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Asus 660 won't display

Last response: in Graphics & Displays
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January 25, 2013 1:43:09 PM

I could use some help with a recent yet prolonged problem I have been having with my computer. I recently bought a GTX 660 after having a GTX 550. The first card was DOA(or so I thought.) I tried my newly received card in my friends computer and the display showed up fine. So I reformatted and it sill didn't solve the problem I am having.
I put the card I just tested in my computer and to no avail, thinking the motherboard for some reason didn't support a newer generation. I than put EVEN MORE money into a new motherboard and after installation(and another format) the display still isn't showing. I have a large enough power supply(or so I think).

So my question is, why after all this work and replacing all the hardware am I still not able to see this card working? I have done every hardware test out there including replacing components. I fell as though a sledge hammer might work as well at the moment! :fou: 
P.s. My new bios has a graphical layout of everything that is hooked to the board, and does not see my card in its pci slot.

Here is my old motherboard if it helps:
Gigabyte Intel Z68 Micro ATX LGA 1155 Motherboard(Touch Bios overclocking)

HELPP!!! :( 

Here are my specs:

CPU: Intel Core i5-2500K Sandy Bridge 3.3GHz(Quad-Core)

Graphics Card: ASUS GTX660-DC2O-2GD5 GeForce GTX 660 2GB 192-bit GDDR5 PCI Express 3.0 x16 HDCP Ready SLI Support Video Card

Operating System: Windows 7 64 bit Professional Edition

New Motherboard:ASRock Z77 Extreme4-M LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 Micro ATX Intel Motherboard

Computer Case:RAIDMAX SMILODON Extreme ATX Mid Tower Case ATX-612WEB

RAM:Corsair Vengeance Blu 8 GB (2X4 GB) PC3-12800 1600mHz DDR3

Power Supply:Coolmax 750W 140mm Blue LED Fan Power Supply CUL-750B (Black)

More about : asus 660 display

January 25, 2013 5:52:21 PM

your biggest 12 volts line give only 16 amp and the card use 199 watts to work so it could be that your psu is giving the most he can for the graphic,also look at your motherboard user manual page 10 for sandy bridge limitations and see page 61 for the northbridge settings on graphic .
Related resources
January 26, 2013 12:05:07 AM

taurinemike said:
http://www.coolmaxusa.com/productDetailsPower.asp?item=...

Here is a link to my power supply also.


This is probably your problem. Look for a power supply with a single 12v rail. On the spec sheet it should look something like this http://www.seasonicusa.com/images/New_X/650-750-850/X_6...

Notice how there is only one section labeled 12v unlike yours that has 12v1, 12v2, 12v3, and 12v4. What might be happening is that even though your PSU "technically" has enough power because of its multi-rail design you cant get it to go where you need it. Having a single rail design fixes this by giving you one large pool of power instead of multiple small ones
January 26, 2013 9:38:25 PM

That make sense.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
I'm guessing this power supply would work fine. Last time I'll ever buy cheap. So whats the difference between 12v2.3(which is what mine is) and a normal true 12v? I will purchase this power supply hopefully it solves all my problems!
a c 168 Î Nvidia
January 26, 2013 9:42:48 PM

scout_03 said:
your biggest 12 volts line give only 16 amp and the card use 199 watts to work so it could be that your psu is giving the most he can for the graphic,also look at your motherboard user manual page 10 for sandy bridge limitations and see page 61 for the northbridge settings on graphic .


Where did you get 199w from? :heink: 

http://www.geforce.com/hardware/desktop-gpus/geforce-gt...

It's a 140w card according to Nvidia.
January 26, 2013 10:12:06 PM

taurinemike said:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
nvm i'll pay $10 extra bucks and get this one. Hopefully this is the right with one "rail" I understand everything in the computer world aside form psu's.


That one should work fine, on your previous question on the difference between a single rail design vs. what you have. On each 12v rail on yours they only have 16A of current. Those are wired independently so they have 192W each and wont share. For the single rail design I will use the HX850 you have linked. That has a single 12v rail at 70A which works out to 840W. Because it is the only source for +12v anything that uses that pulls out of that pool. So with that you ether have enough power or not. Unlike with the multi-rail design where you just cant get to the power you can have enough power just it going to the wrong places.

Also never buy a cheap power supply. I have seen people put over $1k into computer hardware and have it all ruined by a cheap PSU. Sometimes when a power supply goes it can fry a part or 2 when it dies. The power supply is like the heart of the system and a good stable power source can help things last.
a c 168 Î Nvidia
January 27, 2013 7:23:14 AM

scout_03 said:
@ mousemonkey look like i took the ti specs but asus for this card ASUS GTX660-DC2O-2GD5 talk around 150 watts http://www.asus.com/Graphics_Cards/GTX660DC2O2GD5/#spec... this was not my intention to milead the poster .

According to Nvidia the Ti is only a 150w card and having two of them I'm inclined to agree.
January 27, 2013 3:57:29 PM

My online gaming friend and I have almost identical systems aside from the case and the power supply. He recommended this one and I purchased it. You guys have really helped me with this when it seemed like I couldn't figure it out. All of you have given me very good answers however I'm not sure who to pick for best awnser. They all have been helpful.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
January 27, 2013 4:07:38 PM

you choose the want you want where here to help if we could .
February 4, 2013 1:55:18 PM

Update: Installed new power supply. Card still wont display. $255 into getting this fixed. I sent the Asus card back to manufacture, it has to be bad nothing. Nothing explains it. I put it someone else computer and it did work once. Had to of been a fluke.



Don't...

Bump posts


http://www.tomshardware.com/forum/283384-33-read-first
!