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Windows 7: CPU does not detect video card

11 Mar 2014   #1
Paes

Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1
 
 
CPU does not detect video card

Hi all,

... strange issue that I cannot figure out.

Motherboard: Gateway DX4850
CPU1: i5-2300
CPU2: Pentium G645

When I install the Pentium CPU, it detects the video card in the x16 PCIE slot. When I install the i5 CPU, it does not detect the card.

I've tried the i5 CPU in another MoBo and same issue --- it does not detect the video card.

There are no bent pins on the CPU, and it was previously functional.

Does anyone have any suggestions on how to troubleshoot this?


My System SpecsSystem Spec
.
11 Mar 2014   #2
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

Your motherboard supports these CPU's.

https://support.gateway.com/s/deskto...X4850sp5.shtml

Operating System Genuine Windows® 7 Home Premium 64-bit2 Processor1, 3, Intel® Core™ i7-2600 processor
Intel® Core™ i5-2500 processor
Intel® Core™ i5-2400 processor
Intel® Core™ i3-2120 processor
Intel® Core™ i3-2100 processor

From post #1

Quote:
Motherboard: Gateway DX4850
CPU1: i5-2300
CPU2: Pentium G645
It seem like Gateway used a i5-2300

http://www.newegg.com/Product/Produc...82E16883113171

Gateway DX4850-45u (PT.GBL02.018) Desktop PC Intel Core i5 2300 (2.80GHz) 6GB DDR3 1TB HDD Capacity Windows 7 Home Premium 64-bit

When you are using a prebuilt motherboard (Gateway) their is no way to get enough info.

If I had to guess I would think it's the bios.
My System SpecsSystem Spec
11 Mar 2014   #3
Paes

Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Thanks for pointing that out. The i5-2300 came with the server, and was working fine up until I swapped it out with the Pentium processor, so I'm not sure that it has to do with CPU/MoBo compatibility.
My System SpecsSystem Spec
.

11 Mar 2014   #4
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

That would be my guess. With that system and the lack of information they are very hard to do any upgrading.
My System SpecsSystem Spec
11 Mar 2014   #5
Paes

Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by Layback Bear View Post
That would be my guess. With that system and the lack of information they are very hard to do any upgrading.
There's no upgrade involved in this situation. All I did was take out the CPU the came with the Desktop, put a Pentium CPU in the board, and then put the original CPU back.

The result was that the original CPU no longer detects anything I put in the PCIe x16 slot.

I don't think this has anything to do with compatibility between the CPU and MoBo. You can see from the link below that this MoBo/CPU combination has been sold together.

Buy the Gateway Core i5-2300, 6GB DDR3, 1.5TB at TigerDirect.ca
My System SpecsSystem Spec
11 Mar 2014   #6
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

I know your system came with a i5-2300. I posted the site in post #2. The i5-2300 CPU has intel graphics and the Pentium G645 doesn't.
You could check your bios and see if their is a setting to choose graphics.
You could set your cmos back to default and see what happens.

Because I have never tried what you have done with the same equipment you have I can't give you a exact solution to your problem.

You can get a copy of the motherboard manual here.
https://support.gateway.com/product/...x?modelId=3452

I have not found any place that states aPentium G645 should of been installed on that motherboard. So my suggestion may or may not help with this mismatch and the damage that it caused.
My System SpecsSystem Spec
11 Mar 2014   #7
Paes

Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Quote:
You could check your bios and see if their is a setting to choose graphics.
I couldn't find anything in the BIOS to disable the integrated graphics .

Quote:
You could set your cmos back to default and see what happens.
Tried that. No luck.

Quote:
You can get a copy of the motherboard manual here.
https://support.gateway.com/product/...x?modelId=3452
I didn't find a MoBo manual --- just a generic manual that does not provide much information.

Quote:
I have not found any place that states aPentium G645 should of been installed on that motherboard. So my suggestion may or may not help with this mismatch and the damage that it caused.
Understood --- I will keep trying. It seems strange that the unsupported CPU works fine and the one that came with the machine is having issues.
My System SpecsSystem Spec
11 Mar 2014   #8
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

Maybe swapping cpu's a pin on the motherboard got bent.
My System SpecsSystem Spec
11 Mar 2014   #9
Paes

Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1
 
 

Quote   Quote: Originally Posted by Layback Bear View Post
Maybe swapping cpu's a pin on the motherboard got bent.
If that were the case, then the PCIe x16 slot would not work with the other CPU either --- but it does.

I'm really stumped with this one.
My System SpecsSystem Spec
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