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[Official] MSI 790FX-GD70 Owners Club - Page 689

post #6881 of 9641
Quote:
Originally Posted by 69BBNova View Post
I'm not really up to speed on this board, but its possible your psu is the culprit...

The 1000HX is very fussy about which rails are used for the modular PCIe power cables...http://forum.corsair.com/v3/showthread.php?t=70317...this might help
Thanks man. I changed the rails around and so far no errors. Im an idiot too, I only connected only one 4 pin to the mobo cuz i replaced the psu 2 days ago and it only had one 4pin. So now it has the 8 pin connected and no problems except when i try to OC the cards in msi afterburner, ohh well no more errors for me. Thanks again.
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post #6882 of 9641
Hi first post looking for info. - great forum but so many pages could not find the answers I was looking for via search hope you all can help.

Question - Can I with 3-4890s run two in crossfire and the third non-crossfire?
I currently have two 4890s and have access to a third. I would like to run SoftTH for widescreen gaming with 3 monitors, however, SoftTh requires an additional graphics card that is not crossfired.

Additionally with the MSI 790FX will the 2 cards in crossfire run at 16x and the third run 8X or will it be all 8X lanes?

Than you , in advance.
Edited by h2kskull - 6/14/10 at 6:38pm
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post #6883 of 9641
Quote:
Originally Posted by h2kskull View Post
Hi first post looking for info. - great forum but so many pages could not find the answers I was looking for via search hope you all can help.

Question - Can I with 3-4890s run two in crossfire and the third non-crossfire?
I currently have two 4890s and have access to a third. I would like to run SoftTH for widescreen gaming with 3 monitors, however, SoftTh requires an additional graphics card that is not crossfired.

Additionally with the MSI 790FX will the 2 cards in crossfire run at 16x and the third run 8X or will it be all 8X lanes?

Than you , in advance.
I believe all will run at 8x, and sure you can choose not to Crossfire the card. Crossfire is done with a bridge connection AND enabling it in the BIOS. . so just dont use a bridge and make sure its disabled in the CCC (drivers) for the card you want out of the loop.
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post #6884 of 9641
Thanks. Any thoughts on performance hit from 16x to 8x with 2-4890s in crossfire on the MSI 790FX mobo? I have read several posts here and there and no solid conclusion on how much of a hit, or even if there is much of a hit for tri-fire?
thx
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post #6885 of 9641
1 gpu x16,2 gpu's x16 x16,3 gpu's x8 x16 x8,4 gpu's x8 x8 x8 x8.Hope this helps.

Performance between x16 and x8 not worth worrying about.
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post #6886 of 9641
less than 10% between 16x and 8x Ive read.
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post #6887 of 9641
alright so last week i posted on here about getting my voltage higher than 1.55 and was told to turn my cpu voltage up and fine tune it with the cpu voltage vdd so i did. reset and it didnt boot but the hdd led on my board was staying lit and the debugging led wasnt showing anything and the power and reset buttons dont respond. so basically im thinkin i fried it haha its really not a big deal but i just wanna hear what u guys think it is the board or the cpu basically i took my cpu out and everything looked fine the socket and the chip but i put the chip in my dads puter na socket am2 compaq and the cpu fan would strt for a half second or so then shut right off so i assume its the chip lol
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post #6888 of 9641
Quote:
Originally Posted by Bartleby3004 View Post
alright so last week i posted on here about getting my voltage higher than 1.55 and was told to turn my cpu voltage up and fine tune it with the cpu voltage vdd so i did. reset and it didnt boot but the hdd led on my board was staying lit and the debugging led wasnt showing anything and the power and reset buttons dont respond. so basically im thinkin i fried it haha its really not a big deal but i just wanna hear what u guys think it is the board or the cpu basically i took my cpu out and everything looked fine the socket and the chip but i put the chip in my dads puter na socket am2 compaq and the cpu fan would strt for a half second or so then shut right off so i assume its the chip lol
1.55 is the max vCore for Phenom IIs, why exactly were you trying to go higher? I wouldn't be surprised if your CPU is dead.
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post #6889 of 9641
Quote:
Originally Posted by Kokin View Post
So for people who go up to 3ghz NB-CPU, what voltage do you use for your NB-CPU voltage? Currently running it at 2700mhz with my CPU-NB @ 1.25V. Next multiplier is 3ghz, hence my question.

My previous settings would be in the 1.45-1.5V range, but that was also before I lowered everything else and I found out that I was running voltages way too high. (Thanks to Mastiffman! )
mines at 1.4volts for 3000.
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post #6890 of 9641
Quote:
Originally Posted by Kokin View Post
Still having problems using lower voltages for 3000NB, it looks like I need to increase my NB voltage up or else I'm unstable during gaming. It works for 1.42V CPU-NB, but I think I'm lacking with 1.2V NB, I end up BSoDing after a few mins of TF2. What do you guys use for you NB voltage with your CPU-NB @ 3ghz?
@ 1.4volts in the bios...shows 1.42 in windows.
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