garycase Posted June 18, 2013 Share Posted June 18, 2013 3-5 watts waste is something I can certainly live with 3-5 watts is what a 400w PSU would typically waste at 20w draw. A 650w unit would likely be down to about 60% efficiency at that low a draw ... so it would waste more like 8 watts ... but I'm sure you can live with that as well :) Link to comment
landS Posted June 18, 2013 Author Share Posted June 18, 2013 3-5 watts is what a 400w PSU would typically waste at 20w draw. A 650w unit would likely be down to about 60% efficiency at that low a draw ... so it would waste more like 8 watts Oh No! $7.30/year of wasted electricity due to my beefy psu. Link to comment
garycase Posted June 18, 2013 Share Posted June 18, 2013 3-5 watts is what a 400w PSU would typically waste at 20w draw. A 650w unit would likely be down to about 60% efficiency at that low a draw ... so it would waste more like 8 watts Oh No! $7.30/year of wasted electricity due to my beefy psu. Hey, that's $3.10 more than the $4.20 I'm wasting due to my not-quite-so-beefy 400w unit ... that's almost enough to buy a fancy cup of Starbucks !! Link to comment
landS Posted June 18, 2013 Author Share Posted June 18, 2013 I guess Ill need to drink 2 glasses of water to break even. Boy I want some starbucks... BRB.... Water drunk... Now back to starbucks. Link to comment
c3 Posted June 19, 2013 Share Posted June 19, 2013 Agree -- if the user could set (a) the timer value (in perhaps 1/4 sec increments); and (b) the max number of simultaneous spin-ups; then we could use MUCH lower capacity PSU's that would let us run them at least closer to their 80+ efficiency range. Folks buying 650w and 750w PSUs for UnRAID boxes think they're getting great efficiency, since they tend to be 80+ Gold or Platinum units ... but if they're drawing less than 130W (650w unit) or 150w (750w unit) they're running far below 80% efficiency => the efficiency generally drops off rapidly below the 20% threshold. A staggered spinup would let most folks use 350w or 450w units, which would be much more efficient at typical operating draws. A 760W 80+ platinum is over 90% efficient at 150W. And in testing (http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story2&reid=235) never dropped below 79.3% with under 5W load. That's 0.6% load and still nearly 80% efficient. The 80+ titanium spec includes a 10% load test, why? because they can pass it. There is a reason why the fan does not spin below 20%, there is no heat to remove, no 8w heat loss. I would not add capacitive load to the power up cycle, which is what this product does. My concern is capacity inrush current. This product will increase the current demand at power on, which is the very short, very high demand period. As previously said, adding these will not solve a PSU problem. Link to comment
landS Posted June 24, 2013 Author Share Posted June 24, 2013 MMMMmm One of these things is not like the other Link to comment
garycase Posted June 24, 2013 Share Posted June 24, 2013 The 80+ titanium spec includes a 10% load test Nice to know. I didn't see that anywhere in the 80+ specifications that I downloaded => do you have a link to the updated specs? Link to comment
Harpz Posted June 24, 2013 Share Posted June 24, 2013 MMMMmm One of these things is not like the other lol nice catch Link to comment
garycase Posted June 24, 2013 Share Posted June 24, 2013 I suspect both of the leftmost wires are grounds ... so it makes no difference if they're crossed. Link to comment
jumperalex Posted June 24, 2013 Share Posted June 24, 2013 DANGER WILL ROBINSON!!! Per this diagram: http://media.bestofmicro.com/Power-Supply-Fundamentals,8-I-312642-13.jpg they have crossed a 12v and gnd wire. I would NOT use that cable and I would return it for a replacement. Link to comment
garycase Posted June 24, 2013 Share Posted June 24, 2013 Does indeed look like that's the case !! Link to comment
BobPhoenix Posted June 24, 2013 Share Posted June 24, 2013 DANGER WILL ROBINSON!!! Per this diagram: http://media.bestofmicro.com/Power-Supply-Fundamentals,8-I-312642-13.jpg they have crossed a 12v and gnd wire. I would NOT use that cable and I would return it for a replacement. The only way to know for sure that it is a crossed connection is to test it. It could be crossed internally inside the plastic then crossed again to make a proper connection outside. If it truely is crossed then a continuity test would show if the same pin on the input connector is connected to the same pin on the output connectors. Personally I think it is a crossed connection and should be returned but a test should prove it. Link to comment
jumperalex Posted June 24, 2013 Share Posted June 24, 2013 That would mean they noticed in manufacture that they screwed up once on the internal piece, and then decided to correct it via external crossed wires again vice just tossing it. It certainly was not a post-production manual fix. But still not impossible I guess [shrug]. I would certainly be VERY interested to find out the results of a test especially if it turns out that it test correctly Link to comment
landS Posted June 24, 2013 Author Share Posted June 24, 2013 I have an email out to their tech support... I would really doubt they would correct an internal layout issue with the line out. AND.... Another way to go about this... Just build our own from the PSU outwards... cheap and Exact Lengths Needed! Wire: Local Hardware Store Molex Feed Through Cover $0.20 http://www.newark.com/molex/67926-0041/feed-through-cover-sata-idt-receptacle/dp/74M7659 Molex Sata Power Inline 67926-0011 $0.52 http://www.newark.com/molex/67926-0011/sata-connector-receptacle-5pos/dp/63K9266 Or Molex Sata Power Inline Locking 67926-0001 $1.70 http://www.newark.com/molex/67926-0001/receptacle-idt-sata-3-81mm/dp/74M7656 http://www.farnell.com/datasheets/5252.pdf Link to comment
BobPhoenix Posted June 24, 2013 Share Posted June 24, 2013 That would mean they noticed in manufacture that they screwed up once on the internal piece, and then decided to correct it via external crossed wires again vice just tossing it. It certainly was not a post-production manual fix. But still not impossible I guess [shrug]. I would certainly be VERY interested to find out the results of a test especially if it turns out that it test correctly True. My thought was that the wiring was all assembled first then the plastic covers were molded/stamped onto it. If the plastic covers are pre-manufactured and slipped on in construction then there would be almost a zero percent chance that it would work. Link to comment
jumperalex Posted June 24, 2013 Share Posted June 24, 2013 I have an email out to their tech support... I would really doubt they would correct an internal layout issue with the line out. AND.... Another way to go about this... Just build our own from the PSU outwards... cheap and Exact Lengths Needed! Wire: Local Hardware Store Molex Feed Through Cover $0.20 http://www.newark.com/molex/67926-0041/feed-through-cover-sata-idt-receptacle/dp/74M7659 Molex Sata Power Inline 67926-0011 $0.52 http://www.newark.com/molex/67926-0011/sata-connector-receptacle-5pos/dp/63K9266 Or Molex Sata Power Inline Locking 67926-0001 $1.70 http://www.newark.com/molex/67926-0001/receptacle-idt-sata-3-81mm/dp/74M7656 http://www.farnell.com/datasheets/5252.pdf I have considered just such an option Link to comment
c3 Posted June 24, 2013 Share Posted June 24, 2013 Looks like another great reason to avoid them... Link to comment
c3 Posted June 24, 2013 Share Posted June 24, 2013 The 80+ titanium spec includes a 10% load test Nice to know. I didn't see that anywhere in the 80+ specifications that I downloaded => do you have a link to the updated specs? version 6.6 from Apr 2, 2012 includes the 10% load testing. Link to comment
landS Posted June 25, 2013 Author Share Posted June 25, 2013 The crossed wire one is a manufacturing defect according to silverstone. So... I decided to test continuity across the lines per gary's spec link. on the good one ... and ... one of the grounds did not complete it's path through the molded connector all confidence shaken, both returned. Link to comment
WizADSL Posted June 28, 2013 Share Posted June 28, 2013 <snip> I also was not meaning that these cool little power cables, which I am mostly attracted to for cable management purposes also, should be considered a fix for a marginal power supply, or to make a bad power supply better. I was actually more thinking that if a person were to use these, that it is quite conceivable that as a power supply degrades normally from aging, that the added capacitors in the cables could mask, for a time, the failing power supply. Making in at least some situations, the power supply usable for a longer life span. <snip> If you're primarily interested in these power connectors for cable management, you may want to look at theses too: http://www.outletpc.com/bo4654.html Also, I had started a topic for Molex connectors here: http://lime-technology.com/forum/index.php?topic=28223.0 Link to comment
neilt0 Posted June 28, 2013 Share Posted June 28, 2013 I bought some BitFenix Molex to 4 SATA cables at the same time as some NZXT ones and I think the NZXT ones are higher quality and have a more secure fit. http://www.onebigdot.com/department/pc/viewPrd.asp?idcountry=218&idproduct=3373468&idcategory=0 Link to comment
WizADSL Posted June 28, 2013 Share Posted June 28, 2013 I bought some BitFenix Molex to 4 SATA cables at the same time as some NZXT ones and I think the NZXT ones are higher quality and have a more secure fit. http://www.onebigdot.com/department/pc/viewPrd.asp?idcountry=218&idproduct=3373468&idcategory=0 While searching for a US supplier for those cables I came across this: http://www.tweaktown.com/reviews/4343/sleeved_cabling_head_to_head_bitfenix_vs_modright_vs_nzxt/index.html Link to comment
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