In the past few days, when I turn on my computer, it sometimes freezes after a certain period of time. The mouse does not respond, nor the keyboard, and I have to do a force shutdown.
However, since last night, the problem got worse. At first, it would freeze right after reaching the desktop, and for some reason, the PC may auto reboot after a force shutdown (doesn't seem to happen all the time). Now, my PC sometimes makes it to the login screen before freezing, or gets stuck with a blank screen (no monitor output). Or sometimes, it auto shutdowns a few seconds after turning on, and after auto shutdown it would start up again and then shutdown again (with the screen blank). I can only stop this by pulling the plug.
Also, I noticed that sometimes the desktop would make a weird noise (not a beep), not really sure what it is, but it does not happen all the time.
Sorry if things seem confusing, because it seems that the symptoms that my computer shows isn't the same every time.
I am wondering if it could be a PSU issue, since it is a 270W power supply, and I upgraded my graphics card from a Radeon HD 7450 to a 7750 about 6 months ago. (bought the PC 1 1/2 years ago) However, prior to that, I did a lot of research, and many people said that it should work fine. Doesn't seem to explain why my system would freeze on the desktop previously though.
Specs:
Windows 8.1 Pro 64 with Media Center
Intel Core i5-3450
HD 7750 connected via PCIe x16 2.0
8GB RAM
500GB HDD
HP 2311f 23" 1080p connected via DVI
270W PSU
DVD Drive
No overclocking or underclocking!
Original specs: http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en... (they upgraded to 8GB ram when I bought the desktop)
I would really appreciate it if anyone could offer some help or advice on how to troubleshoot this problem!
However, since last night, the problem got worse. At first, it would freeze right after reaching the desktop, and for some reason, the PC may auto reboot after a force shutdown (doesn't seem to happen all the time). Now, my PC sometimes makes it to the login screen before freezing, or gets stuck with a blank screen (no monitor output). Or sometimes, it auto shutdowns a few seconds after turning on, and after auto shutdown it would start up again and then shutdown again (with the screen blank). I can only stop this by pulling the plug.
Also, I noticed that sometimes the desktop would make a weird noise (not a beep), not really sure what it is, but it does not happen all the time.
Sorry if things seem confusing, because it seems that the symptoms that my computer shows isn't the same every time.
I am wondering if it could be a PSU issue, since it is a 270W power supply, and I upgraded my graphics card from a Radeon HD 7450 to a 7750 about 6 months ago. (bought the PC 1 1/2 years ago) However, prior to that, I did a lot of research, and many people said that it should work fine. Doesn't seem to explain why my system would freeze on the desktop previously though.
Specs:
Windows 8.1 Pro 64 with Media Center
Intel Core i5-3450
HD 7750 connected via PCIe x16 2.0
8GB RAM
500GB HDD
HP 2311f 23" 1080p connected via DVI
270W PSU
DVD Drive
No overclocking or underclocking!
Original specs: http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en... (they upgraded to 8GB ram when I bought the desktop)
I would really appreciate it if anyone could offer some help or advice on how to troubleshoot this problem!