Question about PSUs

[Fatalityyy]

Hello all,

Here is my rig before I ask my question:

i5 2500k 4.5
Asus P8Z68-V Pro GEN3
Asus 570 DCUII
Mushkin Enhanced Blackline Frostbyte 1600mhz 2x4gb
WD Black 1TB
XFX 750w pro Core Edition
Cm HAF X

Now I wanted a Good quality PSU with modular cables because I want to put it in my case a forget about it for years and years. Seasonic and Corsair seem to be the top two brands at the moment so I was deciding between:

Seasonic X-1050 Gold DC to DC PSU

or

Corsair AX850 gold

I went for the x-1050 because of the amount of wattage just in case I want SLI in a year or two and because it has the Hybrid Fan Controller.

Now my questions are: What is a DC to DC PSU and is it good or bad? and since 1050 watts is overkill for my system at the moment does it matter? or is the only factor that I could be saving money and settling for like 650w or something?

Thanks

[imeem]

first of all, why do u want to upgrade ur psu if ur psu is working fine right now?

I would only replace/upgrade the psu if you do future upgrades to ur rig and/or ur psu dies.

[Burack]

You have a good PSU there with enough juice to run your system. Don't touch anything:
http://www.jonnyguru.com/modules.php...ory10&reid=216

[ElijahChondo43]

Just so you know, the Corsair 850w would be the better choice because it CAN power 2x GTX 570s with ease. I know you only have 1 right now but the 1050w is way overkill.

The Corsair, sad to say, is the best choice, even for SLI.

[Fatalityyy]

I know it's overkill but it doesn't even matter right?

that's all I need to know

[dosbox]

Originally Posted by ElijahChondo43

Just so you know, the Corsair 850w would be the better choice because it CAN power 2x GTX 570s with ease. I know you only have 1 right now but the 1050w is way overkill.

The Corsair, sad to say, is the best choice, even for SLI.

The Corsair AX series are rebadged Seasonic X units. And while 1050W is overkill, there would be little functional difference on a SLI system.

Fatalityyy - PSU's convert AC from the wall to DC at voltages used by your components. A PSU that uses DC-DC convertors usually converts the AC to 12VDC, then to the other voltages. This is a more efficient way of doing the job.

[ElijahChondo43]

Originally Posted by dosbox

The Corsair AX series are rebadged Seasonic X units. And while 1050W is overkill, there would be little functional difference on a SLI system.

Fatalityyy - PSU's convert AC from the wall to DC at voltages used by your components. A PSU that uses DC-DC convertors usually converts the AC to 12VDC, then to the other voltages. This is a more efficient way of doing the job.

Well either way, the 1050 is indeed an overkill and leaves a lot of headroom but that can be good as well just in case you want more things like fans, coolers, etc.

Also thanks for the information with "DC to DC", couldn't find anything on Google pertaining to an explanation of this! Learning more and more everyday.

[Fatalityyy]

Originally Posted by dosbox

The Corsair AX series are rebadged Seasonic X units. And while 1050W is overkill, there would be little functional difference on a SLI system.

Fatalityyy - PSU's convert AC from the wall to DC at voltages used by your components. A PSU that uses DC-DC convertors usually converts the AC to 12VDC, then to the other voltages. This is a more efficient way of doing the job.

okay thanks for the clarification, I guess it was a good idea to get the one with DC2DC after all. I know it's way overkill but I have money to spend and I want a PSU with modular cables and high wattage that will last me a long long time.

[dosbox]

Originally Posted by Fatalityyy

okay thanks for the clarification, I guess it was a good idea to get the one with DC2DC after all. I know it's way overkill but I have money to spend and I want a PSU with modular cables and high wattage that will last me a long long time.

I wouldn't bother trying to future proof a power supply. The last five years have seen a bunch of different connectors become popular, and support for old ones die off.

[Labianator]

Originally Posted by ElijahChondo43

Just so you know, the Corsair 850w would be the better choice because it CAN power 2x GTX 570s with ease. I know you only have 1 right now but the 1050w is way overkill.

The Corsair, sad to say, is the best choice, even for SLI.

Yeah. This.

I have the Corsair HX850W and this thing just rocks. Most online reviews and tests showed that it can actually push 1,000 watts. Not sure how true they are, but it was all over the place when this thing first came out.

I'd recommend this dude's recommendation to get it.

Also, modular.

Edit:
At the dude who says they are rebranded - Yes, they are. However, they also have a proprietary design for capacitors and rails. They were engineered by, according to Corsair, their own team of, well, engineers.

Either way, they are both great products. The Corsair and the Seasonic.

[ElijahChondo43]

Originally Posted by Labianator

Yeah. This.

I have the Corsair HX850W and this thing just rocks. Most online reviews and tests showed that it can actually push 1,000 watts. Not sure how true they are, but it was all over the place when this thing first came out.

I'd recommend this dude's recommendation to get it.

Also, modular.

The one the OP listed is fully modular but I believe he already bought the 1050w, which is still ideal and good for the money! Thanks for the support but it's all preference and I prefer Corsair

[Labianator]

Originally Posted by ElijahChondo43

The one the OP listed is fully modular but I believe he already bought the 1050w, which is still ideal and good for the money! Thanks for the support but it's all preference and I prefer Corsair

Hehe, yeah, it can be about preference. Sadly, people usually skimp on a good PSU to save money. IMO, that is saving money in the WORST possible area.

[ElijahChondo43]

Originally Posted by Labianator

Hehe, yeah, it can be about preference. Sadly, people usually skimp on a good PSU to save money. IMO, that is saving money in the WORST possible area.

150% agree mate, I'd rather skimp on a GPU/Case/CPU/etc! and get a high end PSU knowing my hardware will be safe! It's very sad to read how people buy a very cheap but high wattage PSU and then a month later come here and say that their system fried. High wattage doesn't always equal better.

I prefer Corsair and Seasonic, but I am rather interested in Rosewill PSUs, great design haven't heard of good nor bad reviews so kinda sketchy

[dosbox]

Originally Posted by Labianator

Edit:
At the dude who says they are rebranded - Yes, they are. However, they also have a proprietary design for capacitors and rails. They were engineered by, according to Corsair, their own team of, well, engineers.

LOL - don't believe the hype.

Corsair AX-850 - note the brand and specs of Capacitor:

Chemi-Con 420V 390uF capacitors rated for up to 105°C operation

Seasonic X-850 - huh, that 420V 390uF capacitor looks familiar:

Chemi-Con, and are labeled at 105º C

Now, there might be minor differences elsewhere, but I can tell you that they won't be intended to improve performance. They'll be there to reduce the price.

[Labianator]

Originally Posted by dosbox

LOL - don't believe the hype.

Corsair AX-850 - note the brand and specs of Capacitor"



Seasonic X-850 - huh, that looks familiar:

I am not talking about making the capacitors. I am talking about the ways in which they are used and the phase switching. But, yeah, I already acknowledged they are basically the very same.

All the reviews stated that the Corsair branded models outperformed the similar Seasonic models.

Again, I don't know how true. Just reiterating what I read.

Never tested it myself.

Edit:
Oh, and you compared the AX850, not the HX850.