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PCIe SSD affecting graphics?

post #1 of 6
Thread Starter 
I have just installed an OCZ revodrive 3 into my rig, after cloning the OS from my original SSD everything works fine, until i ran a couple of benchmarks. I ran 3Dmark 11 and 3Dmark vantage and both scores were considerably lower than prior to installing the revodrive. The physics score is slightly higher but the graphics score is a lot lower. I have an ASUS Sabertooth Z77 motherboard and 2x EVGA GTX670 FTW in SLI. My question is now that i am using the 3rd PCIe slot will this be dropping the speeds of the other 2 slots? Any Help is much appreciated.
post #2 of 6
Quote:
Originally Posted by Collier View Post

I have just installed an OCZ revodrive 3 into my rig, after cloning the OS from my original SSD everything works fine, until i ran a couple of benchmarks. I ran 3Dmark 11 and 3Dmark vantage and both scores were considerably lower than prior to installing the revodrive. The physics score is slightly higher but the graphics score is a lot lower. I have an ASUS Sabertooth Z77 motherboard and 2x EVGA GTX670 FTW in SLI. My question is now that i am using the 3rd PCIe slot will this be dropping the speeds of the other 2 slots? Any Help is much appreciated.


AFAIK the Revo drive shouldn't affect your GPU bandwidth. The 3rd PCIe slot is run off the Z77 chipset while the top two are run on the PCIe lanes integrated into the CPU. So I don't think it would make that huge of a difference. And I take it you've checked both cards are getting power, SLI bridge installed, SLI enabled, etc...?

It looks like we have a similar setup. What are your benchmark scores? I can run Vantage and 3DMark 11 later tonight for comparison if you'd like.
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KamIX
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post #3 of 6
Thread Starter 
Ok thanks for that. SLI is enabled and working correctly as far as I can tell, both cards behave the same when monitoring through EVGA Precision X.

In 3DMark 11 I scored 12425 overall, 13595 for graphics and 10367 for physics.

In 3DMark Vantage i scored 22406 overall, 20474 for graphics and 31251 for the CPU.

In both benchmark results under the PC Health Check option on the results page the graphics score had a red icon beside it while the other scores had green icons.

My other concern is the cards are not getting enough voltage, the cards are slightly tweaked, I am running a Corsair AX750, would the new installation of the Revodrive be sucking enough power to affect the cards?

Thanks again very much.
post #4 of 6
Yeah something is definitely not right. Here's my results with Vantage and 3DMark11






Regarding your PSU, the AX750 is a solid unit and it'll be more than enough power. If you have some concerns about it, you can check with a PSU tester like this or even check in HWmonitor to see if anything is out of spec.

If it's not a hardware issue, it might be worth reloading the nVidia drivers to start...maybe something went wrong when you imaged your system to the RevoDrive? thinking.gif

---

Edit: one more thing...it would be worth checking what GPUz reports. Here's a screen capture of mine for reference:


Edited by francisw19 - 8/21/13 at 7:58pm
KamIX
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KamIX
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post #5 of 6
Thread Starter 
Reloaded the drivers and got 46349 in 3DMark Vantage and 15752 in 3DMark 11 so with a few tweaks should be back around where I was prior. Bit of a rookie mistake not reloading the drivers but as everything appeared to be working fine it never crossed my mind.

Thanks again for your help.
post #6 of 6
Quote:
Originally Posted by Collier View Post

Reloaded the drivers and got 46349 in 3DMark Vantage and 15752 in 3DMark 11 so with a few tweaks should be back around where I was prior. Bit of a rookie mistake not reloading the drivers but as everything appeared to be working fine it never crossed my mind.

Thanks again for your help.

Good stuff...nice to hear! thumb.gif
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KamIX
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