We have already reviewed quite a few PC Power & Cooling products on AnandTech, but this time we will be looking at their first series with modular cables and a white case. In contrast to older PSUs PC Power & Cooling delivered, this one provides a 120mm fan for cooling as well. The new Silencer MK III models are available in 400, 500 and 600W only. This is a good news for everybody who is interested in small power supplies as they deliver more than enough power for any common PC with one graphics card.

PC Power & Cooling uses Japanese capacitors, one powerful +12V output, a ball bearing fan from ADDA , and a partially modular cable management. With 80 Plus Bronze certification, the Silencer MK III seems to be an average product, but Seasonic is the company behind these products—and they're definitely a good choice. What about the internal design and components? On the following pages we will see if they meet one's expectations.

Thirteen months ago OCZ announced its intention to acquire Indilinx, the SSD controller maker that gave Intel its first taste of competition in the consumer market in 2009. Eight months later, OCZ launched its first post-acquisition SSD based on Indilinx silicon. Today, just five months after the launch of the Octane, OCZ is officially releasing the Vertex 4 – based on its Indilinx Everest 2 silicon. In less than a year, OCZ has brought to market more Indilinx powered controllers than Indilinx did in the previous three years. It's rare that you see the fruits of acquisition so quickly, but if there's anything OCZ's CEO Ryan Petersen is good at it's pushing for an aggressive schedule.

Rather than call this drive the Octane 2, OCZ went with Vertex 4, indicating its rightful place at the top of OCZ's SSD lineup. The implications run even deeper. It marks the first time in two years that a Vertex drive will ship without a SandForce controller inside. Make no mistake, while Octane was a shot across SandForce's bow, Vertex 4 means war. While OCZ continues to ship tons of SandForce controllers, the future for the company is Indilinx. The Vertex 4 is just the beginning. OCZ will continue to ship Vertex 3 in parallel, and should a future SandForce controller make competitive sense to use OCZ will definitely consider it, but the intention is to build the fastest silicon internally and use it as much as possible.

Read on for our full review!

In this review we will compare two almost identical products from OCZ and Corsair. Even so, there are still some differences between the offerings. With 550W both PSUs deliver more than enough power for most current systems. On the following pages we'll find out which handle overload situations the best, who has the highest efficiency, and which PSU provides the best voltage regulation.

With sales of more than 100,000 PSUs each month, Corsair is one of the most important vendors for retail power supplies. They have a lot of experience even if they don't own a factory. In addition they are a leading manufacturer of SSDs and (good-looking) ATX cases. A few months ago Corsair presented the latest addition to their Enthusiast series. The TX brand has the goal of delivering low prices, quality, and high efficiency. Today we take a look at the TX550M 550W and find out if they meet the requirements. It's another solution with 80Plus Bronze, one +12V output and modular cables—quite common features.

Corsair TX550M vs. OCZ ZT550W 550W

The second unit we test today is a power supply from OCZ Technology Group. They're now famous for their SSDs, but they have many power supplies as well. We'll look at the OCZ ZT-Series ZT550W. OCZ is using an 80Plus Bronze design from Great Wall with a few changes in the details. The 80 Plus Bronze certification is standard for any decent PSU today, but maybe it's good enough to beat up Corsair. An advantage is the fully modular design, which is an uncommon feature for the mid-range price segment (except SilverStone's Strider Plus 500W).

In almost every SSD review we have published, Anand has mentioned how an SSD is the biggest performance upgrade you can make today. Why would anyone use regular hard drives then? There is one big reason: price. SSD prices are still up in the clouds when compared to hard drive prices (especially before the Thailand floods) so for many, SSDs have not been a realistic option. While SSD prices have been dropping for years, if the current rate continues it will still take several more years before a $399 Walmart PC has a reasonable size SSD in it.

Most of the time, SSD production costs are cut by shrinking the die. Shrinking the die is the same as with CPUs: you move to a smaller manufacturing process, e.g. from 34nm to 25nm. In flash memory, this means you can increase the density per die and usually the physical die size is also smaller, meaning more dies from a single wafer. A die shrink is an effective way to lower costs but moving from one process to another takes time and the first batches of the new flash aren't necessarily cheaper. Once the new process has matured and supply has met demand, prices start to fall.

Since die shrinks are a relatively slow way to lower SSD prices and only contribute to steady reduction of prices, anyone looking to push higher capacity SSDs into the mainstream will need something more. Right now, that "something more" is called Triple Level Cell flash, commonly abbreviated as TLC. Read on for our full analysis on TLC, including performance and endurance expectations, as well as detailed explanations of why MLC and TLC degrade quicker than SLC!

The one thing that OCZ has been missing for so many years is finally one of its staples: focus. The same company that dabbled in everything from brain mice to DIY notebooks is now almost exclusively an SSD company that peddles power supplies on the side. OCZ's penchant for aggressively trying new things hasn't faded away however. As an SSD maker, OCZ is currently or will in the near future, be shipping drives based on controllers from three different vendors - each with their own strengths. OCZ's relationship with SandForce continues and the Vertex 3 remains OCZ's highest performing offering. A recent partnership with Marvell gives OCZ early experience with native PCIe based SSDs, experience that is extremely important as the industry marches towards a new PCIe based interface standard for SSDs (SATA Express). Finally there's OCZ's own controller, the Indilinx Everest, which it is quickly building momentum behind. It's obviously in OCZ's best interests to have its own controllers in the bulk of the drives it makes, but one doesn't simply build a better controller than everyone else on the first try.

A few weeks ago OCZ released a firmware update for its Octane drives that promised a significant increase in 4KB random write performance. Read on for our analysis of the firmware update!

Earlier this year OCZ acquired Indilinx, one of the first SSD controller makers to really make a splash in the enthusiast community. Ever since OCZ entered the SSD business it wanted to guarantee its independence by securing exclusive rights to a controller. OCZ initially did so by buying up all available inventory, first of Indilinx controllers, then of SandForce controllers. That strategy would only work for a (relatively) short period of time as the controller vendors sought to expand their market by selling chips to OCZ's competitors. A few slip ups on the roadmap and Indilinx was ripe for acquisition. OCZ stepped up to the plate and sealed the deal. Several months later, OCZ debuted its first drive based on an unreleased, exclusive Indilinx design: Octane.

Although Octane didn't set any performance records, it was competitive. Performance was definitely current gen, but the drive was fast enough to give OCZ an in-house alternative to SandForce. There was just one issue: OCZ only sent out 512GB Octane review samples. SSDs get a good amount of their performance by executing reads/writes in parallel across multiple NAND devices. Higher capacities have more devices to read/write in parallel, and thus generally deliver the best performance. The greatest sales volume is of the lower capacity models - they're cheaper to own and NAND prices are falling quickly enough that investing in a 512GB drive rarely makes financial sense.

OCZ finally sent out a 128GB Octane, which I promptly put through our standard test suite.

I have to hand it to OCZ's CEO, Ryan Petersen, I never thought he'd turn the company around in the way that he did. When I first met Ryan around a decade ago, he wanted to know why I wouldn't allow him to advertise OCZ on AnandTech. The company at that time had an extremely bad reputation. It was among the worst I'd ever seen. It was so bad that not only would we not review their products (memory, at the time) but I wouldn't allow OCZ ads to run on the site. Although all advertising on AnandTech is handled through a third party, I still have the ultimate say on what ends up on the site. Back then, OCZ wasn't allowed.

Having just taken over the company, Ryan was eager to know what he had to change to fix OCZ's reputation. I gave him a long list of issues to address. Most of my suggestions were obvious, just to go above and beyond the call of duty in taking care of his customers and our readers. He agreed to do everything on the list, with one exception. I told him that if he really wanted to succeed, he needed to abandon the OCZ name and start fresh. He told me that he didn't believe it was necessary. We agreed to disagree.

I remember leaving that meeting thinking that Ryan didn't stand a chance. Memory companies were a dime a dozen. Differentiation was bordering on impossible. Having to overcome a bad reputation on top of that didn't make things any easier.

Ryan is headstrong. He'll sow a bunch of seed with the hopes of seeing just one blade of grass grow. I consider myself an optimist, but he's a different breed of one. He's had his share of failures over the years. Remember the OCZ brain mouse? The foray into notebook PCs? No one ever succeeded without trying.

Since then OCZ has abandoned memory altogether. It focuses on two product lines: power supplies and SSDs, the latter making up the bulk of its revenue. And earlier this year, OCZ bought one of the first high-performance SSD controller manufacturers - Indilinx.

OCZ's strategy there didn't make sense to me. I knew Ryan wanted to buy SandForce, but SF was too expensive. I asked Ryan why bother with Indilinx if what he really wanted was SandForce? He told me that the best way to drive the price down on SF was to buy Indilinx. It didn't add up until now.

Ryan took a big risk on Indilinx. They had a promising controller in 2009 and he bought up the bulk of what they could make in exchange for exclusivity rights. OCZ made Indilinx, and Indilinx made OCZ. As Indilinx began courting more vendors, OCZ went after SandForce. As soon as a first generation controller was ready, OCZ began shifting its volume from Indilinx to SandForce. More partners stepped up to fill the gap left by OCZ, but by then no one wanted Indilinx - they wanted SandForce based drives.

Simultaneously (perhaps a result?) Indilinx's execution suffered, the stumble was irrecoverable. The value of Indilinx went down, and Ryan got the company for cheap.

I can only assume the strategy was to rinse and repeat. I had heard rumors of OCZ working on its own controller for the past two years. The Indilinx acquisition sped things up considerably. If the Indilinx solution was good enough, OCZ would shift its volume away from SandForce to its own controller. Starve SandForce and swoop back in later to buy them at a more reasonable price. Competition makes for competitive prices on both sides of the fence it seems.

Things of course didn't work out that way. OCZ took a while to get its own controller design done and it was still very dependent on SandForce. At the same time, SandForce had diversified its portfolio. Since the announcement of the Indilinx acquisition, SandForce brought on a number of new partners to sell its drives. Even Kingston signed up. Finally, LSI agreed to purchase SandForce at a number well in the range of what SF was looking to sell for.

The situation didn't play out exactly how Ryan had hoped, I'm sure. But the result actually isn't all that bad. LSI has no intentions of stopping its supply of SandForce controllers to OCZ (or other partners), and all of the work OCZ put into its own controller finally paid off. Personally, it's hard to believe that I'm writing about the company I once advised to completely abandon their brand. Furthermore, I'm not just writing about them, but I'm writing about their first in-house SSD controller. This is our review of the Indilinx Everest based OCZ Octane, read on!