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nvidia chipset vs. intel

post #1 of 6
Thread Starter 
I am a noob to overclocking but I can safely say that I am currently HOOKED to this wonderful pastime/hobby. However, I have come across some problems and I am wondering whether anyone else has experienced similar problems using nvidia chipsets as opposed to intel ones.

My system:
Mobo: 790i ultra/asus striker II extreme
cpu: intel qx9650
Ram: ddr3/corsair/1333mhz - currently at 1300mhz (unlinked)
cooling: air (unsure as to brand)
gpu: 2 nvidia 9800gx2 (sli enabled)

I have managed after many efforts (and a lot of crashes) to oc the cpu to 3.9 mhz.

I have however had to decrease the FSB to 320 (1300) and increase the multiplier to 12 and unfortunately I also have had to increase the cpu voltage considerably to over 1.42 v. in the bios (which comes to about 1.37v-1.38v after vdroop in cpu-z), in order to make it stable. This voltage is over intel's recommended 1.3625v and also as a consequence the cpus produce a lot of heat under stress (70c-71c sometimes, especially under OCCT but not so much under Prime95).

This doesn't reflect what I have been reading in the forums about the qx9650.

A lot of people have managed to oc this baby to 4ghz on air cooling alone without any problems and without exceeding Intel's recommended voltage or heat limits.

I am wondering whether this is due to the 790i? Do Intel chipsets oc more easily than nvidia's and if indeed this is the case, why is this...err...the case?

Has anybody else experienced similar problems? Does anybody have any suggestions how to bring th vcore voltage down?


Thanks


P.S. I have increased the other mobo voltages as well (all except the memory) but this doesn't seem to change the fact that my cpu needs a lot of juice in order to remain stable.
post #2 of 6
yes yes and yes,imo
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The little beast
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post #3 of 6
SLI - Nvidia
No SLI - Intel chipped board


even though my nvidia board is a great OC'r, if your looking for max cpu OC nvidia isnt the way to go, if your looking for best game performance SLI FTW!
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post #4 of 6
Har har, don't try the RAID controller on your board unless you hate your HDDs.

nVidia are getting better though.
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post #5 of 6
Thread Starter 
Thanks for the responses,I do appreciate them.

The problem with this theory however is that according to some articles and reviews (see for instance, http://www.anandtech.com/mb/showdoc.aspx?i=3283),

the n790i should be kicking Intel's butt. However, it evidently isn't in my case and I was wondering if this is something to do with the mobo or something else that I am doing wrong.


Thanks
post #6 of 6
Quote:
Originally Posted by MomijiTMO View Post
Har har, don't try the RAID controller on your board unless you hate your HDDs.

nVidia are getting better though.
I will trade my system performance for a RAID config..... seeing as how I have never ran RAID its an easy choice.

but if it wasnt for the fact that i wanted to run a SLI setup, I woulda gotten an X38 DS4 Giga board
The Money Pit
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Hard DriveHard DriveOptical DriveCooling
120GB Vertex Plus 2 x 500GB WD Blues RAID0 Lite-On DVD/CD Custom H20 Loop 
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The Money Pit
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Hard DriveHard DriveOptical DriveCooling
120GB Vertex Plus 2 x 500GB WD Blues RAID0 Lite-On DVD/CD Custom H20 Loop 
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Win 7 Ulti-64 25" I-Inc iH253 Antec TruePower New TP-750 CoolerMaster HAF 932 
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