Silver Power Blue Lightning 600W
by Christoph Katzer on August 27, 2007 6:00 AM EST- Posted in
- Cases/Cooling/PSUs
Packaging and Appearance
In order to keep costs down, MaxPoint has cut a lot of goodies and extras from the package relative to high-end power supplies. Everything is packed in a colorful box, which provides basic information about the power supply within. The PSU itself has almost no protection within the box and could potentially be damaged during transport - like most users, we've encountered our fair share of DOA power supplies that were very likely damaged during shipping. A small user manual is included that contains very little information, but then again there's not a lot to say.
In terms of the power supply itself, the casing is quite unusual. Small rectangles have been punched out of the back of the unit to serve as an exhaust for the airflow. This type of perforation used to be more common in the past, but most manufacturers these days use hexagonal punch outs. The theory is that the hexagon shapes improve airflow without creating turbulence, compromising structural integrity, or creating unacceptable EMI. The approach that Silver Power has taken might be adequate, but we can see that the top portion of the perforations appear to be of little use as the 120mm fan blocks most of these holes. In fact, much of the space on the rear of the power supply seems like it could be used for ventilation. Of course, whether this is actually necessary is something we'll uncover in the course of this review.
MaxPoint doesn't state the input voltage range on the power supply itself, but this information is indicated on the packaging. The range is listed as 110-240VAC. We tested at our usual 100/115/230VAC however and encountered no problems with a 100VAC input.
In order to keep costs down, MaxPoint has cut a lot of goodies and extras from the package relative to high-end power supplies. Everything is packed in a colorful box, which provides basic information about the power supply within. The PSU itself has almost no protection within the box and could potentially be damaged during transport - like most users, we've encountered our fair share of DOA power supplies that were very likely damaged during shipping. A small user manual is included that contains very little information, but then again there's not a lot to say.
In terms of the power supply itself, the casing is quite unusual. Small rectangles have been punched out of the back of the unit to serve as an exhaust for the airflow. This type of perforation used to be more common in the past, but most manufacturers these days use hexagonal punch outs. The theory is that the hexagon shapes improve airflow without creating turbulence, compromising structural integrity, or creating unacceptable EMI. The approach that Silver Power has taken might be adequate, but we can see that the top portion of the perforations appear to be of little use as the 120mm fan blocks most of these holes. In fact, much of the space on the rear of the power supply seems like it could be used for ventilation. Of course, whether this is actually necessary is something we'll uncover in the course of this review.
MaxPoint doesn't state the input voltage range on the power supply itself, but this information is indicated on the packaging. The range is listed as 110-240VAC. We tested at our usual 100/115/230VAC however and encountered no problems with a 100VAC input.
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Per Hansson - Monday, August 27, 2007 - link
If you take a DMM and measure the power drop on the actual molex connectors, and not take the results directly from the Chroma how does it look then?I suspect you have an exponential increase in resistance which causes the Chroma to display incorrect voltage values... (Because of the cable length from the PSU's connectors and up to your load, including interface boards)
Sincerely - Per Hansson
MrOblivious - Monday, August 27, 2007 - link
Well that and if this really is a Solytech (Deer) it could just be a flaming hunk of crap.Per Hansson - Monday, August 27, 2007 - link
Yea, but the voltage resistance issue is something that has been the same for all PSU reviews here at AnandWhen you have this problem with all PSU's you need to realize there is something wrong with your testing equipment, sorry for being so blunt... (Especially since none of the other 2 big sites report the same)
And yes, some scope readings for this DEER PSU sure would have been interesting (just to make sure to beat the dead horse a bit more)
Christoph Katzer - Tuesday, August 28, 2007 - link
Strange though that the Zippy G1 has nearly the whole time close to to 12.0v. I have seen reports from the companies and they look similar (also the high efficiency) and thus I don't think the resistance will be a big issue.MrOblivious - Tuesday, August 28, 2007 - link
Are they using a Chroma as well for those test reports? Or are they reading directly at the connector without another interface like the spec calls for?Christoph Katzer - Tuesday, August 28, 2007 - link
"Every" company in Taiwan uses Chroma for their own evaluations.Per Hansson - Tuesday, August 28, 2007 - link
Christoph Katzer; The issue is of course not that you are using the Croma, it's a great unit; however, the way you use it will most likely result in incorrect voltage readingsDue to the fact that the resistance in the cables loading the unit will most likely result in a exponential increase in resistance, therefore the results shown by the Chroma will be incorrect, and more incorrect as the load increases and the resistance exponentially increases...
Just putting a multimeter on an unloaded Molex connector, or, directly on the molex connector you are loading (and not further down where the chroma reads the voltage) would quickly prove or disprove my theory
mindless1 - Thursday, August 30, 2007 - link
You are correct, that a high enough current on too low a wire gauge does cause significant voltage drop, I have observed it many times myself particularly with some of the poorer PSU using 12V connectors with less than 18 ga. wires.However, similarly we can't just take the reading from an unused molex connector instead, as a PSU is spec'd to provide it's voltages at the load through the existing wiring harness. It is not necessary to try to evenly distribute that load across all the wire pairs in that harness as that is a practically impossible scenario for implementation running a system, so a bit of a derating factor is needed to appoximate the typical expected loads. IMO, a good start would be loading each supply wire at about 6A (not counting ground returns) up until the rating per rail is met, leaving some supply wires per rail unused when (sum of rail wires * 6A) > rated current per rail. Obviously some connectors and leads are more robust and necessary than others, for example a floppy connector should just be ignored while the 2 x n 12V CPU connector should always be used.
mindless1 - Thursday, August 30, 2007 - link
I meant, high enough current on too high, too small a wire gauge.JarredWalton - Tuesday, August 28, 2007 - link
But wouldn't regular PC components drawing power from a PSU result in the same sort of increase in resistance? (Note: I'm not at all an electrician, so I could be wrong. Just asking a question.)