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i7 950 - Can't get it over 3.6Ghz stable

Arthur Hucksake

Arthur Hucksake

Arthur Hucksake

Soldato
Joined
14 Dec 2010
Posts
3,030
Location
Nottingham
Heya...

Wondering if anyone could give me some pointers.

Recently upgraded my 6870's to a pair of 570 GTXs. Formatted, clean install.

Started getting BSODs. Usually off a cold boot. The errors all pointed towards nvidia display drivers. Got a couple of guys to go over the dump files.

Running Kombustor to test it out, would BSOD. Sometimes POST was a little slow too.

Dropped my 3.7Ghz overclock, back to stock and everything seems dandy again. Ran Kombustor for three hours straight in SLI mode, temps in mid 80s for both. (Going to add a new fan profile.)

I had a headache getting 3.7ghz to be what I thought was "stable".

Since the original build i've swapped motherboard out, even power supply to a beefier AX1200. The only thing remaining really are the CPU and the Corsair XMS 3 Ram. Not the Dominator or anything.

Any ideas?
 
You might want to post your overclock settings so that the expert overclockers in here will be able to tell you if something is amiss in there, such as bad multiplier etc...

The i7 950 stock is 3Ghz isn't it? I run my i7 920 @ stock, which is 2.66Ghz 99.9% of the time and speedwise it's very very nippy, so why would you feel the need to overclock?

**awaits shootings from forum** :p
 
I had trouble with XMS3 not liking my overclock, resulting in bluescreens on coldboot - replaced with dominators which are rock solid and run faster than I had the XMS3 as well. They are a fair bit more expensive but I had so much trouble trying to sort the XMS3 I was more than happy to upgrade.
 
Honestly? Just figured it was the "done thing" with these i7s. Been out of the loop for years before this build. Want to get the best performance out of the hardware.

It is stable at 3.6Ghz, that was the comfort zone before as I recall.

Previously was at 3.7Ghz and was having issues.

Current settings are:-

23x157 Multi , Vcore 1.24V , memory is running at 1570. 3610Mhz

Ram is currently running at XMP of 9-9-9-24-2T

Dram voltage 1.65v , QPI voltage is set to 1.35 by XMP.

QPI 2825

LLC was Enabled, HT enabled. Speedstep and other power saving modes disabled.

Just seems strange an extra 100mhz pushes it over the edge regardless of how much vcore I apply, unless the Ram is getting a bit hot?

Temps are low to mid 30s idle, most it's ever gone upto is 72C after 50 passes of Intel Burn Test which it passed previously. Before the new cards went in.
 
Rhodri2311 said:
I had trouble with XMS3 not liking my overclock, resulting in bluescreens on coldboot - replaced with dominators which are rock solid and run faster than I had the XMS3 as well. They are a fair bit more expensive but I had so much trouble trying to sort the XMS3 I was more than happy to upgrade.
Click to expand...

Seriously? Were the BSODs seemingly GPU related and what not at times?

Better get some Patriot Viper's ordered then.

Maybe the 570s just highlighted a problem that was being sugar coated for awhile. With any luck it's just a case of PEBKAC.
 
Last edited:
PC still stable at 3.6Ghz. Hmmm

Everything has been practically replaced inc motherboard & PSU since I originally had OC issues.

CPU or Ram left to troubleshoot I guess. Doh!
 
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