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Installed a second card and now getting no signal on first

February 10, 2013 at 22:17:55
Specs: Windows 7HP 64bit, i2700k/16GB Ripjaw X 1333

My system is as follows:

CPU: i2700k
MOBO: tz68k+
RAM: 16GB (2x8GB) DDR3 1333 Gskill Ripjaw X
Video: MSI TwinFrozr GTX 570
PSU: Corsair 750W
HDD: Intel SSD/ WD 1TB, Seagate 1TB, WD 500GB, WD 250GB

I was trying to install a secondary graphics card: eVGA GTX 260x16 and dedicate that card just for the physX. After I installed the graphics card and plugged in the additional power cables needed. When I booted the comptuer I got "no signal." The monitor cable was still connected to the GTX 570. When I pulled out the power cables to the 260, I received a signal. Does this mean I need a stronger power supply?



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#1
February 11, 2013 at 05:59:45

I've never worked with SLi or Crossfire configs before but looking at your board specs, it apparently supports Crossfire only, so running dual nvidia cards may not work. Did you check your manual or do any googling about how to set it up?

http://www.biostar.com.tw/app/en/mb...


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#2
February 11, 2013 at 08:55:11

Well I'm not running SLI. I'm just using the GTX260 for the PhysX to see if I can boost my frames. The 260 is only connected to the mobo and the powercables. I didnt bridge it with the GTX570. Why would the computer only get a signal once I unplug the power cables from the 260 but I can still leave it connected to the mobo?

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#3
February 11, 2013 at 10:32:24

I understand you're not using SLi, I was just saying that there may be a conflict. Try temporarily unplugging all the extra HDDs to lighten the load, then connect the power to the GTX 260 again & see if it works. That will free up about 3-4 amps on the +12v rail (approx 40W) & should tell you if the PSU is the problem.

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#4
February 11, 2013 at 11:23:10

I only found 2 Corsair 750W PSUs. Both have 62A @+12V. I doubt your issue is with the PSU.

See Pg. 34 of your user manual to learn the proper BIOS settings and which series of both AMD and nivida cards are supported.

Doesn't appear to support your second card.
Nvidia: GF 4xx/5xx series

Note: PCIe 16 #1 slot is closest to the CPU.

The BIOS has settings for each of the 2 graphics slots. Auto, enable, disable.


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