Solved New video card problems

Asus Radeon hd 7850 hd7850-dc2-2gd5-v2 v...
October 31, 2013 at 21:27:42
Specs: Windows XP, AMD 64x2 4200+/ 2 gigs
I replaced my old NVIDIA GT220 with an ASUS Radeon HD7850. The first problem I encountered was that in trying to use my tv for a monitor the settings were really low and when I adjusted them my computer would freeze up and many of my games would not run.
Upon restarts the low screen resolution settings were back. The GT220 was able to display on the tv without any problems other than poor performance. So I just went with my tiny old monitor. When playing a video game like World of Warcraft I notice no improvement in performance and that leaves me confused. Any suggustions as to what the problem might be would be greatly appreciated.

Processor: AMD 64x2 4200+
Motherboard: ASUS M4A79 Deluxe
Power Supply: Mushkin...?
RAM: 2 gigs
OS: Windows XP

message edited by Duckula


See More: New video card problems

Report •


✔ Best Answer
November 1, 2013 at 14:42:14
Your power supply shows two 12Volt rails at 20 Amps BUT then shows a total combined 12 Volt amperage rating of 28Amps so it looks like the manufacturer is using some raz-a-ma-taz with the numbers. Combining this with the 30Amp rating on the 5Volt rail (which will never be used) in order to push up the overall Wattage ratings, which is common on cheap power supplies, makes me suspicious of all of their ratings. While in theory, the graphics card should work on a 500 watt or higher power supply, yours may not be up to the task of running it under load.
Before assuming that the video card is bad, I would try it with a better power supply, especially if you can borrow one to test it with.
You want a power supply that is 80% or higher certified efficient, has a single 12Volt Rail, Active PFC, is made by a quality name brand, and comes with a 3-5 year warranty.
Look at these:
http://www.newegg.com/Product/Produ...
I have had good results with Corsair and XFX models.

You have to be a little bit crazy to keep you from going insane.



#1
November 1, 2013 at 05:29:46
Did you delete the drivers for your GT220 card before installing the new card and then install the new drivers for it?
Look in Device manager for your video device and see if there is a yellow or red indicator for it and that the old card does not still show up.
Make sure that you are using the primary PCIe 16x slot.
Look in BIOS for the graphics settings to make sure they are correct.
Do you have the 6pin PCIe connector attached to the graphics card?
Post your power supply's specs so we can see if it will properly power your card. Include the make, model number, the Wattage, and the Amperage rating on the 12Volt Rail(s). Also tell us if your power supply has the 6Pin connector or if you are using the 'Y' adapter plugged into two 4pin Molex connectors (these need to be on two different wire runs, not two connectors on the same wire or you will not get the amperage you need for the card).

You have to be a little bit crazy to keep you from going insane.

message edited by Fingers


Report •

#2
November 1, 2013 at 06:34:02
The GT220 is a low end POS, the HD 7850 is a high end gaming card. There's a HUGE difference in power requirements. As Fingers pointed out, you need to uninstall the NVidia drivers so that there's no conflict & make sure the 6-pin PCIe plug is connected to the card.

http://www.hwcompare.com/12100/gefo...


Report •

#3
November 1, 2013 at 09:36:00
The power supply is a Mushkin HP-550W
input 115v 10a 60 hz/230v 5a 50hz
output 550w max
red 5v 30a
yellow 12v1 + 12v2 20a
white -5v 0.5a
blue -12v 0.8a
orange 3.3v 24a
purple 5vsb 25a
5v + 3.3v total output 220w
12v+12v total output 28a

Yes it is a 6pin connector and it is connected. Old drivers are uninstalled. There are no conflicts showing in device manager and yes I am using the primary PCIe-16slot.

When I use GPU-Z all the data it displays matches the comparison chart that was linked.

message edited by Duckula


Report •

Related Solutions

#4
November 1, 2013 at 14:42:14
✔ Best Answer
Your power supply shows two 12Volt rails at 20 Amps BUT then shows a total combined 12 Volt amperage rating of 28Amps so it looks like the manufacturer is using some raz-a-ma-taz with the numbers. Combining this with the 30Amp rating on the 5Volt rail (which will never be used) in order to push up the overall Wattage ratings, which is common on cheap power supplies, makes me suspicious of all of their ratings. While in theory, the graphics card should work on a 500 watt or higher power supply, yours may not be up to the task of running it under load.
Before assuming that the video card is bad, I would try it with a better power supply, especially if you can borrow one to test it with.
You want a power supply that is 80% or higher certified efficient, has a single 12Volt Rail, Active PFC, is made by a quality name brand, and comes with a 3-5 year warranty.
Look at these:
http://www.newegg.com/Product/Produ...
I have had good results with Corsair and XFX models.

You have to be a little bit crazy to keep you from going insane.


Report •

Ask Question