Sign in with
Sign up | Sign in
Your question

Can a graphics card function at all without the proper electricity?

Last response: in Graphics & Displays
Share
July 15, 2012 4:17:40 PM

I have been using my old rig for a while with the Sapphire Radeon HD 5770 1GB, but I recently upgraded to XFX Radeon HD 6950 2GB.

All I was wondering is if a video card can actually power on and run (just not at full capacity) or does the the computer not start up at all?
Thanks :) 
a c 235 U Graphics card
July 15, 2012 4:26:28 PM

the PC will power on but once the card pushes the PSU past it's limit, the PC will shut down (assuming proper safety features are in the PSU)
m
0
l
a b U Graphics card
July 15, 2012 4:33:40 PM

It depends how short on power it is but beware it could kill the power supply and take other components with it so don't try it.
m
0
l
Related resources
July 15, 2012 4:41:19 PM

If your PSU is pushed over its limits and it got proper protection it will turn the PC off otherwise the PSU will explode and your whole home may be on fire.
m
0
l
July 15, 2012 4:54:39 PM

So I guess that's not my problem... Haha. So why is it that my graphics card cant run as well as it should?
m
0
l
a c 235 U Graphics card
July 15, 2012 5:03:52 PM

jcpbandb said:
So I guess that's not my problem... Haha. So why is it that my graphics card cant run as well as it should?


post your PC specs

CPU
PSU make and model
RAM
operating system
monitor resolution


m
0
l
July 15, 2012 5:18:14 PM

AMD Phenom II x4 965 (3.4Ghz)
Antec truepower 550w
XFX Radeon HD 6950 2GB
6GB DDR2 RAM (kingston I think)
Windows 7 Home premium 64bit
Acer 23inch 1920x1080


m
0
l
a c 235 U Graphics card
July 15, 2012 5:27:44 PM

you have a good PSU with plenty of power for your card

why do you think your card is not showing you full potential? can you give specific examples?
m
0
l
July 15, 2012 5:36:25 PM

I was over at my friend's house a few days back and he had just gotten his new rig (Same specs except he has the HD 6970). We installed a couple of his steam games and started to play. The first thing I booted up was Skyrim. I chose Ultra just to test it out, and to my surprise, he ran it PERFECTLY. No dip in performance at all. When I try the game, however, I can't even run It on medium like he can on ultra. Also, since I have upgraded GCards, I have noticed little to no performance increase. One of my friends has a computer with the HD 5770 and a 2.3 or 2.4 Ghz processor and can run it better than I can. I have ran 2 different virus scans, and have closed any unnecessary Processes. I don't understand what is happening, but by no means am I an expert on the stuff. Here's hoping you can help me :) 
m
0
l
a c 235 U Graphics card
July 15, 2012 6:02:38 PM

with your specs, you should have no issue maxing the game out. how old is your PSU? are you running the latest drivers from AMD for your card?
m
0
l
July 15, 2012 6:41:43 PM

PSU is about 5 months old, and I have updated every driver I could. Any other suggestions?
m
0
l
July 15, 2012 7:42:42 PM

Check if VSync off in the driver. VSync is usually a performance killer.

Check your gpu temperature.
m
0
l
a c 235 U Graphics card
July 15, 2012 8:16:00 PM

and CPU temps

then run some benchmarks to make sure everything is working to proper spec
m
0
l
July 15, 2012 9:56:39 PM

I set my Vsync to "always off" but hardly anything changed :( 
And while running Skyrim at max my GPU temperature is hovering around 57degrees and my CPU is around 52degrees.
But for the benchmark do you mean use something like FurMark? Or what?
m
0
l
July 16, 2012 1:42:07 AM

Try updating drivers of the mobo and gpu. If it is not overheating, cpu bottleneck or psu and it is not i can only think the card is defective or you bought a non reference card with low specs. You may try your card in a similar computer to make sure.
m
0
l
a c 79 U Graphics card
July 16, 2012 2:51:27 AM

Banana_Joe said:
Check if VSync off in the driver. VSync is usually a performance killer.

Check your gpu temperature.


Vsync should always be on. It has zero affect unless you're over 60FPS which he is clearly not, and besides skyrim is limited to 60FPS by the games code.

shouldn't really matter but what's you're motherboard. little odd to be using 6GB of DDR2 with that CPU.

Confirm your CPU and gpu clocks and monitor percent load while in game
m
0
l
a c 79 U Graphics card
July 16, 2012 2:56:05 AM

Banana_Joe said:
Try updating drivers of the mobo and gpu. If it is not overheating, cpu bottleneck or psu and it is not i can only think the card is defective or you bought a non reference card with low specs. You may try your card in a similar computer to make sure.


He updated his drivers. There are non"non reference cards with low specs" as that would not be a 6950
m
0
l
July 16, 2012 4:55:18 AM

When I run my benchmarks, they say that the hardware is running at its advertised speeds (840Mhz on the 6950) with safe temperatures.
m
0
l
!