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post #11 of 36
Quote:
Originally Posted by Mobius01 View Post
I'll go for the second 5870 then

Will a second be affected by running on the x-8 connector?
Not enough to matter, in any case that's your only option without upgrading to a board that can offer full 16x bandwidth to two slots at once.
post #12 of 36
Quote:
Originally Posted by Mobius01 View Post
Abysmal frame-rates with Crysis (15-20), GTA 4 (15-20), Assassin's Creed I and II (20-25), Splinter Cell ConViction (20-25) and couple of others.
There's a software issue at play most likely.

I get higher frames than you on these games, some MUCH MUCH higher, and our systems are quite similarly matched in context (though your 5870 is a bit stronger in some situations).

How high is your CPU overclock?

How high is your Northbridge overclock?

What are your RAM speeds/timings?

What resolution are you playing at and what level in games?

For reference point You should be seeing Assassins Creed 1/2 on max with full AA running 60fps, GTA IV on all high with 40% sliders hitting between 40-60fps, Splinter Cell all max including AA running @ 50-60fps, all of these at Full HD 1080p.

x8/x8 PCIe for crossfiring 5870's will show a few percentage points less than x16/x16. Absolutely nothing to worry about or consider.

The 5870 is you most logical upgrade, though Hex-cores overclock higher with less volts, have stronger NB's and have extra power to handle crossfire setups - but you shouldn't NEED one to get the most out of either one or two 5870s.

Right now let's focus on getting your system running as is properly, then consider upgrades.
Edited by willibj - 1/12/11 at 12:51pm
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post #13 of 36
You shouldn't be getting those framerates.
post #14 of 36
Thread Starter 
Quote:
Originally Posted by willibj View Post
How high is your CPU overclock?

How high is your Northbridge overclock?
I haven't tried overclocking properly, yet.


Edited by Mobius01 - 1/12/11 at 12:54pm
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post #15 of 36
Quote:
Originally Posted by Mobius01 View Post
I haven't tried overclocking properly, yet.
Overlocking isn't going to be the total difference - I would suggest a full reinstall of Windows and all drivers.

That said, if you get your NB up to 2600mhz from 2000mhz stock you WILL see big gains in your minimum frame rates in games. The northbridge overclock shows the most real-world difference.

I highly recommend reinstalling everything, starting with a fresh slate and getting a half decent overclock on your CPU, NB, Ram including tight timings, GPU and making sure its ALL stable at LOAD.

Then install the games and see again. If this is done correctly and frames do not jump up to at least double what you are seeing now, then you might have a bigger problem on your hands, something we'll deal with if it comes to that.
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post #16 of 36
Quote:
Originally Posted by Mobius01 View Post
I haven't tried overclocking properly, yet.

Please tell me that in saying that you aren't "overclocking properly" you are referring to the fact that you are overclocking in AMD Overdrive.

Find a good Phenom II Overclocking tutorial and do it properly, step by step and taking your time through the bios. Anything less is asking for trouble.
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post #17 of 36
Thread Starter 
Quote:
Originally Posted by willibj View Post
Please tell me that in saying that you aren't "overclocking properly" you are referring to the fact that you are overclocking in AMD Overdrive.
Exactly.
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post #18 of 36
Quote:
Originally Posted by Mobius01 View Post
Exactly.
haha good to know. Well take my advice above. You are seriously under-performing right now, even assuming your PC is stock and you should work that out before investing more moneys.

Reinstall ... new drivers ... benchmark at stock. If you are doubling your frame rates, all is good and you should go and overclock properly then watch your frames soar again.

If you are getting the same frames again, check back in here ...
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post #19 of 36
Thread Starter 
I've done a fresh install of Win7.

I'm now getting 30-40fps with Crysis Warhead on Enthusiast settings @ 1920x1080, 8xAA.

Far Cry 2, Mass Effect 1 & 2, Bioshock 1 & 2, New Vegas, Mafia II, DIRT2 (Ultra), STALKER games - all running @ 80+fps with max settings.

Can you recommend a good OC tutorial?
Edited by Mobius01 - 1/13/11 at 12:15pm
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post #20 of 36
Quote:
Originally Posted by Mobius01 View Post
I've done a fresh install of Win7.

I'm now getting 30-40fps with Crysis Warhead on Enthusiast settings @ 1920x1080, 8xAA.

Far Cry 2, Mass Effect 1 & 2, Bioshock 1 & 2, New Vegas, Mafia II, DIRT2 (Ultra), STALKER games - all running @ 80+fps with max settings.

Can you recommend a good OC tutorial?
AH HA! SUCCESS !!!

That's MUCH more like it Fun right? haha, pretty, fluid graphics just tickle my fancy, it helps the immersion and continuously invokes and reaffirms my interest and attention span. I haven't much time for games these days, and just like with women in real life, attraction, depth and gameplay all factor into decision making haha

Okay - overclocking tutorial ... I wrote this for someone else the other day, should be a good starting point:

Firstly turn your RAM and Northbridge multipliers back to the next lowest setting.

Up the bus speed (probably called CPU Freq in a gigabyte bios) by maybe 5 or 10 points at a time. Notice that your CPU speed is increasing, along with RAM/NB (which are underclocked for the moment)

Boot up into windows and run Hardware Monitor to check temps, and Prime95 SmallFFT for 10 mins or so. If all is well, increase CPU Freq/Bus speed again by 5 or 10 more.

When windows doesn't boot, or Prime95 fails, or you blue-screen, go back into the bios and increase the CPU voltage. Test again, and re-run Prime. (At this point it is worth knowing how to reset your CMOS - it can be as simple as unplugging your PSU for 10 seconds, or removing the circle battery on your motherboard for a minute, and is required when you input settings without the voltage required and you have to return to stock settings. Remember where in the process and with what settings you were at, so you can repeat them just with higher voltage)

Repeat.

Continue until your CPU temps are hitting 55 degrees or you hit 220 CPU Freq/Bus Speed (which is a safe max to aim for).

Once you can run Prime FFT for longer (up to an hour), and assuming your temps stay below 60degrees (they will climb slowly with time), you can then move onto your NB.

Using the same method, first increase your NB multiplier back to stock levels, but with your bus speed increase you will be slightly overclocked. Repeat the Prime95 method but run Blend test now instead of Small FFT.

Repeat the same method to test, upping the CPU-NB voltage (to a max of 1.4 for your CPU/MB) whenever Prime fails, aiming to get your Northbridge multiplier to 11x from 10x(stock). You may have to up the NB voltage (separate from the CPU-NB volts) by +.1, though this might not be necessary.

You should reach my previous estimates this way easily and safely, just watch your temps during Prime95 and make sure to stay below 62 degrees for safety.

Remember that Prime95 is 100% MAXIMUM stress testing - your system will never use that much in normal operation so if you hit the temperature maximum during testing, back off only slightly then know that normal use will find your max temp at least 3 degrees less than your Prime95 max.

After all of this you will need to deal with your RAM which is probably still slightly underclocked, but probably running with a bus speed too high to move back to the higher multiplier (which will cause a high overclock).

In this situation I find it easiest and best to simply tighten the timings instead. There are instructions on google for that, but basically you can tighten timings one at a time, running Prime95 blend to check stability, and keep tightening until you get to the best settings whilst leaving everything else at stock.
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