To learn how we measure ripple, please click here.
The following table includes the ripple levels we measured on the SSR-650TD's rails. The limits, according to the ATX specification, are 120 mV (+12V) and 50 mV (5V, 3.3V and 5VSB).
|10% Load||7.1 mV||5.0 mV||6.1 mV||3.5 mV||Pass|
|20% Load||9.2 mV||5.4 mV||6.1 mV||3.8 mV||Pass|
|30% Load||10.0 mV||5.5 mV||6.7 mV||4.2 mV||Pass|
|40% Load||10.1 mV||5.5 mV||6.8 mV||3.7 mV||Pass|
|50% Load||10.2 mV||5.6 mV||6.6 mV||3.7 mV||Pass|
|60% Load||10.6 mV||5.6 mV||6.9 mV||4.1 mV||Pass|
|70% Load||9.5 mV||6.2 mV||7.8 mV||4.6 mV||Pass|
|80% Load||9.9 mV||7.4 mV||8.3 mV||5.4 mV||Pass|
|90% Load||10.6 mV||7.7 mV||10.5 mV||5.6 mV||Pass|
|100% Load||12.2 mV||8.0 mV||11.7 mV||6.2 mV||Pass|
|110% Load||13.3 mV||8.0 mV||11.9 mV||7.1 mV||Pass|
|Cross-Load 1||8.9 mV||6.8 mV||8.2 mV||3.9 mV||Pass|
|Cross-Load 2||11.9 mV||7.1 mV||11.3 mV||5.3 mV||Pass|
Ripple suppression is amazing, and made more impressive by the fact that this performance is achieved without any extra filtering caps on the modular cables. Seasonic's engineers did wonders with this platform, proving that they're able to offer ripple-proof designs.
Ripple Oscilloscope Screenshots
The following oscilloscope screenshots illustrate the AC ripple and noise registered on the main rails (+12V, 5V, 3.3V and 5VSB). The bigger the fluctuations on the screen, the bigger the ripple/noise. We set 0.01 V/Div (each vertical division/box equals 0.01 V) as the standard for all measurements.
Whoops accidental upvote above.
Haswell ready: I was thinking to change this to S6/S7 compatible. Probably the time has come for this to happen.
With no capacitors in the cables, can't see a reason not to flatten the atx connector as well. I guess the sleeved atx connect look has become somewhat traditional. Not a criticism by any means, just saying.
On Jonnyguru Oklahomawolf likes the ATX cable to be sleeved and the others to be ribbon; this is because 24 wires can sometimes become difficult to manage in ribbon style versus sleeved. That's just his thinking at least, and I sort of understand where he comes from with that. If it's ribbon style that also makes it an extremely wide cable, whereas if it is sleeved it's more narrow for better cable routing and then widens up at the end.
I don't really understand the big "ooh wow" about Titanium rates PSUs; all it is is a "green" energy consumption rating and unless you pay well above the average US utility costs, you'll never get a positive ROI. What I don't understand is why "PSUs and cables" aren't offered as a "bundle". I hate paying a quality set of cable and then leaving them in a box. I'd like to see some PSU manufacturer "step up" and and say offer every PSU with a $xx coupon for a set of cables. The value of the coupon would cover the basic cable set so it would essentially come free with the PSU. OTOH, if you wanted to move up to a, individually sleeved set, you would only have to pay the difference between the base set and the set of your choice