| Thread Tools |
3rd April 2009, 13:57 | #1 |
Madshrimp Join Date: May 2002 Location: 7090/Belgium
Posts: 79,021
| OCZ Z-Series PSU Gets 80 Plus Certification World of power supplies is quite a confusing one, especially after the debut of "80 Plus" certification. According to the standard's body,80plus.org , 80 Plus is combined between Bronze, Silver and Gold certificates, with gold being over 90% efficient at 50% load and a minimum of 88% efficiency at full load. During last months' CeBIT show in Han(g)over, Germany - the company stated that their upcoming products will feature 80 Plus Gold certificate for some products. Couple of weeks later, we received news that upcoming 1kW Z-Series received its 80 Plus Gold certificate, claiming that their new power supply will feature 88.23% at 20% load, 90.93% at 50% load and 89.20% at 100% load. Put it layman's terms, this power supply will output 892W at 100% load, or equal amount of juice than some 1100 and 1200W power supplies with lower efficiency ratings. http://www.brightsideofnews.com/news...y-arrives.aspx
__________________ |
4th April 2009, 22:58 | #2 |
Posts: n/a
| Layman's terms like those are what confuses people most - they got it completely wrong: the PSU will (hopefuly) output 1000W DC at full load, that's what it's rated for, and those 1000W will be 89,2% of the total amount of energy consumed by the PSU, which is hence 1121W. For comparison, a 1000W PSU with 80% efficiency at full load would consume 1250W, which is 129W more - a huge amount of additional heat. So that's what some people may be thinking - I'll buy the higher efficiency model, because its real output will be closer to the rated output... lol |
5th April 2009, 00:33 | #3 |
Posts: n/a
| NPP you are very correct, they do not know how PSUs function. |
5th April 2009, 09:28 | #4 |
Posts: n/a
| Your indeed right ... I realy don't know what confuses these guys. Every PSU (and not only those in computers) mention the amount of energy it can deliver, the amount of energy it consumes is hardly mentioned. It's the most easy way because you don't need the now the power efficiency to select the right power supply. //edit: took the time to contact Theo from BSN, hope he'll update the article to prevent more confusion Last edited by wutske : 5th April 2009 at 09:39. |
5th April 2009, 12:15 | #5 |
Madshrimp Join Date: May 2002 Location: 7090/Belgium
Posts: 79,021
| yes that's quite a goof by Theo
__________________ |
5th April 2009, 13:56 | #6 | |
Posts: n/a
| This is what he had to say: Quote:
| |
5th April 2009, 15:33 | #7 |
Madshrimp Join Date: May 2002 Location: 7090/Belgium
Posts: 79,021
| nice story; but doesn't make his claim through
__________________ |
5th April 2009, 17:20 | #8 |
Posts: n/a
| Same idea. I just had a 3 years cours of electronics behind my back, the theory is still fresh in my head and power ratings never include the power efficiency. Peak power sometimes is used for commercial purposes, but this values doesn't include efficiency either. |
6th April 2009, 06:09 | #9 | ||
Posts: n/a
| Quote:
It also must be taken into consideration when looking at readings from a wall power meter... 750W draw from the wall means the system is drawing 600W to function assuming a flat 80% AC/DC conversion efficiency (which is a huge oversimplification, but for the sake of an example... ) Quote:
PSUs are rated for a set output. This is not like hard drives where the GB rating is overstated. Some PSU manufacturers still cheat and overstate their PSU rating / capability. If he wants to convince me of this I'd need to hear an electrical engineer from one of these PSU companies confirming this. Just as he claims it goes against his experience, it goes against all the experience I have and what information I have studied regarding power supplies. Last edited by Kougar : 6th April 2009 at 06:20. | ||
6th April 2009, 08:53 | #10 | |
Posts: n/a
| Quote:
Second, if a 400W audio station can't run stable on 850W+ PSUs than I think it's time he either change the motherboard or change the electrical wirings in his house. | |
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Enermax launches 80PLUS® Gold certified PSU series Pro87+ and Modu87+ | jmke | WebNews | 0 | 14th January 2010 10:41 |
OCZ Z Series 850W PSU Review | jmke | WebNews | 0 | 28th September 2009 12:46 |
OCZ 550W Fatal1ty ( OCZ550FTY) Series PSU Review | jmke | WebNews | 0 | 28th August 2009 09:41 |
Enermax ECO80+ - Most Silent PSU Series | jmke | WebNews | 0 | 6th August 2009 13:28 |
OCZ Technology Introduces the Agility Series 2.5” Solid State Drives | jmke | WebNews | 0 | 10th June 2009 10:55 |
OCZ Technology Introduces Summit Series SSDs | jmke | WebNews | 0 | 20th May 2009 10:10 |
OCZ Technology Introduces New Apex Series Solid State Drives | jmke | WebNews | 0 | 14th January 2009 17:05 |
OCZ Technology Group Introduces New Flex EX Performance Memory Series | jmke | WebNews | 0 | 17th December 2008 09:31 |
OCZ Announces PC-5000 Platinum DFI nF4 Special Series | jmke | WebNews | 0 | 7th April 2005 12:03 |
OCZ Announces PC3200 Gold Series with 2-2-2 Timings | jmke | WebNews | 0 | 24th March 2005 09:16 |
Thread Tools | |
| |