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New Motherboard, post, black screen

post #1 of 6
Thread Starter 
Hello all. Today a friend of mine got a new motherboard after he rma'd his previous (Asrock P55 Pro, this was the problem the Asrock mobo had ). Today we put together the system. Everything is plugged in properly. We open the computer and, it posts correctly (one normal beep) screen turns on and it stays black (System gives no image, keeps the screen open so np "no signal") What is this. I checked RAM, GPU, Cooler, HDDs. Nothing of this is the problem. Could it be the CPU (I didn't think so because it seems to post).
What is this? Please help us, so he won't have to pay a computer huy to fix it !!!
The Steeler
(15 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core i5 - 3470 @ 3.4Ghz  Gigabyte Z77X - UD3H MSI Aero GTX1060 ITX 3GB Corsair Value 12GB DDR3 @ 1333Mhz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo 120GB WD4000AAKS 400GB WD1001FALS 1TB WD20EARS 2TB 
CoolingOSMonitorKeyboard
Noctua NH-D14 Windows 10 Pro x64 Samsung B2430HD 24" 1080p  Microsoft Wireless Keyboard 2000 
PowerCaseMouse
Corsair CX750M 750w Zalman Z11 Neo Microsoft Wireless Mouse 2000 
CPUMotherboardGraphicsRAM
Intel Core i3 - 3227U @ 1.9Ghz Dell HM76 AMD 7670M 1GB @ 720/1000 + HD4000  Elpida + Hyundai 8GB DDR3 @ 1600Mhz 
Hard DriveOS
ST9500420AS 500GB Windows 10 Pro x64 
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The Steeler
(15 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core i5 - 3470 @ 3.4Ghz  Gigabyte Z77X - UD3H MSI Aero GTX1060 ITX 3GB Corsair Value 12GB DDR3 @ 1333Mhz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo 120GB WD4000AAKS 400GB WD1001FALS 1TB WD20EARS 2TB 
CoolingOSMonitorKeyboard
Noctua NH-D14 Windows 10 Pro x64 Samsung B2430HD 24" 1080p  Microsoft Wireless Keyboard 2000 
PowerCaseMouse
Corsair CX750M 750w Zalman Z11 Neo Microsoft Wireless Mouse 2000 
CPUMotherboardGraphicsRAM
Intel Core i3 - 3227U @ 1.9Ghz Dell HM76 AMD 7670M 1GB @ 720/1000 + HD4000  Elpida + Hyundai 8GB DDR3 @ 1600Mhz 
Hard DriveOS
ST9500420AS 500GB Windows 10 Pro x64 
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post #2 of 6
How did you check the RAM? Did you try other brands of RAM? From experience a lot of the time when that happens the problem is the RAM.

If you unplugged all the drives and just booted it with the essentials (RAM, GPU, CPU & PSU) and the screen still stays black and you're absolutely sure it's not the RAM or GPU, the odds are that it's not the CPU, (it could be but it rarely is) and it could just be the new mobo. The new mobo might be bad.

Also, if you can try another PSU just to discard that possibility.
post #3 of 6
Thread Starter 
The problem is we do not have other RAM. I tried each stick at each slot (2 slots do not work (RAM Error beep), could this be it?)
The Steeler
(15 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core i5 - 3470 @ 3.4Ghz  Gigabyte Z77X - UD3H MSI Aero GTX1060 ITX 3GB Corsair Value 12GB DDR3 @ 1333Mhz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo 120GB WD4000AAKS 400GB WD1001FALS 1TB WD20EARS 2TB 
CoolingOSMonitorKeyboard
Noctua NH-D14 Windows 10 Pro x64 Samsung B2430HD 24" 1080p  Microsoft Wireless Keyboard 2000 
PowerCaseMouse
Corsair CX750M 750w Zalman Z11 Neo Microsoft Wireless Mouse 2000 
CPUMotherboardGraphicsRAM
Intel Core i3 - 3227U @ 1.9Ghz Dell HM76 AMD 7670M 1GB @ 720/1000 + HD4000  Elpida + Hyundai 8GB DDR3 @ 1600Mhz 
Hard DriveOS
ST9500420AS 500GB Windows 10 Pro x64 
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The Steeler
(15 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core i5 - 3470 @ 3.4Ghz  Gigabyte Z77X - UD3H MSI Aero GTX1060 ITX 3GB Corsair Value 12GB DDR3 @ 1333Mhz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo 120GB WD4000AAKS 400GB WD1001FALS 1TB WD20EARS 2TB 
CoolingOSMonitorKeyboard
Noctua NH-D14 Windows 10 Pro x64 Samsung B2430HD 24" 1080p  Microsoft Wireless Keyboard 2000 
PowerCaseMouse
Corsair CX750M 750w Zalman Z11 Neo Microsoft Wireless Mouse 2000 
CPUMotherboardGraphicsRAM
Intel Core i3 - 3227U @ 1.9Ghz Dell HM76 AMD 7670M 1GB @ 720/1000 + HD4000  Elpida + Hyundai 8GB DDR3 @ 1600Mhz 
Hard DriveOS
ST9500420AS 500GB Windows 10 Pro x64 
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post #4 of 6
Quote:
Originally Posted by tasospaok123 View Post
The problem is we do not have other RAM. I tried each stick at each slot (2 slots do not work (RAM Error beep), could this be it?)
It's a definite possibility. Even if the RAM is ok and works on a different motherboard it still might not be compatible with that board.
post #5 of 6
Thread Starter 
Bump for new info.
My friend sent his computer to the computer support section of the shop where he bought every part of his system except the GPU.
So, the guy there said that the cpu burnt because too much thermal paste was applied.
So, i remembered some thermal paste was left (Red): http://img827.imageshack.us/img827/6...lcorei5750.jpg

The guy from the shop said that thermal paste went down the grey part of the cpu and burnt it, and then the cpu burnt almost everything.
I didn't quite believe that, but is there any possibility that he is correct?
If not, how can i persuade him it is not that?
The Steeler
(15 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core i5 - 3470 @ 3.4Ghz  Gigabyte Z77X - UD3H MSI Aero GTX1060 ITX 3GB Corsair Value 12GB DDR3 @ 1333Mhz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo 120GB WD4000AAKS 400GB WD1001FALS 1TB WD20EARS 2TB 
CoolingOSMonitorKeyboard
Noctua NH-D14 Windows 10 Pro x64 Samsung B2430HD 24" 1080p  Microsoft Wireless Keyboard 2000 
PowerCaseMouse
Corsair CX750M 750w Zalman Z11 Neo Microsoft Wireless Mouse 2000 
CPUMotherboardGraphicsRAM
Intel Core i3 - 3227U @ 1.9Ghz Dell HM76 AMD 7670M 1GB @ 720/1000 + HD4000  Elpida + Hyundai 8GB DDR3 @ 1600Mhz 
Hard DriveOS
ST9500420AS 500GB Windows 10 Pro x64 
  hide details  
Reply
The Steeler
(15 items)
 
   
CPUMotherboardGraphicsRAM
Intel Core i5 - 3470 @ 3.4Ghz  Gigabyte Z77X - UD3H MSI Aero GTX1060 ITX 3GB Corsair Value 12GB DDR3 @ 1333Mhz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo 120GB WD4000AAKS 400GB WD1001FALS 1TB WD20EARS 2TB 
CoolingOSMonitorKeyboard
Noctua NH-D14 Windows 10 Pro x64 Samsung B2430HD 24" 1080p  Microsoft Wireless Keyboard 2000 
PowerCaseMouse
Corsair CX750M 750w Zalman Z11 Neo Microsoft Wireless Mouse 2000 
CPUMotherboardGraphicsRAM
Intel Core i3 - 3227U @ 1.9Ghz Dell HM76 AMD 7670M 1GB @ 720/1000 + HD4000  Elpida + Hyundai 8GB DDR3 @ 1600Mhz 
Hard DriveOS
ST9500420AS 500GB Windows 10 Pro x64 
  hide details  
Reply
post #6 of 6
Quote:
Originally Posted by tasospaok123 View Post
Bump for new info.
My friend sent his computer to the computer support section of the shop where he bought every part of his system except the GPU.
So, the guy there said that the cpu burnt because too much thermal paste was applied.
So, i remembered some thermal paste was left (Red): http://img827.imageshack.us/img827/6...lcorei5750.jpg

The guy from the shop said that thermal paste went down the grey part of the cpu and burnt it, and then the cpu burnt almost everything.
I didn't quite believe that, but is there any possibility that he is correct?
If not, how can i persuade him it is not that?
It depends on the thermal paste. Most thermal paste are non-conductive and wouldn't cause the CPU or mobo to short. If the thermal paste used was conductive then it can short out the mobo and CPU if enough paste was used that it dripped on to the mobo. However, if the thermal paste was only making contact with the part on the CPU that you painted red then it shouldn't be a problem. Now the fact that it burnt almost everything else sounds a little strange but I wouldn't say it's impossible since I see unexpected things happen with computers often.

What exactly are the other components that got burnt?
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