GTX 260 Fail. A lot.

[kregoron]

kreg.
what dossent make sence and what does. i have seen the numbers and i know it.

i dont know where your specs are from but fair. think you should come by some day and il show you how to play with nitrogen and voltages

try this one
http://www.elektronik-lavpris.dk/product_info.php?products_id=110828
once and for all.



i spoke to one of the leadin experts on this area, Josh from nVidia, Josh is one of mine good friends and personal sponsor for our OC team..


- claw

what doesnt make sence is that your knowledge of voltage, amps and wattage,
if as you were saying, pulling 1300watts at 60 amps, you would be pulling 21.6 volts, which doesnt make sense, as 1 your puter draws 230 volts from the power socket, and internally only operates at 3.3, 5 and 12 volts.. so where does the 21.6 volts come from.

The reason why nVIDIA say 40 amps, is 1 to make sure that your total psu amps is sufficient for your total rig, 2 is to make sure that people dont go out and buy shitty psu's with overrated amp/wattage which dies as soon as you power on the puter..

the measurement apparatus you linked measures your power consumption in wattage like the rest of em, atleast when you want to measure consumption, so if your sitting and watching the voltage from the plug, your might just be getting bored at some point..

about ocing, still has nothing to do with the thread, but trust me, i got my fair bit of oc wr attempts over the days together with k|ngp|n, pt1t, cornerjack and the rest of the chaps, back in the awsome XP1700+ days

but i cant really see the point of this derailing of the thread, so beyond this i wont be going off topic as this is just turning into a imature epeen contest, which your knowledge of electricity showed me how fail it was.

disconnecting derail mode, back on track ladies

sorry Dogmeat

[kregoron]

some weird and wonderful replies
 
 
anyhow as long as the new PSU has the minimum for the gtx 260 in amps on the 12v rails Plus i would say another 10 or 15 for good measure than that would be enough
 
also the main and aux psu's dont know what each other are doing, i would suggest that when 1 lowers it amps the other cant compensate because the regulators are in differant boxes , wheras on multi rail system there is regulation between the rails to ensure the ampage/voltage requirement is met

you are right my dear friend.. go for a nice psu, as it will be running at lower temps if not presured to much

when running a sli psu setup there is danger of burning the hardware, especially in your setup..

the card is being supplied with volts from two sources, 1 might be supplying 12.1 volts, the other 11.8, which is pretty bad for your card, and can cause danger of damage or instability.
it draws power from both as main source is the pci-e port supplied by your std psu, and power connectors is supplied by aux psu

But get the card tested out with a good psu, preferrably in your own computer, if it runs smooth, you need a new psu, if not then its something else causing the trouble

[DogMeat]

i would suggest that when 1 lowers it amps the other cant compensate because the regulators are in differant boxes , wheras on multi rail system there is regulation between the rails to ensure the ampage/voltage requirement is met

As I said, with a single psu, the system failed even faster.

The point is moot anyway as the GTX260 is out and the 7950 is back in until a suitable psu is sourced.

I'm seriously annoyed at having to junk a Ã,£75 psu and spend at least as much again on another one, though... :angry:

[kregoron]

As I said, with a single psu, the system failed even faster.

The point is moot anyway as the GTX260 is out and the 7950 is back in until a suitable psu is sourced.

I'm seriously annoyed at having to junk a Ã,£75 psu and spend at least as much again on another one, though... :angry:

id still advise to test the new card in your setup with a new good psu to ensure its just not a bad sample gfx card you received

[Claw]

what doesnt make sence is that your knowledge of voltage, amps and wattage,
if as you were saying, pulling 1300watts at 60 amps, you would be pulling 21.6 volts, which doesnt make sense, as 1 your puter draws 230 volts from the power socket, and internally only operates at 3.3, 5 and 12 volts.. so where does the 21.6 volts come from.

The reason why nVIDIA say 40 amps, is 1 to make sure that your total psu amps is sufficient for your total rig, 2 is to make sure that people dont go out and buy shitty psu's with overrated amp/wattage which dies as soon as you power on the puter..

the measurement apparatur you linked measures your power consumption in wattage like the rest of em, atleast when you want to measure consumption, so if your sitting and watching the voltage from the plug, your might just be getting bored at some point..

about ocing, still has nothing to do with the thread, but trust me, i got my fair bit of oc wr's over the days together with k|ngp|n, pt1t, cornerjack and the rest of the chaps

but i cant really see the point of this derailing of the thread, so beyond this i wont be going off topic as this is just turning into a imature epeen contest, which your knowledge of electricity showed me how fail it was.

disconnecting derail mode, back on track ladies

sorry Dogmeat

whatever kreg i wouldent question nvidia and definetly not on their pruducts.

i would love to see your wrÃ,´s.. aspecially the ones with k1ngp1n.

- claw

[TeaLeaf]

Let's keep this on DM's graphics card please.  Moderators will be watching.

[DogMeat]

Right, this is the card in question:

• ProductInno3D Geforce GTX 260 FreezerX2
• Processor CoresGTX 260
• Graphics Clock (MHz)576
• Processor Clock (MHz)1242Mhz
• Memory Clock (MHz)2000Mhz
• Memory Amount896 Mb
• Memory Interface 448 bit
• Memory Bandwidth (GB/sec)111.9
• Texture Fill Rate (billion/sec) 36.9

                                 

• 1. A PCI-Express compliant motherboard with full size expension slot

2. 6-pin PCI Express supplementary power connector
3. Minimum 400W or greater system power supply (with 12V current rating of 25A)
[/LIST]

(my bold)

So, does this:



with 2 x 12V rails @ 25A give me 50A or what?

[kregoron]

Not entirely 50 amps, but its sufficient for the card depending on the rest of your rig ofc...

Is that your current PSU or are you looking to buy it?

[DogMeat]

It's (the first) one of the possible replacements:

http://www.eclipsecomputers.com/product.aspx?code=PSO-550FAT

http://www.overclockers.co.uk/showproduct.php?prodid=CA-031-OC

[kregoron]

if i were to choose from those two id take the ModXStream 600w

[sulky_uk]

if i were to choose from those two id take the ModXStream 600w

i Agree,
 
found this on wilki
 
"

Sometimes manufacturers inflate their power ratings, in order to gain an advantage in the market. This can be done due to a lack of clear standards regarding power supply labelling and testing. Some of the main ways employed are...[2]

• Advertising the peak power, rather than the continuous power;
• Determining the continuous output power capability at unrealistically low temperatures (at room temperature as opposed to 40Ã,°C, a more likely temperature inside a PC case);
• Advertising total power as a measure of capacity, when modern systems are almost totally reliant on the current available from the 12 volt line(s).

This may mean that if:

• PSU A has a peak rating of 550 watts at 25Ã,°C, with 25 amps (300 W) on the 12 volt line, and
  
• PSU B has a continuous rating of 450 watts at 40Ã,°C, with 33 amps (400 W) on the 12 volt line,
  

and those ratings are accurate, then PSU B would have to be considered a vastly superior unit, despite its lower overall power rating. PSU A may only be capable of delivering a fraction of its rated power under real world conditions."
just for your info

[Claw]

here is my suggestion:

http://www.overclockers.co.uk/showproduct.php?prodid=CA-186-CM

its a bit cheaper and in tests it has some good results.

in not the biggest fan of OCZ i have had 2 OCZ psuÃ,´s in my rig and they simpley couldent handle the pressure they should.

CoolerMaster has made some verry good powersuplyÃ,´s that preforms verry good and a special feature is that they are lighter than other powersuplys, so if you attempt to many lanpartyes this could be a good solution to save weight.

if i should have something other than i would go for a Tagan PSU.
but having a fat pricetag of 90+ pounds.

most power suplys tells you that there is 2 rails of 12v 25a (exsample)
make shure that this is true before you buy the psu.
in most common powersuplys comes with 1 rail of 25a and splits into 2 rails. and you will end up overheating the psu and reducing its lifetime and maybe endup with the same problem.

- claw

[kregoron]

Wattage chart of the Coolermaster PSU


Ocz modxtreme 600w

[DogMeat]

here is my suggestion:

http://www.overclockers.co.uk/showproduct.php?prodid=CA-186-CM

its a bit cheaper and in tests it has some good results.

Thanks, but that one has a lower spec (thanks, kreg)  than my current PSU:

http://www.jeantech.com/600.htm

which has 2 x 12V rails @ 19A.

[DogMeat]

OCZ Modxtreme 600W it was.  Seems to be working OK.