1200W Anted PSU trækker 1700W!
Hyggehjørnet d. 10. maj. 2010, skrevet af (FIH) The Don
Vist: 1185 gange.
hawt damn, den er jo lidt for vild
http://www.hexus.net/content/i... en 1200w psu der trækker 1700w konstant😀
mine mine mine mine mine mine mine 😲
Tråden blev redigeret 2 gange, sidst af jmose d. 10-05-2010 21:59:43.
http://www.hexus.net/content/i... en 1200w psu der trækker 1700w konstant😀
mine mine mine mine mine mine mine 😲
Tråden blev redigeret 2 gange, sidst af jmose d. 10-05-2010 21:59:43.
#1
Men hvorfor så skrive 1200 på den?
syntes det er godt klaret, men ja det må jo næsten være fordi at 1200 er det den er beregnet til, og der hvor dens fejlmargin er bedst, tror det er ligesom med f.eks. en bmw som er begrænset til 250km/t men sagtens kan køre f.eks. 270 men det er gjort fordi at de enkelte dele er kun beregnet til 250 men self kan de klare noget over det i korte perioder.
#3
Trækker 1700W men levere "kun" 1400W
ja 300w spild er jo også en del...
#6
300W/1700W*100%= 17% tab, altså 83% effektivitet. Er det ikke meget normalt?
#6, jo det er det egentligt. bare meget når man tænker over det... men det er en ret go effektivitet.
#8
Den trækker 1.700 Watt ud af stikkontakten. Er rated til 85 % effektivitet.
1.700 Watt x 0,85 = 1.445 Watt
Det er, så vidt jeg kan forstå på det hele, 245 Watt over specifikationerne. Eller 20 %. Noget af en slat alligevel 😲
1.700 Watt x 0,85 = 1.445 Watt
Det er, så vidt jeg kan forstå på det hele, 245 Watt over specifikationerne. Eller 20 %. Noget af en slat alligevel 😲
#9
Eller også yder den ringe, leverer 1200 W, men trækker 1700 W.
#10
1700watt, det er som at have 42x40watt lyspærrer tændt på en gang 🤣
#11
#10 -> Ja, eller som at have 188 stk. 9 watts sparepærer tændt på en gang 😲 😛
Svaret blev redigeret 1 gang, sidst af kvist1992 d. 10-05-2010 16:29:18.
Svaret blev redigeret 1 gang, sidst af kvist1992 d. 10-05-2010 16:29:18.
#12
Eller have ovnen tændt på 200 grader.
#13
#12
Ahhh er du nu sikker på det? 😉
Ahhh er du nu sikker på det? 😉
#14
#13, tilfældigt komfur: http://www.elgiganten.dk/produ...
Tjek lige hvor meget det suger ud af væggen, sikkert med alt tændt og på max.
Tjek lige hvor meget det suger ud af væggen, sikkert med alt tændt og på max.
#15
#14 du er sikker på at det ikke er kamouflage til det nye dual gpu kort fra nvidia ikke? 😎
#16
#15, det er et kabinet til nogle stykker af dem, varmen ledes op til de 4 store køleflader med heatpipes.
#17
Antec TruePower Quattro 1200 er altså bare kongen over alle PSU'er.
Bare en skam den ikke bliver leveret med en 120/140mm blæser istedet 🙂
6x +12 rails hver på hele enorme 38a. Det er vildt.
EDIT: Af ren nysgerrighed spurgte jeg antec's support, om hvorfor de valge en 80mm blæser istedet for en større. Her er svaret:
"Hi Lasse,
First of all, if you are really running 1200 Watts, the PSU fan noise is the least of your worries J.
Your assumption is one of our next PSU myths. The total design including component density, the amount of heat the PSU generates and the airflow inside the PSU all must be taken into consideration. Actually most 120 mm fans do a poor job of cooling higher power PSU's, anything over 850 Watts and 80 Plus Bronze or less will be better served with a straight line cooling design. This is because 120mm fans (or larger) the air most be forced to flow through the power supply at a ninety degree angle.
On a smaller power model, this is generally OK, because the component packing density on the PCB is less and the air can flow OK.but even then most PSU with 120 fans will have dead spots and roughly 30% of the PSU interior will not get properly cooled. Most people don't care because they don't know and accept the myth that you have heard and also believe.
Also, voltage regulated fans turn too slowly (in order to achieve the desired silence) so they will not adequately cool the PSU at full load, shortening component life.
Which leads us back to our example here.let's say you have a 1200 Watt PSU and are running it at full load, even with 80 Plus Silver that means that you have 180 Watts to cool at full load (1200-85%= 180).that's more heat than your CPU! Plus to reach a 1200W PSU, and keep it a reasonable side there are a lot components packed on the PCB that need to be cooled. So the only way you can do that efficiently and effectively is to have the air flow through the PSU in a single line, no turns. Plus by using a PWM controlled fan, as we do, you can have a much broader range of control over your fan speed. Voltage controlled fans cannot turn as slow during low loads or as fast during high loads. At full load our fan will turn fast and keep the PSU cool, but not too fast or loud thanks to the straight path of cooling, and at lower loads it can turn extremely slow and silent.
So, I hope that helps you understand better the choices we made. And, as I said, if you have a high end CPU, three graphics cards and other components going so that you need a 1200W power supply, the PSU noise is really the last thing you will need to worry about, you will have cooling worries far beyond.
Thanks for you interest in our products.
Regards,
Scott"
Svaret blev redigeret 2 gange, sidst af wendigo d. 10-05-2010 21:30:04.
Bare en skam den ikke bliver leveret med en 120/140mm blæser istedet 🙂
6x +12 rails hver på hele enorme 38a. Det er vildt.
EDIT: Af ren nysgerrighed spurgte jeg antec's support, om hvorfor de valge en 80mm blæser istedet for en større. Her er svaret:
"Hi Lasse,
First of all, if you are really running 1200 Watts, the PSU fan noise is the least of your worries J.
Your assumption is one of our next PSU myths. The total design including component density, the amount of heat the PSU generates and the airflow inside the PSU all must be taken into consideration. Actually most 120 mm fans do a poor job of cooling higher power PSU's, anything over 850 Watts and 80 Plus Bronze or less will be better served with a straight line cooling design. This is because 120mm fans (or larger) the air most be forced to flow through the power supply at a ninety degree angle.
On a smaller power model, this is generally OK, because the component packing density on the PCB is less and the air can flow OK.but even then most PSU with 120 fans will have dead spots and roughly 30% of the PSU interior will not get properly cooled. Most people don't care because they don't know and accept the myth that you have heard and also believe.
Also, voltage regulated fans turn too slowly (in order to achieve the desired silence) so they will not adequately cool the PSU at full load, shortening component life.
Which leads us back to our example here.let's say you have a 1200 Watt PSU and are running it at full load, even with 80 Plus Silver that means that you have 180 Watts to cool at full load (1200-85%= 180).that's more heat than your CPU! Plus to reach a 1200W PSU, and keep it a reasonable side there are a lot components packed on the PCB that need to be cooled. So the only way you can do that efficiently and effectively is to have the air flow through the PSU in a single line, no turns. Plus by using a PWM controlled fan, as we do, you can have a much broader range of control over your fan speed. Voltage controlled fans cannot turn as slow during low loads or as fast during high loads. At full load our fan will turn fast and keep the PSU cool, but not too fast or loud thanks to the straight path of cooling, and at lower loads it can turn extremely slow and silent.
So, I hope that helps you understand better the choices we made. And, as I said, if you have a high end CPU, three graphics cards and other components going so that you need a 1200W power supply, the PSU noise is really the last thing you will need to worry about, you will have cooling worries far beyond.
Thanks for you interest in our products.
Regards,
Scott"
Svaret blev redigeret 2 gange, sidst af wendigo d. 10-05-2010 21:30:04.
#18
Fed mail fra deres support.!! 😉
#19
-> #17
Men det er jo rigtigt nok. Hvis effektiviteten er tilstrækkelig høj, vil behovet for køling af overskudsvarme være minimalt 🙂
Men det er jo rigtigt nok. Hvis effektiviteten er tilstrækkelig høj, vil behovet for køling af overskudsvarme være minimalt 🙂