Can everyone help me to solve the annoying problems about games?

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only_love

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Hi Tom's hardware community,
With all my effort, I have just purchased the new system built by my own.The specification is:
Intel Core i5 2300 2.8Ghz
Asus P8H67-V
Corsair 2*2GB XMS bus 1333mhz
Asus EAH 6850 Direct CUt
PSU Corsair CX430V2
LCD Viewsonic VA2038wm-LED
The purpose of buying this system is to play the latest games in 2011. :sarcastic:
However, I have experienced some problems with the old games:
1. In StarCraft II, when i played the Campaign, several times the screen went black and then an announcement appear "No signal", although I could still listen to Mr Jimmy Raynor's speech! I had to press Restart, but after I restarted, everything became normal. :fou: Sometimes this problem happened even on Desktop Screen!
This phenomena did not appear with my old Samsung 740N, but turned up when I used the new Viewsonic one!
2. Besides losing signal, my system occasionally freezed when I played some hard games like Crysis 2, Crysis Warhead, SCII. But freeze did not happen in Dawn of War II Chaos Rising, Fifa 11, or some other slight games. :pfff:
3. Sometimes the whole screen went dark, the only left were some white lines across the screen.
(Sorry I cannot post some evidence pictures, and for my E too :D )

I have sent the GPU back to the maintenance department of the company I bought the system, but they said that it was fine, because they could play PES 2011 in 2 days without any bugs!

Can any professional give me an advice to figure out that matters? I do not want to spend a large amount of money for a buggy system!
Thanks everyone :love:
 
Solution
4745454b
I don't like those calculators, they are usually high.

You gave a good link, but didn't understand it. It said 319W OC'd, but it also said "system wattage", so that includes the CPU, board, etc. Bare system is at the very top, 127W. The 6850 has a TDP of around 130W, so it should be 257W under load. This Asus model was 272W, so its probably OC'd over stock. Another way to know its not 319W is that the 6850 has only one PCIe 6pin plug. 75W from the board and another 75W from the plug means the power draw can't be more then 150ish.

I can't remember if the 430W has 28 or 29A on its 12V rail. Either way it can do around 340W. And that is pretty close to the 319W OC'd from your Hard link. The 430W CX is a new PSU, so I'm sure it...
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only_love

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Thanks for your recommendation, but I thought that because the VGA is an Asus version, it consumes less power than the original version of AMD. I have read many reviews on this card, and also I have used some online tools to count the whole system power consumption, I feel that this PSU is ok. Moreover, the maintenance department tested my GPU with a 'no-name' PSU, which only provided actual maximum 300W when playing PES 2011 but it worked fine.I must insisted that these problem also happened in Desktop screen, when my VGA did not work too much!
 
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Wamphryi

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Actually according to this Review it uses 272 watts under load. 3 watts more than the standard AMD spec. I also note that the overclocked version (which you seem to have) hits 319 watts.

http://www.hardocp.com/article/2010/11/17/asus_eah6850_directcu_video_card_review/9

Your CPU uses 95 watts.

That comes to 367 watts and that is Non Overclock with Overclock = 414 watts. Now add in drives sound card optical drives USB etc and you run out of power. You have 14 watts left to run the rest of the system. Not going to happen.

http://www.zdnet.com/reviews/product/processors/intel-core-i5-2300-28-ghz-processor/34490616

 
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only_love

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Yessir, but I do not Overclock the card, and problem also happend on Desktop screen!
 
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Wamphryi

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According to what you said you are running a Asus EAH 6850 Direct CU. It appears it is an overclocked out of the box card which ASUS often make. Even if it wasn't, according to the maths you do not have enough power to run an i5 of that specification with a GPU that eats that much power and still have enough left to run the rest of your system. You also have to realize that a PSU is not meant to run at full wattage for hours on end it needs an overhead in reserve to ensure stability. If it is crashing without being under load it is quite possible something in your system is being damaged. When a device receives less voltage than it should it increases current to compensate. That extra current will fry various parts in your PC until it just wont boot.
 
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only_love

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Thanks you both, 4745454b and Wamphryi. I think if the
PSU cannot meet the demand of the whole system, when it is in heavy load, the power will go off. But here it does not go off, it freezes. I have asked an expert from a game magazine (of course in my country :D), he said that the suspicious lied on the Ram, because he had some similar problems when using this. After replacing a couple of ADATA Ram, his system worked smoothy. Is this same thing happening to me?
 
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only_love

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Year man, I doubt whether the new monitor or the cable of its have got any problems.
But the freeze matter, maybe it comes from other parts :??:
Oah, so many errors in a new system. So sad!
 
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Wamphryi

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It could be freezing due to the PSU being damaged. I seriously recommend that you eliminate the PSU from the equation. Do the maths on the power your various components draw and you will see you dont have enough. The manufacturer did not specify 500 watts because they snatched the figure out of the air. They know the lower the power level required the more cards they can sell so it is not in their interest to exaggerate the power requirements of their products.
 
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Wamphryi

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Well I checked out a rather handy site that allows a person to calculate power requirements. Assuming there is one HDD the figure came in at 327 Watts required. I am willing to acknowledge mistakes and I may well have made one here. However I would say that I think the problem is the PSU at this stage. Wattage may not be the problem but I suspect there is still something wrong with it. The white line across the screen could well be the GPU putting out a bad signal or the GPU RAM may be getting out of sorts. But as the GPU has been cleared that leaves the PSU as main suspect. My machine requires 488 watts according to calculations.

http://extreme.outervision.com/PSUEngine
 
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4745454b

4745454b

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I don't like those calculators, they are usually high.

You gave a good link, but didn't understand it. It said 319W OC'd, but it also said "system wattage", so that includes the CPU, board, etc. Bare system is at the very top, 127W. The 6850 has a TDP of around 130W, so it should be 257W under load. This Asus model was 272W, so its probably OC'd over stock. Another way to know its not 319W is that the 6850 has only one PCIe 6pin plug. 75W from the board and another 75W from the plug means the power draw can't be more then 150ish.

I can't remember if the 430W has 28 or 29A on its 12V rail. Either way it can do around 340W. And that is pretty close to the 319W OC'd from your Hard link. The 430W CX is a new PSU, so I'm sure it can handle the load. Maybe in 5 years when the caps have aged it will have problems.

If ram is suspected as the issue, I'd double check the ram like I suggested. Make sure its in tight, and the settings are correct.
 
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only_love

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Yessir, i will ask the maintenance department to check the ram. Though, I must reckon that the Asus 6850 Direct CU version I bought have 2 PCIe 6 pin plug. Even that, I think its power consumption may be still no more than the figure you gave here.
 
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only_love

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Ok, now coming back to the problem of Ram, i have asked the company to change another couple Ram, but they said they ran out of stock for DDR3 1333 Mhz, and offerd me an alternative of Kit Dual Kingmax 2*2Gb, but bus 1600 Mhz. I wonder how they can work on my mainboard, which is Asus p8H67-v and only support bus 1066/1333 Mhz. If they can work, is there any further conflict of hardware in the future? I do not want to go back to the maintenance department once again! :??:
 
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only_love

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Today they replaced the Ram couple to a Kingmax Kit. I hope everything will be ok. But just in case problem still occurs, I guess the errors should come from the mainboard :??:
 
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