W actually does deliver 30A@12V, so you have nothing to worry about.
post #7 of 21
Thread Starter 
That being said. Now i dont think that will power everything that i have that is USB. Fan controller 6 120mm fans, Usb gaming board, Usb gaming mouse, Usb powered Wireless N adapter, Usb printer. That is why i choose this one, plenty of power. If use my old wave board (ps2) it's fine. nno problems,except it's not as responsive as USB is either. I have no idea... i have never seeb this issue and i have been workingon computers for 10+ years. This is a new one to me.
post #8 of 21
I get that you picked that one thinking it would give you plenty of power, but in all likelihood it's an overrated 400W unit. I just looked at all the 600W Coolmax units on Newegg, none have a 12V rating above 450W, and I doubt that they can actually deliver that. Coolmax is just a bad, bad brand.
post #9 of 21
USB stuff is all powered off your +5VSB rail, which is rated for 10-15W no matter what the wattage of the PSU.

Your fan controller and the printer are the only devices of yours that have significant draw, and they have external power sources.
post #10 of 21
Your actual rig itself will consume less than 300WDC so a good 400w PSU is more than enough, even including all your USB devices (which don't even consume much, really).
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CPUMotherboardGraphicsRAM
5820k ga-x99-sli gigabyte 7970 wf 16gb 4x4 lpx 
Hard DriveCoolingPowerCase
samsung 830 128gb ven x/gt ap-15 evga g2 650w corsair 450d 
Audio
jbl lsr305 
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(9 items)
 
  
CPUMotherboardGraphicsRAM
5820k ga-x99-sli gigabyte 7970 wf 16gb 4x4 lpx 
Hard DriveCoolingPowerCase
samsung 830 128gb ven x/gt ap-15 evga g2 650w corsair 450d 
Audio
jbl lsr305 
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