Overclocking the CPU alone, excluding the graphics card, is possible.

F5F Stay Refreshed Power Users Overclocking Overclocking the CPU alone, excluding the graphics card, is possible.

Quintje2002
Junior Member

10-25-2016, 01:19 AM

Hello everyone,
I’m facing an issue with overclocking my computer.
My PC specs are: CPU i5 3470 (can be overclocked to 4.00Ghz without GPU), MB ECS Z77h2-a3 (chipset z77), RAM Crucial 8Gb, GPU MSI GTX 960, and PSU FSP 600PNR-I.
The problem is that when I try to overclock the CPU using Intel XTU, it works fine and stays stable, but adding my GTX 960 causes a black screen with a changing reference clock.
I’ve attempted overclocking through BIOS, but nothing changes—even when setting BLCK to 102 MHz (stock 100 MHz) and voltage 1.2V, the OS remains unaffected.
I’m unsure how to fix this. Any advice would be appreciated. Thanks.

Quintje2002

10-25-2016, 01:19 AM #1

Zosiapx
Member

10-26-2016, 08:50 AM

This action causes the BCLK to be overclocked, which interferes with the PCI-E bus and negatively impacts the graphics card.

Zosiapx

10-26-2016, 08:50 AM #2

This action causes the BCLK to be overclocked, which interferes with the PCI-E bus and negatively impacts the graphics card.

Lips
Senior Member

624

10-26-2016, 10:13 AM

I think it might be the PSU, do you have another or could you lend one to test?

Lips

10-26-2016, 10:13 AM #3

I think it might be the PSU, do you have another or could you lend one to test?

Slickman4
Junior Member

10-26-2016, 04:26 PM

My prediction is the PSU, do you have another or can you borrow one to test?
I have another one that functions similarly.

Slickman4

10-26-2016, 04:26 PM #4

My prediction is the PSU, do you have another or can you borrow one to test?
I have another one that functions similarly.

cowcow4321
Senior Member

623

11-02-2016, 11:27 PM

I've been attempting to increase the CPU speed but changing the voltage in my BIOS doesn't update the Windows CPU settings to default.

cowcow4321

11-02-2016, 11:27 PM #5

I've been attempting to increase the CPU speed but changing the voltage in my BIOS doesn't update the Windows CPU settings to default.

BenstoLP
Junior Member

11-03-2016, 07:28 AM

This happens because increasing the BCLK frequency is essentially overclocking the PCI-E connection, causing issues with your graphics card.

BenstoLP

11-03-2016, 07:28 AM #6

This happens because increasing the BCLK frequency is essentially overclocking the PCI-E connection, causing issues with your graphics card.