You need to provide more details, especially full PC specs. Some quick things to check:
Make sure the GPU is seated properly on the PCI-E slot, and all the PCI-E power cables are connected to the GPU.
Update your system BIOS, if not done so.
Clear and reset all the CMOS/BIOS settings to default, if need be (details are below).
If your motherboard has support for onboard graphics, then try booting the system without using the GPU. Plug the monitor's cable to the integrated graphics.
Anyways, kindly provide PC specs. This is just for reference. You don't have to provide ALL these details, but only those which are related to your current issue at hand.
-1. "Complete" system specs should ALWAYS be accompanied with any driver, hardware, or performance question. Do not post DXDiag reports as they contain a TON of useless information. Posting a DxDiag in place of a System Spec List tends to ward off potential members from helping you.
Please supply the following system details/information:
(Complete System Specs)
-CPU make and model# (clock speed/voltage, type of cooler, and "Core" temperature @ idle and load)
-Motherboard make & model# (include Bios version if graphics card is not recognized or you are having stability issues)
-RAM (amount, clock speed, model#/link of kit, configuration)
-Graphics card(s) make and model# (clock speed, voltage if modified, Driver version and GPU temp both @ idle and load)
-Power supply make,model#, "AND" age (note if using 110V or 220V A/C input)
-HDD/SSD configuration (ie: Raid setup/ back up/ OS drive/etc..)
-Case/Chasis make,model# (fan make, model#, and configuration if having thermal issues)
-Operating System (If using Windows note Framework and service pack version)
-Monitor make, model#, and resolution (If model# is unknown list resolution and refresh rate)
*If the unit is a "laptop" or "All-in-one" system you must note the make and model# of the unit. Be sure you are ALWAYS using the OEM/manufacturer's Driver updates for the unit. Not related in your case.
*If "Crashing":
-Note the nature of the "crash" in detail, as there are several definitions for the word "crash".
*If "performance" related issue:
-Note the "exact" point in which the performance reduction occurred (ie: After Windows update, After Bios update, After Driver update, After thermal system shutdown, After Hardware change/upgrade etc...)
*For diagnostic purposes please disable the following:
-Any/all Antivirus/ Anti-malware software
-Any/all OSD monitoring software
-ALL overclocks outside of factory spec .
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Also, the easiest way to clear the CMOS is to enter the BIOS setup utility and choose
Reset BIOS Settings to their factory default levels.
The exact menu option in your particular motherboard's BIOS may differ but look for phrases like
reset to default,
factory default,
clear BIOS,
load setup defaults, etc. Every manufacturer seems to have their own way of wording it. The BIOS Settings option is usually located near the bottom of the screen, or at the end of your BIOS options, depending on how it's structured. If you're having trouble finding it, look close to where the
Save or
Save & Exit options are because they're usually around those.
Another way to clear CMOS is to reseat the CMOS battery. Start by making sure your computer is unplugged. Next, open up your computer's case if you're using a desktop PC, or find and open the small CMOS battery panel if you're using a tablet or laptop computer.
Finally, remove the CMOS battery for a few minutes and then put it back in. Close the case or battery panel and then plug in, or reattach the computer's main battery.
By disconnecting and then reconnecting the CMOS battery, you remove the source of power that saves your computer's BIOS settings, resetting them to default.
Another way to clear the CMOS is to short the
CLEAR CMOS jumper on your motherboard, assuming your motherboard has one. Make sure your computer is unplugged and then open it up. Look around your motherboard's surface for a jumper with the
CLEAR CMOS label, which will be located
on the motherboard and near the jumper. These jumpers are often located near the BIOS chip itself or next to the CMOS battery. Some other names by which you might see this jumper labeled include
CLRPWD,
PASSWORD, or even just
CLEAR.
Do all these things VERY carefully, if you are not comfortable, then ask someone else for help, if need be.