Our load tests utilize a couple of FAST ATE active load testers and a variety of other equipment such as an oscilloscope, power conditioner, temperature probe and a power consumption meter. You can read more about our standard testing approach here.
The tests performed are based around six conceivable setups that are out there and progressively load down the PSU up to the power supply's limits or 1000W, whichever comes first. Since our test equipment's limits are higher than that of the OCZ ZS750, we can test it to the maximum.
The OCZ ZS750 does a decent job at voltage regulation for a budget power supply. The unit was able to stay within 2% of specification on both the 5V and 12V rails. This went up a little bit higher on the 3.3V rail as the unit started out in Test 1 showing a maximum of 3.39V. All of the voltages were well within ATX specifications and nothing to be worried about.
DC output quality certainly isn't one of the strongest areas for the ZS750, but it did pass the ATX specifications. The unit started out showing a 17mV ripple on the oscilloscope during Test One and it steadily increased as the loads were ramped up. By Test 3 we were seeing nearly 40mV of noise on the 12V rail and this continued to climb up to 54mV during the full loads of Test 5. We'd like to see better, but you can only get so much out of a sub $100 power supply.
The OCZ ZS750 comes with an 80Plus Bronze efficiency rating, meaning that it must be 82%/85%/82% efficient at 25%/50%/100% loads respectively. Our test unit started off strong with an efficiency of over 84% during Test 1, but seemed to flirt with falling out of specification the rest of the way. In the end, all that matters is that the unit passed our tests and showed that it was worthy of the rating.
As we have seen with several of our recent power supplies, there are certainly some sacrifices that must be made when you are powering a PC on a budget. There is a constant struggle between efficiency, output quality and regulation. Finding the balance between them is the real challenge for making sure the money is well spent.
With the results shown by our tests today, we have to say that OCZ has done a great job with the ZS750. They really have found the "ideal blend of quality, performance and efficiency for power hungry desktops."
PRICING: You can find products similar to this one for sale below.
United States: Find other tech and computer products like this over at Amazon's website.
United Kingdom: Find other tech and computer products like this over at Amazon UK's website.
Canada: Find other tech and computer products like this over at Amazon Canada's website.
- Page 1 [Introduction, Specifications, Availability and Pricing]
- Page 2 [The Packaging]
- Page 3 [Inside the Box]
Recommended for You
- We at TweakTown openly invite the companies who provide us with review samples / who are mentioned or discussed to express their opinion of our content. If any company representative wishes to respond, we will publish the response here.
Latest News Posts
- SK Hynix announces GDDR6, offers up to 14Gbps of bandwidth
- Nintendo shows off most downloaded eShop games
- Battlefield 1: Apocalypse DLC details aerial dogfights
- Nintendo Switch sells 1.5 million units last month
- Epic Games doubts the success of their own MOBA Paragon
- NVIDIA's next-gen TITAN X should rock 16GB GDDR6 at 14Gbps
- SuperData Analyst Interview on Call of Duty: WWII Success
- GIGABYTE Z370XP SLI (Intel Z370) Motherboard Review
- The GIGABYTE Z370N WIFI (Intel Z370) Motherboard Review
- noblechairs ICON Series Real Leather Gaming Chair Review
- Toshiba Memory America Unveils UFS Devices Utilizing 64-Layer, 3D Flash Memory
- ASUS Announces GeForce GTX 1070 Ti Series Gaming Graphics Cards
- ASUS Announces ASUS Hangouts Meet Hardware Kit
- Colorful Announces iGame GeForce GTX 1070 Ti Vulcan X Top
- Gainward Announces its GeForce GTX 1070 Ti Series