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Having trouble with my 8800 gtx, might be the power supply?

post #1 of 35
Thread Starter 
So the other day I walked into my room and my screen was a blank but everything was running. My power supply is about 2 years old but everything was on, you can see my computer specs below.

Well I switched everything out with my friend's hardware and everything works fine. So today I bought a 600W power supply, my other one was a 650W.

So here is my dilemma, My video card starts, but still nothing shows up on the screen. When we switched everything out, we put a lower wattage power supply in with a different video card and it worked. We couldn't try the 8800 gtx on a different computer because no other power supply had two PCI connectors.

Also, my other dilemma is that, when I put my old video card in later today(7800 gtx), if that works does that mean my 8800 gtx is broken, or does it mean that my new power supply just isn't putting enough power out to run the 8800gtx-might sound confusing but it's really not. The new power supply is an Ultra V-Series 600 Watt PSU ULT33133.

Thank you!
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Otis
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post #2 of 35
Rma the card?
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post #3 of 35
Thread Starter 
But that doesn't help me, I'm not going to send it back if nothing is wrong. It's kind of like I'm stuck because I don't have hardware to test it out on another computer.
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post #4 of 35
That power supply isn't really a "600 watt" PSU.

At best it is a 420W powersupply, but more realistically it can supply 360W.

Your 8800GTX may be fine, it is just the PSU that isn't.

If you are willing to pay more than $500 for a video card, you need to pocket a little bit more for a PSU. Remember, the PSU is the lifeline of your system. A poor quality PSU can absolutely destroy your system with high ripple over time.
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post #5 of 35
Thread Starter 
That is what I'm thinking. because my other power supply which was a:

SIlverstone/ SST-ST65ZF/ 650-Watt/ ATX/Dual 80mm Fan/ SATA-Ready/ PCI-E-Ready/ QUad 12V/ 20/24-Pin/ Power Supply/ SLI Ready.


And that ran it fine for a month, then the other day it just wasn't working, but the machine was on and everything was running.
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post #6 of 35
Thread Starter 
So would a PC Power and cooling PSU help then?
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Otis
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post #7 of 35
Quote:
Originally Posted by mikeguy3086 View Post
That is what I'm thinking. because my other power supply which was a:

SIlverstone/ SST-ST65ZF/ 650-Watt/ ATX/Dual 80mm Fan/ SATA-Ready/ PCI-E-Ready/ QUad 12V/ 20/24-Pin/ Power Supply/ SLI Ready.


And that ran it fine for a month, then the other day it just wasn't working, but the machine was on and everything was running.
That issue where everything boots up, but nothing appears on the monitor has happened to me quite a few times recently. I have never really been able to pin what causes it, but I am pretty sure it is northbridge / BIOS related.

Have you tested your Silverstone PSU out on another system? I don't think there is anything wrong your SST-ST65ZF.

Here is what you need to do:

Test the SST-ST65ZF on another computer, does it work?

Test the memory on another computer, does it work?

Test the videocard on another computer (you said you can't), so test another videocard on your computer, does it work?

I am thinking that your videocard and PSU are probably fine. But can you answer these questions for me?
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post #8 of 35
Quote:
Originally Posted by mikeguy3086 View Post
So would a PC Power and cooling PSU help then?
As long as your Silverstone works (which I suspect it does) it is just fine. You don't need a PC Power and Cooling.

If you do find out your PSU is fried, I am sure Silverstone will replace it for you.
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post #9 of 35
Quote:
Originally Posted by pauldovi View Post
That power supply isn't really a "600 watt" PSU.

At best it is a 420W powersupply, but more realistically it can supply 360W.

Your 8800GTX may be fine, it is just the PSU that isn't.

If you are willing to pay more than $500 for a video card, you need to pocket a little bit more for a PSU. Remember, the PSU is the lifeline of your system. A poor quality PSU can absolutely destroy your system with high ripple over time.
Very well said.

Start by getting a good PSU before getting a good graphics card. You already have the card so then you need a good PSU. I also have the Silverstone Zeus 650w and has proven to be a great PSU. I'd do what Pauldovi mentioned and try your components on a different computer to see if they work. No sense in buying another PSU when you might just need to RMA your current one.
    
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post #10 of 35
Thread Starter 
I haven't tried the old power supply on another computer, but I will in the next hour. The memory is fine, the cpu is fine, and the motherboard is fine because we booted it up with an older videocard and it worked. We cant even get into the bios. I will have you guys know though that, on my video card I replaced the thermal pads with arctic silver 5, which did nothing but worked awesome. I also replaced the thermal pads on the north and south bridge with arctic silver 5 too.

Everything worked for a month though. And power is still getting to the motherboard. It's just like my computer is a vegetable.
Otis
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Otis
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