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Newly installed 780 causing my computer to boot to black screen w/ B2

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June 6, 2013 8:22:16 PM

I installed a new MSI Nvidia Geforce GTX 780 into my MSI Z68MA-G45 motherboard today. However, every time I boot my computer, my motherboard will do the regular "all clear" beep, but then display a black screen with a white text underscore at the top left corner and a "B2" at the bottom right corner. This screen will stay there for upward 2-5 minutes. During this time, every 20-30 seconds, my motherboard will produce a short beep. Finally, the windows splash logo comes up and it will boot into windows. In this process, however, it seems to be skipping the POST, because I cannot access my bios. If I attempt to access my BIOS by spamming delete until the black screen with B2 ends, my computer will just display a black screen and do nothing else.

I have scoured the internet trying to find help for this problem but nobody seems to have it resolved. Please help!


Computer Specifications:

    Windows 7 Home Premium 64-bit OEM
    MSI P67A-GD65 (B3) LGA 1155 Intel P67 SATA 6Gb/s USB 3.0 ATX Intel Motherboard
    Intel Core i7-2600 Sandy Bridge 3.4GHz (3.8GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor Intel HD Graphics 2000 BX80623I72600
    ADATA XPG Plus Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model AXDU1333PC4G8-2P
    Seagate Barracuda ST31000524AS 1TB 7200 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
    MSI N780-3GD5 GeForce GTX 780 3GB 384-bit GDDR5 PCI Express 3.0 SLI Support Video Card
    RAIDMAX HYBRID 2 RX-630SS 630W ATX12V V2.2/ EPS12V SLI Ready CrossFire Ready Modular Power Supply, New Version with Build-in LED Fan On/Off Switch
a c 171 V Motherboard
June 6, 2013 8:33:19 PM

Power supply EXACT model?
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a c 171 V Motherboard
June 6, 2013 8:38:16 PM

Yeah, there is a reason that PSU is so damn cheap. Your PSU is the issue. And even if it is not, at least you get a reliable unit when you replace it and you won't run the risk of destroying your PC with that thing.

Sorry, bad news I know. But NEVER cheap out on a PSU. NEVER...
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June 6, 2013 8:39:26 PM

Novuake said:
Yeah, there is a reason that PSU is so damn cheap. Your PSU is the issue. And even if it is not, at least you get a reliable unit when you replace it and you won't run the risk of destroying your PC with that thing.

Sorry, bad news I know. But NEVER cheap out on a PSU. NEVER...


How much should I be paying for a PSU? And even if I did buy a new PSU, what if I still have this problem?
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a c 171 V Motherboard
June 6, 2013 8:42:20 PM

screamoluvr said:
Novuake said:
Yeah, there is a reason that PSU is so damn cheap. Your PSU is the issue. And even if it is not, at least you get a reliable unit when you replace it and you won't run the risk of destroying your PC with that thing.

Sorry, bad news I know. But NEVER cheap out on a PSU. NEVER...


How much should I be paying for a PSU? And even if I did buy a new PSU, what if I still have this problem?


Start at the most likely point, right now, its your PSU.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

There is a good option.
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June 6, 2013 8:46:49 PM

Novuake said:
screamoluvr said:
Novuake said:
Yeah, there is a reason that PSU is so damn cheap. Your PSU is the issue. And even if it is not, at least you get a reliable unit when you replace it and you won't run the risk of destroying your PC with that thing.

Sorry, bad news I know. But NEVER cheap out on a PSU. NEVER...


How much should I be paying for a PSU? And even if I did buy a new PSU, what if I still have this problem?


Start at the most likely point, right now, its your PSU.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

There is a good option.


Is there anything else I can do to make absolutely certain it's the power supply? I don't really have the money to just drop 90 bucks on a new one...
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a c 171 V Motherboard
June 6, 2013 8:50:41 PM

screamoluvr said:

Is there anything else I can do to make absolutely certain it's the power supply? I don't really have the money to just drop 90 bucks on a new one...


Not without trying a known trusted unit.
Consider that a new PSU is an investment to keep your system SAFE.
But I am 90% sure it will solve your issue.

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a c 171 V Motherboard
June 6, 2013 8:58:55 PM

screamoluvr said:
bigcyco1 said:
Yes you're power supply is Tier 5 - worst of the worst,NOT RECOMMENDED. Replace ASAP if you have one. Source: http://www.eggxpert.com/forums/thread/323050.aspx

Wow, I had no idea that was a thing. I thinking of buying a new motherboard soon too, is there a tier list for that sort of thing? (this is the motherboard I had in mind : http://www.newegg.com/Product/Product.aspx?Item=N82E16813128546)


Why do you want a new mobo? Yours is fine and so is that one you have chosen. There is not really a tiered system for mobos.
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June 6, 2013 9:06:27 PM

Novuake said:
screamoluvr said:
bigcyco1 said:
Yes you're power supply is Tier 5 - worst of the worst,NOT RECOMMENDED. Replace ASAP if you have one. Source: http://www.eggxpert.com/forums/thread/323050.aspx

Wow, I had no idea that was a thing. I thinking of buying a new motherboard soon too, is there a tier list for that sort of thing? (this is the motherboard I had in mind : http://www.newegg.com/Product/Product.aspx?Item=N82E16813128546)


Why do you want a new mobo? Yours is fine and so is that one you have chosen. There is not really a tiered system for mobos.


My mobo is very small and quite out of expansion space. Plus I really want an optical out so I can use my Astros with surround sound
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a c 171 V Motherboard
June 6, 2013 9:08:17 PM

screamoluvr said:
Novuake said:
screamoluvr said:
bigcyco1 said:
Yes you're power supply is Tier 5 - worst of the worst,NOT RECOMMENDED. Replace ASAP if you have one. Source: http://www.eggxpert.com/forums/thread/323050.aspx

Wow, I had no idea that was a thing. I thinking of buying a new motherboard soon too, is there a tier list for that sort of thing? (this is the motherboard I had in mind : http://www.newegg.com/Product/Product.aspx?Item=N82E16813128546)


Why do you want a new mobo? Yours is fine and so is that one you have chosen. There is not really a tiered system for mobos.


My mobo is very small and quite out of expansion space. Plus I really want an optical out so I can use my Astros with surround sound


Thats a decent board.
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June 6, 2013 9:12:02 PM

Novuake said:
screamoluvr said:
Novuake said:
screamoluvr said:
bigcyco1 said:
Yes you're power supply is Tier 5 - worst of the worst,NOT RECOMMENDED. Replace ASAP if you have one. Source: http://www.eggxpert.com/forums/thread/323050.aspx

Wow, I had no idea that was a thing. I thinking of buying a new motherboard soon too, is there a tier list for that sort of thing? (this is the motherboard I had in mind : http://www.newegg.com/Product/Product.aspx?Item=N82E16813128546)


Why do you want a new mobo? Yours is fine and so is that one you have chosen. There is not really a tiered system for mobos.


My mobo is very small and quite out of expansion space. Plus I really want an optical out so I can use my Astros with surround sound


Thats a decent board.


Alright, thank you :)  I also noticed this new line of motherboards with the Z87 chipset has come out alongside this "haswell" processor line. Should I go ahead and pay the extra money to make the jump, or will my 2nd gen i7 be good for a few more years to come?
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a c 171 V Motherboard
June 6, 2013 9:14:15 PM

screamoluvr said:
Novuake said:
screamoluvr said:
Novuake said:
screamoluvr said:
bigcyco1 said:
Yes you're power supply is Tier 5 - worst of the worst,NOT RECOMMENDED. Replace ASAP if you have one. Source: http://www.eggxpert.com/forums/thread/323050.aspx

Wow, I had no idea that was a thing. I thinking of buying a new motherboard soon too, is there a tier list for that sort of thing? (this is the motherboard I had in mind : http://www.newegg.com/Product/Product.aspx?Item=N82E16813128546)


Why do you want a new mobo? Yours is fine and so is that one you have chosen. There is not really a tiered system for mobos.


My mobo is very small and quite out of expansion space. Plus I really want an optical out so I can use my Astros with surround sound


Thats a decent board.


Alright, thank you :)  I also noticed this new line of motherboards with the Z87 chipset has come out alongside this "haswell" processor line. Should I go ahead and pay the extra money to make the jump, or will my 2nd gen i7 be good for a few more years to come?


Uhm, if you had the K version I would definitely say DONT. But since you don't. Its an option. But not yet... Give it a while. Maybe Ivy Bridge-E has a nice offer.
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June 6, 2013 9:17:10 PM

Novuake said:
screamoluvr said:
Novuake said:
screamoluvr said:
Novuake said:
screamoluvr said:
bigcyco1 said:
Yes you're power supply is Tier 5 - worst of the worst,NOT RECOMMENDED. Replace ASAP if you have one. Source: http://www.eggxpert.com/forums/thread/323050.aspx

Wow, I had no idea that was a thing. I thinking of buying a new motherboard soon too, is there a tier list for that sort of thing? (this is the motherboard I had in mind : http://www.newegg.com/Product/Product.aspx?Item=N82E16813128546)


Why do you want a new mobo? Yours is fine and so is that one you have chosen. There is not really a tiered system for mobos.


My mobo is very small and quite out of expansion space. Plus I really want an optical out so I can use my Astros with surround sound


Thats a decent board.


Alright, thank you :)  I also noticed this new line of motherboards with the Z87 chipset has come out alongside this "haswell" processor line. Should I go ahead and pay the extra money to make the jump, or will my 2nd gen i7 be good for a few more years to come?


Uhm, if you had the K version I would definitely say DONT. But since you don't. Its an option. But not yet... Give it a while. Maybe Ivy Bridge-E has a nice offer.


Would an Ivy Bridge-E have a possibility of fitting into LGA 1155?
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a c 171 V Motherboard
June 6, 2013 9:19:02 PM

screamoluvr said:

Would an Ivy Bridge-E have a possibility of fitting into LGA 1155?


Nope, but neither can Haswell. :D  Haswell is socket 1150.

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a c 87 V Motherboard
June 6, 2013 9:22:44 PM

screamoluvr said:
bigcyco1 said:
Yes you're power supply is Tier 5 - worst of the worst,NOT RECOMMENDED. Replace ASAP if you have one. Source: http://www.eggxpert.com/forums/thread/323050.aspx

Wow, I had no idea that was a thing. I thinking of buying a new motherboard soon too, is there a tier list for that sort of thing? (this is the motherboard I had in mind : http://www.newegg.com/Product/Product.aspx?Item=N82E16813128546)
No there is not but that is a good motherboard you're looking at i did a few builds with it nobody has complain to me so far.

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a c 462 V Motherboard
June 6, 2013 9:37:12 PM

Have you pulled the gpu and flashed the mb bios?? A lot of the x68 and x77 chipset needed bios updates to fix gpu post hangs or black screens.
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June 6, 2013 9:40:54 PM

Thanks guys. I'll order a new power supply and motherboard and get back in a week or so with the results.
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June 6, 2013 9:43:29 PM

smorizio said:
Have you pulled the gpu and flashed the mb bios?? A lot of the x68 and x77 chipset needed bios updates to fix gpu post hangs or black screens.

How do I do that?

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a c 171 V Motherboard
June 6, 2013 9:45:19 PM

smorizio said:
Have you pulled the gpu and flashed the mb bios?? A lot of the x68 and x77 chipset needed bios updates to fix gpu post hangs or black screens.


P68 = no integrated GPU. So you can do this with your old card.
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June 7, 2013 6:12:20 AM

Novuake said:
smorizio said:
Have you pulled the gpu and flashed the mb bios?? A lot of the x68 and x77 chipset needed bios updates to fix gpu post hangs or black screens.


P68 = no integrated GPU. So you can do this with your old card.

Ehh I sort of already sold my old card...
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a c 171 V Motherboard
June 7, 2013 9:17:34 AM

screamoluvr said:
Novuake said:
smorizio said:
Have you pulled the gpu and flashed the mb bios?? A lot of the x68 and x77 chipset needed bios updates to fix gpu post hangs or black screens.


P68 = no integrated GPU. So you can do this with your old card.

Ehh I sort of already sold my old card...


LOL then you only have the PSU option.
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June 17, 2013 11:25:57 AM

The PSU didn't help. I bought the exact one you listed, Novuake, and I still have the same problem. What do I do now?
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a c 462 V Motherboard
June 17, 2013 12:35:30 PM

BorrOw and older gpu. Download from your mb vendor the newest bios file and put it on a USB stick. Inside the mb bios is a bios update screen. Run it and update your bios.
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June 17, 2013 5:07:46 PM

smorizio said:
BorrOw and older gpu. Download from your mb vendor the newest bios file and put it on a USB stick. Inside the mb bios is a bios update screen. Run it and update your bios.


Could I just take out my GPU? I can still see the display, even if I don't have a GPU in.
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a c 462 V Motherboard
June 17, 2013 8:40:01 PM

You can Do that too. Thought you dd not have onboard gpu.
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June 17, 2013 8:47:21 PM

smorizio said:
You can Do that too. Thought you dd not have onboard gpu.

I think my cpu defaults as the displayer when no GPU is in there. Idc if it's that or black magic, cause either way, it works :p 
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Best solution

July 3, 2013 2:11:46 PM

screamoluvr said:
I installed a new MSI Nvidia Geforce GTX 780 into my MSI Z68MA-G45 motherboard today. However, every time I boot my computer, my motherboard will do the regular "all clear" beep, but then display a black screen with a white text underscore at the top left corner and a "B2" at the bottom right corner. This screen will stay there for upward 2-5 minutes. During this time, every 20-30 seconds, my motherboard will produce a short beep. Finally, the windows splash logo comes up and it will boot into windows. In this process, however, it seems to be skipping the POST, because I cannot access my bios. If I attempt to access my BIOS by spamming delete until the black screen with B2 ends, my computer will just display a black screen and do nothing else.

I have scoured the internet trying to find help for this problem but nobody seems to have it resolved. Please help!


Computer Specifications:

    Windows 7 Home Premium 64-bit OEM
    MSI P67A-GD65 (B3) LGA 1155 Intel P67 SATA 6Gb/s USB 3.0 ATX Intel Motherboard
    Intel Core i7-2600 Sandy Bridge 3.4GHz (3.8GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor Intel HD Graphics 2000 BX80623I72600
    ADATA XPG Plus Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model AXDU1333PC4G8-2P
    Seagate Barracuda ST31000524AS 1TB 7200 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
    MSI N780-3GD5 GeForce GTX 780 3GB 384-bit GDDR5 PCI Express 3.0 SLI Support Video Card
    RAIDMAX HYBRID 2 RX-630SS 630W ATX12V V2.2/ EPS12V SLI Ready CrossFire Ready Modular Power Supply, New Version with Build-in LED Fan On/Off Switch

The solution is not psu, or the hdd. You need to update your bios. I have encounterd this exact problem.
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September 14, 2013 2:42:03 AM

kertis said:
screamoluvr said:
I installed a new MSI Nvidia Geforce GTX 780 into my MSI Z68MA-G45 motherboard today. However, every time I boot my computer, my motherboard will do the regular "all clear" beep, but then display a black screen with a white text underscore at the top left corner and a "B2" at the bottom right corner. This screen will stay there for upward 2-5 minutes. During this time, every 20-30 seconds, my motherboard will produce a short beep. Finally, the windows splash logo comes up and it will boot into windows. In this process, however, it seems to be skipping the POST, because I cannot access my bios. If I attempt to access my BIOS by spamming delete until the black screen with B2 ends, my computer will just display a black screen and do nothing else.

I have scoured the internet trying to find help for this problem but nobody seems to have it resolved. Please help!


Computer Specifications:

    Windows 7 Home Premium 64-bit OEM
    MSI P67A-GD65 (B3) LGA 1155 Intel P67 SATA 6Gb/s USB 3.0 ATX Intel Motherboard
    Intel Core i7-2600 Sandy Bridge 3.4GHz (3.8GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor Intel HD Graphics 2000 BX80623I72600
    ADATA XPG Plus Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model AXDU1333PC4G8-2P
    Seagate Barracuda ST31000524AS 1TB 7200 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
    MSI N780-3GD5 GeForce GTX 780 3GB 384-bit GDDR5 PCI Express 3.0 SLI Support Video Card
    RAIDMAX HYBRID 2 RX-630SS 630W ATX12V V2.2/ EPS12V SLI Ready CrossFire Ready Modular Power Supply, New Version with Build-in LED Fan On/Off Switch

The solution is not psu, or the hdd. You need to update your bios. I have encounterd this exact problem.


I'm having the same problem as OP except with a 770. The same post-skip problem and i cannot access my BIOS to manually flash it. Thus far any attempts to update it with MSI LU5 have failed, any ideas as to how to resolve this?

**Edit** I cleared my CMOS and still no luck, but when i mash DEL at startup now it says 'Entering Setup' at the bottom left of the boot screens (A2 + B2) and then proceeds to a black screen after the 2-3min B2 screen
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December 6, 2013 5:55:41 AM

ughg I love that when people have a problem the consensus is always look for a component to criticize. Its nlikely that the problem is your psu or power related. apart from the fact that gpu's use next to nothing while posting of course, most are set to lower clocks than idle even for boot.

To add insult to injury, I am having the same problem currently (black screen with blinking cursor during post) and im using 2x1500w supernova's so.....
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April 3, 2014 10:20:05 AM

Did this ever get resolved?

I am having the same problem... Gateway DX4380 with A10 5700 mobo and the card I installed is a GTX 750 TI SC.

Wonder if the card is dead? I am going to try it in a different computer today.
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