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Antec P190 - am I missing something, or is this bad design?

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July 5, 2007 12:23:16 PM

For those of you who are unfamiliar with the Antec P190 case, it comes with two built-in power supplies, one 650W and the other 550W.

On the face of it this seems like a great setup - 1200W is more than enough for anyone. But then you read the small print.

From Antec's website (link):

Quote:
Neo-Link 1200 Watt dual power supply system:
One 650 Watt Neo Power is responsible for powering the motherboard and add-in cards, while another 550 Watt, handles your drives and other peripherals

So, the 650W supply is powering the motherboard, the CPU, the graphics cards (not just the slots but the PCIe connectors as well), all of the cooling fans, USB devices, and anything else that draws power from the motherboard; the 550W supply powers the hard disk and optical drives and nothing else.

Now, am I missing something, or is that just a really stupid piece of design? Granted, even a typical R600 Crossfire system only pulls about 550W under load, but how much of that is actually being used by the drives? If you put a quad core processor in there, and overclock not only the CPU but the video cards as well, you're going to be getting treacherously slose to the limit of what a 650W PSU is capable of delivering. You certainly wouldn't want to be continuously drawing that kind of power from the PSU. And while that's going on the 550W supply is virtually idle.

Surely you'd be far better off with a single 850W PSU?

I wouldn't mind, except that the P190 is apparently only available with the dual-PSUs fitted. What the hell is the point of offering 1200W of power if about about 500W of that can never actually be used and the system is on the verge of overload when pulling 600?
July 5, 2007 12:35:20 PM

Yep that's about right. Antec is doing this now to get people to spend the extra money who really wanted the P190. You can expect a P190 in the near future to come with just the case.
July 5, 2007 12:39:21 PM

Quote:
You can expect a P190 in the near future to come with just the case.

How near?
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July 5, 2007 12:44:44 PM

I must say, I don't particularly object to the PSU bundling as such, but I do object to them designing it stupidly and bundling it. The only thing they had to do was move the PCI-Express power connectors onto the 550W PSU, and the system would have made sense. In its present form it doesn't.
July 5, 2007 12:53:53 PM

6 months..., possible called the P192
July 5, 2007 12:59:48 PM

I reckon they should have had it as:

500W PSU - for motherboard, cpu, hard drives, optical drives.

700w PSU - for cooling fans and graphics cards.

maybe even 400/800.
July 5, 2007 1:18:19 PM

Quote:
500W PSU - for motherboard, cpu, hard drives, optical drives.

700w PSU - for cooling fans and graphics cards.

Fans use very little power, and graphics cards draw anything up to 75W each from the PCI express slots, which are, in turn, powered from the motherboard. The CPU also draws its power from the m/b. I think about 700W for the motherboard and 500W for the PCIe power connectors and drives would be a good balance. Like I said, if they'd just moved the PCIe connectors onto the 550W supply, it would have made sense.
July 5, 2007 1:29:44 PM

screw both that... just get a 1200W and it will be fine... seriously, in aus the p190 is $460, the p180 is $200, so, $260 is for the psu? thats fulling ridicules. a 850W thermaltake toughpower is $225...is probably 2x as reliable and will provide 2x more stable power it is probably 2x more efficient too, you see one psu at idle (well, powering just a dvd drive and some hdds?) achieves a efficiency of about 60%, if the second psu is at 100% load will see about 80% efficiency but will lower the efficiency of the rest of the system from excess heat.
July 5, 2007 3:39:38 PM

Nice find. Would probably be very comparable to the P190 in price had it not come with the two power supplies.
July 5, 2007 5:01:21 PM

That PC-A10 case costs double the price of the Antec P182 (at UK prices). I don't know how much the P190 would cost without the PSUs, but I'm guessing it wouldn't be as much as that.
July 5, 2007 5:58:03 PM

Quote:
That PC-A10 case costs double the price of the Antec P182 (at UK prices). I don't know how much the P190 would cost without the PSUs, but I'm guessing it wouldn't be as much as that.


The Antec P182 costs $169, the Lian Li PC-A10 costs $220, you could almost for sure assume the P190 would cost $200 or more.
July 6, 2007 8:48:40 AM

Quote:
The Antec P182 costs $169, the Lian Li PC-A10 costs $220, you could almost for sure assume the P190 would cost $200 or more.

In Britain, which is where I am, the Antec P182 costs about £77, and the PC-A10 costs about £162. At today's exchange rate that's about $155 for the P182 and $326 for the Lian-Li. The A10 is not such a good deal at that price.
July 6, 2007 12:47:34 PM

Well, of course. Unfortunately prices are consistent throughout, but with the prices that i was referring to the Lian Li was reasonly priced.
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