Joined in 2023 
82 
63 About this deal
The 135 mm fan responsible for the cooling needs of the HX850 is the Corsair NR135P, a fan we frequently see in the company’s high-performance PSUs. Unfortunately, we cannot identify the OEM of the fan but we can tell that it is a quality model with a fluid dynamic bearing engine for longevity. It has a maximum speed of about 1500 RPM but, considering the unit’s output and efficiency, it is highly unlikely that it will be reaching this speed under normal operating conditions. The HX850 features full range fan control with a passive mode, meaning that the PSU’s thermal circuitry will not even start the fan unless airflow becomes necessary. Finally, the APFC converter is well-designed. Its readings are sky-high, even during the 10% load test. Now my (several) question(s) would be: in this specific case, where I'm going for a more "silent airflow build" and with the components mentioned above, would the 3 PSUs be sufficient and quiet enough?
At 1.15%, load regulation is fairly good on the +12V rail. It's within 1% on the minor rails, while the 5VSB rail features super-tight load regulation compared to what we're used to. The current BQ models are also out of the question since the only offer 5 years warranty (+ other models perform and/or are designed better) I know all the differences between these models as well as the tech specs and components used (cables, fans) so there is no need to go into all of those details (thanks to JG forum, Tom's hw/Aris and couple of other reviewers and guys here on LTT forum). Each of Corsair’s seven PSU series has been developed with a specific market group in mind. The company is constantly upgrading/adapting the products of each series with new revisions, but the specific market group for that series always remains unchanged. For example, their first series, the HX, was developed to target the demanding high-end market. The original HX520W and the HX620W are now but a distant memory, yet the HX series is still targeted towards demanding PC enthusiasts, consisting of eight high output (750-1200 Watt) units with very impressive specifications. The only downside (imo) for the RM850x (2018) would be the rifle bearing fan (its longevity) and the cables - which I don't mind that much if they keep the ripple under better control. Will the rifle bearing fan last long enough or would a PSU with and FDB fan be a better option for my ocd (hx850/1000w, ion+ 860p)The thing is I would like to buy first and foremost high-quality (reliable/proven platform) psu which is silent and would basically work as an almost passive "solution" at 500-600w, or with a loosely profiled fan spinning at low rpms at that wattage. Avoid the coild whine would also be preferred. The +12V rails can deliver up to 40A each in multi-rail mode. According to Corsair, each individual connector has over-current protection, so no more than 40A goes through any given cable.
There is a switch that lets you choose between one +12V rail or multiple +12V rails. Across the HXi family, this is achieved using Corsair Link software. However, since the HX models don't have a digital interface, a different approach had to be used.Mainboard - Bo Mạch Chủ Intel Z790 ( mới ) Intel B760 ( Mới ) AMD X670 ( mới ) AMD B650 ( mới ) Intel H610m ( mới ) Intel B660 Intel Z690 Intel X AMD TRX40 HUANANZHI Intel LGA 3647 Corsair (HX or AX series only) is one of only three PSU manufacturers I consider for builds as well. I have seen good reliability out of them with their HX and AX series supplies. Judging by your criteria, I propose considering Seasonic for your short list as well. I've installed several of their old X-Series power supplies that are about the same age as your H620 and still going strong. Two of them are 24-7 operators (Folding@home or gaming) with multiple GPUs. The irony is Corsair used Seasonic's platform for a lot of their earlier HX and AX series PSUs so your HX620 may in fact be a Seasonic platform. Their prime series has some of the best performance in the industry (Similar to Corsairs Flextronics based AX1200/AX1500) and they come with a 12 year warranty. About the only thing missing (for those who can use it) is a Corsair Link equivalent. Pricing is competitive with Corsairs HX and AX series supplies and the better deal usually comes down to which one is on sale. So the choices fell on those 3-4 psu options ( hx850 included for ~180e), not that I would be against any other better options under 200 euros... There are two EPS and six PCIe connectors, along with 16 SATA and six peripheral ones. Corsair's cable length is satisfactory. However, we cannot say the same for the distance between SATA and peripheral connectors, which is too small. Power Distribution
Great Deal 
New Comment