I recently built my own PC and during games the screen goes black and PC buzzes

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Garan Thomas

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Dec 25, 2013
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Hey I recently built my own PC. Here are the specs:
PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i7-4770K 3.5GHz Quad-Core Processor (£245.98 @ Scan.co.uk)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler (£23.90 @ Ebuyer)
Thermal Compound: Arctic Silver Ceramique 2 Tri-Linear 2.7g Thermal Paste (£6.60 @ Amazon UK)
Motherboard: MSI Z87-G45 Gaming ATX LGA1150 Motherboard (£107.84 @ Scan.co.uk)
Memory: Patriot Intel Extreme Master, Limited Ed 16GB (2 x 8GB) DDR3-1600 Memory (£129.30 @ CCL Computers)
Storage: Kingston HyperX 3K 120GB 2.5" Solid State Disk (£70.79 @ Amazon UK)
Storage: Seagate Barracuda 3TB 3.5" 7200RPM Internal Hard Drive (£81.59 @ Aria PC)
Video Card: Asus GeForce GTX 770 2GB Video Card (2-Way SLI) (£255.00 @ Amazon UK)
Video Card: Asus GeForce GTX 770 2GB Video Card (2-Way SLI) (£255.00 @ Amazon UK)
Case: Thermaltake Level 10 GTS Snow Edition (White) ATX Mid Tower Case (£82.00 @ Amazon UK)
Case Fan: Cooler Master R4-L2R-20AC-GP 69.0 CFM 120mm Fan (£5.22 @ Aria PC)
Case Fan: Cooler Master R4-L2R-20AC-GP 69.0 CFM 120mm Fan (£5.22 @ Aria PC)
Case Fan: Antec Two Cool 140 Blue 33.6 CFM 140mm Fan (£12.26 @ Overclockers.co.uk)
Power Supply: Corsair Builder 750W 80+ Bronze Certified ATX Power Supply (£67.32 @ CCL Computers)
Optical Drive: Samsung SH-222BB/BEBE DVD/CD Writer
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) (£70.30 @ CCL Computers)
Other: Mains Cable/ Lead/ Power Cable 1.5m UK (£1.90)
Total: £1420.22
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-12-27 23:38 GMT+0000)


Here is the DxDiag Pastebin (http://pastebin.com/4DV8KYVm)

My problem is during some games at random the screen will go black and I will hear a buzzing sound of about 1ms of the last sound on the PC. I have checked my drivers and I have checked my GPUs are seating in the PCI-E correctly I checked it is receiving power so im all out of ideas, I need this fixed asap so can anyone help please?
 
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Brantyn Gerik

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Sep 18, 2013
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Well, my suggestion is to start trying only one gpu at a time to see if it is a specific gpu causing problems. If each works perfectly on their own, then it is a problem with either sli drivers, or your power supply (It should be a good enough one, but you never know if you may have gotten a defective unit or not)
 
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Garan Thomas

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Dec 25, 2013
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It works with one of them I know, would the problem be that the PSU is not powerful enough to run both? 750W should be enough right? PC part picker says the estimated wattage is 682W. If it is a problem with the SLI drivers how do I fix it?
 
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Brantyn Gerik

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750 SHOULD be enough, but that is assuming you have a good power supply. Corsair is a good brand, but their builder series is slightly lower quality. Try the one that is NOT the one you know for sure has no problems. If both cards are found to be in fully working order on their own, then make sure the sli bridge is installed correctly, then drivers up to date, and if still not working, the most likely culprit is your psu
 
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Brantyn Gerik

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Typically i have been taught to overshoot your power needs by a magnitude of about 30%, so for your system, i personally would have bought a mid line corsair 800-850 watt power supply instead of the lowest quality one they have that is rated for roughly 12% more than what you will be using under load
 
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Garan Thomas

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Dec 25, 2013
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Would corsair replace the PSU if it is faulty I mean its under warranty and such.
 
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Brantyn Gerik

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Eh they probably won't especially since it works with just one card. Sadly you just kinda bought a power supply that isn't rated to sli two high end cards like that. You could call and ask, basically say that your pc is using less than 750 watts, and the power supply has been proven to be the problem, and see if they will take it back or send you a new one
 
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Brantyn Gerik

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Sep 18, 2013
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If you do plan on calling, tell them you used a friends Corsair 750 cm builder series power supply and it worked with his, but not yours. It may be a lie, but it will be more likely to either get you a new psu, or a repair on yours.

The more likely thing is that you just simply bought a psu that isnt good enough (no need to be ashamed of that though, as it is actually the most common problem i'm seeing people have on this site so far)
 
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Garan Thomas

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Dec 25, 2013
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So chances are it is my PSU? I didnt know I would dual SLI when I bought the PSU, would they refund or offer me a change in the PSU they send back?
 
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Garan Thomas

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Dec 25, 2013
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So what would you say it is? Im guessing the PSU. I cant afford a new one so I have no options, great.
 
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Brantyn Gerik

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My opinion would be the psu, I would suggest just using one card until such a time as you can afford to buy a slightly better one. Sorry :(

BUT I may not be 100% right, and maybe you could try using a different sli bridge. If you know someone who has bought a motherboard recently, but not used dual cards, they may have one lying around you could borrow or buy from them for like $5?

Like i said, try all the options you can before concluding you have to buy a new power supply (test each card individually)
 
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Garan Thomas

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Dec 25, 2013
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Okay I'm running with the other card in and its fine, so both cards are in fully working order. The SLI bridge I dont think is the problem, how do I check my drivers arent the issue before I go into debt with the PSU

 
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Garan Thomas

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Dec 25, 2013
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That was my guess, I knew I'd be close to the limit with dual SLI but was hoping it wouldnt be too much. It runs fine on each card separately but with both in SLI it does not work for very long. Whats a good power supply you can recommend for hopefully under £120 that will run the two and my specs with no issues? I can only see some for like £200 + and I just cant afford that.
 
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Garan Thomas

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Dec 25, 2013
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I cant seem to find a HX 1000W in the UK amazon or scan stores, any other good ones from corsair or known good brands that will be 1000W and will work with my build?
 
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Brantyn Gerik

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Sep 18, 2013
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The rosewill fall into the teir three series because they make a lot of those lower end power supplies for pre-built systems. Their actual units that are in the same price range (80eu) are all just fine for what he is looking for.

So tell people how much you are willing to spend for a new psu, and you will probably get a bunch of people that will send you links to the best one you can get for your money and your power usage needs
 
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chrisso

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Nov 17, 2013
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can you turn the ram voltage up a teeny weeny bit ? My gut says it is crashing because the voltage drop under load is causing the memory to crash. My old system does the same if i leave the ram at standard volts.
I know this isnt advisable with intel chips, so perhaps you could run a less agressive ram profile? Like, try it at 1333 meg sttings? If it works it would give you indeffinite time to save for a better psu.
 
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