quan289

The M12II-B 520w is a $65 PSU, while the CX550M is $69.99 or $49.99 after MIR. http://www.newegg.com/Product/Product.aspx?Item=N82E16817139147 The CX450M is $59.99 if you don't want to deal with rebates. At those prices, I would personally go with these new CXM, rather than going for the old M12II-B design. In fact, just today a few people at Jonnyguru had recommended the CXM over the M12II-B as well: http://www.jonnyguru.com/forums/showthread.php?t=13270&page=2

How about the Corsair CX450M? https://www.scan.co.uk/products/450w-corsair-cx450m-80-plus-bronze-hybrid-modular-sli-crossfire-single-rail-374a-plus12v-1x120mm-fan It's an updated CXM unit with DC-DC, semi-modularity, 40C rating, 5 year warranty, and full black cables.

Well, you need to buy an external dongle for it, as well as it offer a more limited control over the PSU in comparison to the RMi (the RM only allow to monitor the 12V current and fan speed, IIRC).

Yes, they are.

They are based on the same internal platform; however, the RMx lacks Corsair Link, the ability to switch between single rail and multi-rail, a fan test button, and it uses a rifle bearing fan instead of a FDB fan.

http://www.tomshardware.com/reviews/corsair-rm550x-power-supply,4484-5.html I would suggest getting the Corsair RM550x if your concern is noise. Since efficiency level is only ~2% difference at 20%+ loads, spending more for a higher wattage unit just to get the "ideal efficiency" isn't that beneficial. Even then a setup with an overclocked Haswell i7 and Asus GTX 970 would be under 300wDC, so a 550w would be more "ideal".

It's a good budget unit. I would go for the CX450M though.

Corsair Vengeance is a German-fied version of the new CXM, so you could get an idea of how the platform perform electrically here http://www.hardwareluxx.de/index.php/artikel/hardware/netzteile/38397-corsair-vengeance-650w-im-test.html Of course, it's ideal to see a review of the actual CXM unit, but that's the best you can do atm. At the very least, I hope this can put the FUD with using these new CXM units with higher-end GPUs setup to rest. Efficiency @ 115V : 86.9% | 88.3% | 84.2% - In the operating range of which most people will put the unit in, they will be achieving silver efficiency. Load Regulation | Ripple Suppression - 3.3V : 0.3% | 21mVpp; 5V : 0.2% | 36mVpp; 12V : 0.6% | 22mVpp All of the rails had stayed within 2% of nominal. The difference between the Vengeance and the CXM is the AVL (Approved Vendor List) for the secondary capacitors are all Japanese (CX has both Japanese and Taiwanese/Chinese) and multi-rail on the Vengeance. Now there's a few test that hasn't been shown. Crossloads - A test to see how the load on one rail will affect the voltages of another, in which a group-regulated design must stayed within a certain ratio for it operated optimally. You could get a near 0% deviation with an ideal load scenario, while that same sample can have a 3%+ deviation in another as you can see with the CX600M. Since the new CXM are DC-DC regulated, this typically isn't an issue and had Hardware Luxx tested for this, it would likely had stated within that 2% nominal as well. Transient Load Response, which is a very important test, as it determine the PSU's ability to maintain its regulation during dynamic loading like how it is in the real world. While it being DC-DC regulated to some degree help with this, transient loading is more determent on the primary side. As such certain topology such as ACRF typically doesn't do too well as you can see with the EVGA Supernova GQ 750w review. Since both the Seasonic S/M12II-B 380-620w and the new CXM both utilized the double-forward topology, I would like to say the CXM would be comparable if not better in this category.

Just an FYI, the RM750/850 models with the LTec caps had been discontinued. The current version had change OEM (CWT) and had shown to have Japanese caps on the secondary I mentioned it on your other thread. The RM850x is cheaper ($109.99) and yet better than the RM850 ($119.99+$7.99 shipping). http://www.newegg.com/Product/Product.aspx?Item=N82E16817139141

The suggestion in getting the RM850x is highly recommended if you are in the US. The RM850x is not only cheaper than the RM850, it's cost as much as the RM650x before MIR. http://www.newegg.com/Product/Product.aspx?Item=N82E16817139141 Unless, of course, you already got the RM850 and is getting the Spec 01 case (I don't think this is the case though), then it will fit. The Spec 01 accept PSU up to 230mm in length, while the RM850 is 180mm

The GQ is a FSP custom design that is like an Aurum S platform but with an updated DC-DC secondary, while the G2 is a Super Flower Leadex design. Two different design from two different OEM. The 750 GQ is electrically inferior to the G2 in respect to voltage regulation, ripple suppression, response to transient loads, etc. Here's the review for the 750w model. http://www.tomshardware.com/reviews/evga-gq-series-750w-psu,4396.html

It isn't "as good". The G2 is still the superior unit.

The 430, 500, and 600 watt model of the CXv3 / M models (the one with the Green logo) are DSA-III based unit from CWT. They are based on an old group regulated design. The 750w and 850w models are CWT PUQ-B which utilized DC-DC for the minor rails which will yield better voltage stability than the lower wattage counterpart. All of which are warrant for 3 years and are rated for 30C. The new gray labeled 450, 550, 650 models are a custom design from CWT (essentially a cost down version of the RM 450-650) are DC-DC regulated, 40C rated, black cables, and a 5 year warranty. The 750 and 850 is still based on the same platform before but has a higher rated bridge rectifier along with all of the changes mentioned with the lower wattage models

Just because the manufacturer is Enhance doesn't mean you should just "go back to Seasonic". As stated already, the V650 is very much superior than the S12II-B. However, if you are getting the V650 for 8k, then that is too pricey as you could get the RM650x in that 8k INR price point, which is a superior unit than both. Anyways, if you are looking for something cheaper, the Delta build, indy regulated Antec VP650PM may be a good option. The S12II-B 520 can power a single 970 setup as well.

The Cooler Master V550 is the superior unit.

The TS Gold is an S12G unit internally. It's a solid upper mid-range unit that can power two of those 970 G1 in SLI.

That's the GLN platform - not the HCN that the OP has. Four SATA, Three molex, one FDD, one 6+2 pin PEG, and one 4+4 pin and 24-pin connector.

The Seasonic M12II-B 520 Evo and the HCG-520M is both based on the same GB platform. I would go with the M12II-B Evo for the full modularity and all black cables.

Oh, I didn't see your previous edit. Can you provide a link to the store(s) you can buy from, so we know what's available to you for what price? Considering how the new CXM are based on an entirely different platform from the DSA-III based CXM that was only recently release, saying that it is "explosive" is unfounded as there is insufficient evidence of people having it blowing up. Even then, I wouldn't go about saying that the CX v3 / M are "explosive" either but whatever.

Yes, it has the same white logo. It also will be a better performer (electrically), better build quality, has a 10 year warranty (recently been upgraded), fully modular, semi-passive cooling (quiet at lower loads), rated for 100w more, etc. Comparing it to the CX550M, it's $10 more or the same price after MIR.

I want to recommend the new CX450M for $49.99 USD or $29.99 after MIR (if you get it). http://www.newegg.com/Product/Product.aspx?Item=N82E16817139146 It's a DC-DC regulated PSU rated for 40C, has a 5 year warranty, semi-modularity and black cables. This is not to be confused with the older CX430/500/600M units.

Even a dedicated power meter like the Kill-A-Watt can be inaccurate to the point that the AC power as shown to be lowered than even DC, as such I would expect the same with a PSU/UPS - seeing how a their primary function isn't to provide power readouts. Anyways, here a review of the HX1000i: http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=394 There's a link of each test on that the Progressive Load Test table. You can compared the AC/DC readings of Corsair Link and Jeremy's testing equipment.

Ok, you have made multiple of threads regarding what PSUs you should get. While they are about different units, it's still the same topic and making multiple of them is essentially spamming. I asked like 3 times for your system specification (so we know your power requirement), links to stores you can buy from (different countries may affect availability and pricing), and your budget (how much you can spend). So please do ourselves a favor (that's include you), can you answer this within this thread (so I don't have to feel like I'm hunting you down just to asked the same damn question)? As for those three units...my recommendation essentially will be in the order you have listed (although, you can say that functionality-wise it also worse due to modularity).

Between the two, I would go for the V750 but that all depends on the price, as I would not get it if it cost $50 USD more than the M12II-B for example. I've asked you this in your other thread (try to keep it all in one thread, please), can you provide a budget, links to stores you can buy from, and your system specification? Both are DC-DC regulated, btw. The lower wattage S/M12II-B 380-620 are group-regulated.

On pretty much any "tier" list, I often find myself asking why certain units are place where they are. It's better to compare two units individually at the price that it is set at and pick the one that is best for your needs rather than relying on such a list. That PCMR list is pretty much a copy and paste version of Tomshardware's old list that got abandoned and remade by someone else. Edit: If you want a PSU recommendation, provide some info: What is your budget in your currency? Can you provide links to store(s) you are able to buy from? What will the PSU be powering? What is your expected upgrades - SLI/CFX?