Video card not powering on

[antoniu200]

I send it to a better service and it just pushed the video card deeper into the PCI-Express. Can you believe that?

[DaveLembke]

So the problem was that the video card wasnt seated all the way and its fixed now?

[antoniu200]

It is fixed and it works like a charm! 

[Geek-9pm]

Try a known good power supply from a reputable brand - Your "floston" one is a cheap generic unit that will not be able to provide the full 500w that it is rated for.

Camerongray, m Lots of people read this. Do you have some proof that a generic  500  watt supply is not enough power for that video card?

[BC_Programmer]

Camerongray, m Lots of people read this. Do you have some proof that a generic  500  watt supply is not enough power for that video card?

here is a list of power supplies which were found to fail. They are all generic, cheap Power supply brands:

http://www.johnnylucky.org/power-supplies/psu-lemon-list.html

Notice in particular that many power supplies in the list were unable to deliver the power wattage for which they were rated, failing at 300 Watts, for example, when rated for delivery of 500 Watts. These power supplies also have a lot of power ripple and were excessively tolerant of out-of-spec power delivery during brownout scenarios.

Additionally, they tend to degrade faster, due to using lower quality Capacitors. which fail much sooner or for which they have a much more restrictive temperature rating than is typical inside a power supply.

For the most part the reason that Cheap, Generic Power supplies are low quality is the same reason the cheap generic version of anything (Except most foods, I guess) tends to be poor quality, which is simply that they are built down to a price. Cheaper capacitors tend to be a given for cheap, generic versions of electronics. Crappy inductor loops, wiring the PWR_GOOD signal directly to the 5V output rail instead of having discrete logic, etc.

Here is a compilation of short clips, created by CPC hardware labs, where some generic power supplies are tested and which demonstrably fail in every instance. Only 2 of the sampled 14 actually delivered the power they were rated for.

https://www.youtube.com/watch?v=f6snWfd1v7M

[camerongray]

Camerongray, m Lots of people read this. Do you have some proof that a generic  500  watt supply is not enough power for that video card?

Look up tests of generic PSUs from places like JohnnyGuru.  They almost never can output their rated wattage (a generic 500w is lucky to provide 250w consistently) and when they fail they don't have appropriate protection circuitry so they risk taking out other components with them.

For example, look at the power rating on the 12v rail of the generic unit vs that of a high quality modern one.  Most of the power in a modern PC, including the video card is on the 12v rail so this is the most important one.  That Floston can provide only 216w on it's 12v rail (and that's assuming that is a genuine reading, the actual value is likely lower), on the other hand a 550w XFX TS can provide 12v up to 528w and a Corsair RM550 can provide a full 550w on it's 12v rail.

If you look at a GTX980, it is rated to pull 165w from the 12v rail, factor in a reasonable CPU at 65w and you are already over the 12v rail rating on that PSU, and that's not even factoring in any drives or other parts in the system that run off of 12v.

With PSUs you should expect to pay $10 for every 100w it's rated for (excluding sale prices) - If it's significantly lower you have to wonder where the money is being saved from.

[Geek-9pm]

Thanks Camerongray.
That clarifies what you are talking about.
Most modern PSUs should have two or more exasperate 12 volt regulators. One for the motherboard and bother for a graphics card.
Thee is a limit of about 125 watts  on a 12 volt line because of original documented design standards. So to get more power there has t o be a separate 12V thing inside the PSU that is independent of the others.

My point is that it is more than  just the name of the PSU. You have to find out what it really is. A PSU can be called a 5pp watt unit if it can deliver a total of 500 watts. But taht might mean only 125 watts on the 12 volt line.

Better quality 500 watt PSU can deliver a total power well above the 500 watt rating.  Often near 600 watts.

[antoniu200]

Well, now that I bought a AMD Athlon 750K that needs 100W, the PSU is not very hot. 400W+100W+5W (RAM) +~10W? (HDD) +5W?(DVD/CD writer)= 520W. The power supply is fine and the thread is solved from maybe August. Calm down, guys.