TwoCables

Until I read the post below, I started suspecting the PSU. After all, it's just an "Asus 450". However, I have learned that the Corsair VX450W has absolutely no problem powering a GTX 260 and an overclocked B3 Q6600. The VX450W has a +12V rating of 33A, and the GTX 260's claimed power requirements are a 500W PSU with a +12V rating of 36A. They always bloat the power requirements.
Well, you might "fry" it if you left it at like 1.6V (according to CPU-Z, or rather, "after vdrop") for daily use. But all you did was leave it like that for a little bit. And there are many people who use such extremes for benchmarks, suicide runs, and really crazy CPU-Z validations.

However, do you have the Thermal Monitor/Thermal Control thing enabled in the BIOS? If so, then the CPU would have shut itself off to prevent any serious damage due to overheating. And so if it's enabled, then it certainly didn't reach the Tj. Max, so we must be right that the Tj. Max is about 80°C.

Anyway, it looks like you're doing really well with what you got. I may not know the E6850, but that VID of 1.3500V is probably really high. After all, people say that a VID of 1.32500V is really high for a Q6600.

But hey, I guess it could be worse. Besides, the system seems to be handling the 1T Command Rate pretty well, so that's a huge plus.

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ghulam_phantom

yes..gladly..

About the PSU..i went for that extreme power calculators and @ worse like with 30% worn out capacitance selected..i have a max of 390 watts..im not really using any peripherals here and i did alot more research about the PSU with my card and...it just felt OK with me to keep running on this PSU until i read your notice in an OVERCLOCKING forums haha..so really..increasing the voltages for ram and cpu..would that really matter? im feeling insecure at the moment though :S

because I'm getting some artifacts with ati tool even with my stock settings in the GPU..not sure whats wrong..the fur ball gets artifacts and whenever i try to notch the clocks the screen blacks out and colors like RED BLUE GREEN appear second after second..full screen..games run perfect but still..how come with stock settings..this card shows artifacts on ATI tool...

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Phantom.X

Psycho Homer

I have the same board as use. I just likes to screw with your volts all day. Kinda annoying but it seems to work good for me.

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FieryCoD

If you're getting artifacts at stock, it looks like it's time for you to get an RMA. It should not artifact at stock (or the rated speed that it comes in, fully working) So work out an RMA with the GPU company.

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TwoCables

Do you know what the specifications are for this PSU? More specifically, we need to know this PSU's +12V amperage rating. If it has multiple +12V rails, then the total maximum wattage on the +12V rail must be divided by 12. But, if it has a single +12V rail, then all we have to do is go by the amperage rating for that rail.

You see, again, the GTX 260's claimed minimum power requirements are a 500W PSU with a +12V rating of 36A. But remember, the Corsair VX450W can handle it without a problem, and its +12V rating is 33A.

But yeah, overclocking the CPU can make a significant difference. According to the eXtreme Power Supply Calculator, the overclocked CPU wattage for my CPU's overclock is about 103W. But my CPU's Thermal Design Power is 65W.

Anyway, let's find out the specifications on this Asus PSU first!

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ghulam_phantom

Can you please help me out with this http://www.overclock.net/nvidia/5335...ml#post6592642

This is the PSU im using..http://www.asus.com/product.aspx?P_ID=Q6ENYFC6LFuZW9WY

But i Must say that..there were some forums that showed Truth about power consumption of these cards and they showed the very limits of the amperage and wattage of the cards..and frankly i used 8800gts before this card and that required more power..this gts i read consumes 132 watts in real..and 132/ 12 = lets say 12..this PSU has 19 amperage in its rails..14+15 that is..so by that assumed it safe to keep this one..

EDIT: By the way..i should mention that with your help..with my stock speeds..my WinRAR benchmarking was 780 hahaha..right now its 1300.. ^^ so truly..its an apparent change..almost a double..

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Phantom.X

TwoCables

Again, the GTX 260's power requirements state that it should have at least a 500W PSU with a +12V rating of 36A. But this Asus PSU has 168W on +12V1, and 180W on +12V2. That means it has 348W maximum output on the +12V rail. Therefore, to figure out the +12V amperage rating, you have to divide 348 by 12. That comes out to only 29A on the +12V, and so that's the problem: it's just barely enough. That's why it's artifacting.

So, this PSU is not 100% sufficient.

But remember when I said a couple of posts ago that the Corsair VX450W was powering a rig with the B3 Q6600 and the GTX 260, and is now powering more than that, and it's even powering the 4870? Here's the proof:
The rig he is referring to is Project: σrangє™. It's now powering a G0 Q6600 with a 1GB 4870 among a few additional things that he added later, and the PSU is still going strong. This is to show the difference between a top-of-the-line PSU and a mid-range, not-so-top-of-the-line PSU. Both PSUs have a 450W rating, however, the Corsair is having no problems powering the rig because it's just that good. But unfortunately, this Asus isn't as powerful as the Corsair. Either it's the 4A difference in the +12V rating, or it's that the VX450W has a single +12V rail. Actually, I'm willing to bet that it's both. But I don't think it's just that: I think it's also the quality of the PSU, and the parts used to make the PSU.

Anyway, the whole point is that I personally think the Asus PSU is just barely enough, and that it's the culprit.

Oh, and I don't have any idea of what a WinRAR benchmark is. I didn't know there was such a thing.

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ghulam_phantom

well if its certain that low power PSUs causes artifacts then i might consider that a possibility but..let me show you something


Source:http://www.xbitlabs.com/articles/vid..._12.html#sect0

I read tons of forums showing that the truth about graphic cards is that it does not consume the power thats written on top of it..
and i also ran that OCCT POWERSUPPLY torture test on my computer..when it runs every PU at 100% and it ran without a problem..i mean i could see that 3d groove torturing the GPU but..no artifacts at that time..i'm just wondering if its really the PSU thats causing this problem..or maybe the overclock..because ive been noticing little problems with my graphics lately..infact it runs stable on the orthos..

If you have knowledge about riva tuner..can u tell me all the driver contents have the same version?

i'm using 177.41..but i faced some problem with the driver instalation when it always crashed in finalizing..so i wonder if these are causing some problem..can you check yours if all have the same version..or just these three have old versions in every card driver..

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Phantom.X

TwoCables

Well, I'm still not 100% sure if the PSU is the culprit, however, I still can't deny the facts that I discovered in my previous reply.

Now, are you sure you're using 177.41? Open up the NVIDIA Control Panel, and then click System Information on the bottom-left. It shows the driver version there. Alternatively, open the Help menu, then choose "System Information".

Regarding RivaTuner: I don't have it, but looks like it might be normal for those files to have individual version numbers.

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ghulam_phantom

I just checked my system information like you said and i find that the version it shows is 177.41 and in the components tab all the DLLs are 177.41 except for the last two "NVIDIA CONTROL PANEL CONTAINER"

• nvCplUI.exe - nVidia Control Panel
• nvCpl.cpl - nVidia control panel Applet

their version is mentioned as "2.2.220.05"

All Others are as "6.14.11.7741"

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Phantom.X