all right my new D0 and seems to be like a keeper.

Everything in the bios on auto with the exception of Memory Timings and Memory voltages...

Screename: killer_hz  
Batch #: 3949A372
CPU clocked at: 4001 (190.5 x 21)
Voltage: 1.18
Idle temps: 37/36/38/35
Load temps:  65/63/63/60
HT on / 6GB RAM @ 7-7-7-21-1T 1538MHz

CKY2K

killer_hz, Nice volts around.

yes they are and i am impressed. my C0 took 1.30 for these clocks and temps were 81c with the same cooler. i am just glad for the evga forums and the informtion posted all over to get me this far...

First crack at 4 GHz:

Core i7 920 D0 @ 4.001GHz (191x21)
Voltage: 1.35V with VDroop (1.317 under load)
Idle temps: 41/41/40/38
Load temps: 80/80/75/75
HT ON
6GB RAM 8-8-8-23-70-1T

NighthawkF22
Core i7 (950)   Batch #:  3910A594
CPU clocked at:  4750MHZ (HT OFF)
Voltage:  1.4875 (w/droop)
Idle temps:  48 44 48 44  (ambient temp in room is bad)
Load temps: 68 66 66 63

Bios template for this OC can be found at this thread for those interested: http://forums.evga.com/tm.aspx?m=179016

Pics of my rig can be found here: http://s741.photobucket.com/albums/xx59/NighthawkF22/Watercooled%20Build/

Hopefully the Everest shot will be sufficient.  For some reason CPU-Z still has a problem reading the multiplier for the 950, I have Speedstep and CxE both disabled (and have tried everything else I could think of), but it always shows a 12x multi, even under load.  I posted under the E-Leet forum and no one had any ideas unfortunately.  Everest reports my speed properly.

Here's the main issues I ran into and what I did to fix them, hopefully this will help someone else that runs into them and if I remember more I'll add them later:

1. Regarding Vcore - It seems that, in some cases, far less Vcore is needed to pass Linx than Prime95.  When I was @4500MHZ, I was able to pass Linx using the above template with a Vcore @ 1.3.  Prime ran for about 8 hours at the same Vcore, about 10 minutes around the 1.35 range, before being 24 hours stable @ 1.4.  For 4750MHZ I had posting issues for any vcore below 1.4875 so I couldn't replicate the same problem at this speed.  Also, one of the biggest things that had me banging my head was that I was 24 hrs prime and 50 passes linx stable @ 4800MHZ at the same 1.4875 Vcore, but once every 10-20 reboots I would hang at POST with just a piece of the "blue ribbon" graphic showing.  Once I bumped up the Vcore to 1.5 this went away, and since 1.4875 was the max I wanted to run at I dialed the OC down a tad instead.  I tried tinkering with all the other voltages, especially IOH, but this seemed to be tied to only the Vcore.
2. Don't loosen RAM too much - I dropped my RAM timings to 11-11-11-31 (stock is 7-8-7-20) which was too far and probably responsible for a majority of my Prime95 headaches (Linx never had issues).  Loosening them to 8-9-8-24 gave no problems.
3. Only give as much voltage to Vdimm as necessary.  Another big part of my Prime95 headaches.  When I initially started I new my temps were cool so I took the approach of determining what were the max voltages I'd be OK with running at and then finding the maximum stable speed for that voltage.  For Vdimm, big mistake.  I started @ 1.65v (with loosened timings) and had no problems with Linx, but Prime would always fail after a few hours.  Once I lowered it to 1.5v things were fine.
4. QPI Signal Compensation and CPU Impedence had the biggest impact on my stability.  In fact, I had slightly raised most of the other voltages in trying to get the system stable, and it wasn't until I reduced them back to their defaults (while leaving QPI SC at "middle" and Impedence at "less") that it became so.  After the voltages were back at their defaults and things were stable, changing either of these settings seemed to impact things.

This has been a much longer process than I anticipated due to problems with poorly designed GTX285 V2 EK Waterblocks which fried one of my cards, as well as the fact this thing was a bit harder to OC than I anticipated, but after many months I am finally done 

Core i7 920 D0 Batch: N/A
CPU clocked at: 4210.65 MHz 
Voltage: Idle 1.3430 / Load 1.352 WO/Droop 
CPU Host Frequency (Mhz) 201 
Idle temps: 39,38,39,36 
Load temps: 66,69,68,61 
HT & Turbo on

Direct link to my pic
http://i431.photobucket.c...ervolts4200ghzevga.jpg
CPU-Z  http://valid.canardpc.com/show_oc.php?id=1089670

Core i7 920 D0 Batch: N/A
CPU clocked at: 4009.8 MHz 
Voltage: Idle 1.28v WO/Droop 
CPU Host Frequency (Mhz) 201 
HT On & Turbo Off

Continue to push, make it to 4.5Ghz this time :D

Screename: iTravis  

Batch #: 3912B168 
Core i7 920@ 4524.9 (216 x 21) 
Voltage: 1.54375
Idle temps: 43/39/41/37
Load temps:  84/83/78/77
HT off / 6GB RAM @ 8-8-8-24 1T

I guess this run got lost a couple of months ago in this thread....so if no one minds I'll post again, Thanks
w3570 @4.325 wHT  batch# 3847A696
voltages >cpu 1.31 cpu pll 1.60 IOHcore 1.2 cpu vtt 1.30
Temps > idle  38,38,28,36
 load > 71,72,69,68  

custombuiltcomputers 
Core i7-980x Batch #:3003957   
CPU clocked at: 5.027          
Voltage: 1.62v no vdroop / VTT +300  
Idle temps: -20      
Load temps: 11,31,9
i7 980X
Here is a new record if anyone feels like updateing this thread.....

Not bad run for 1st run with linX

Core i7-920 D0 Batch #: 3946A172   
CPU clocked at: 4.2Ghz    (HT ON)     
Voltage: 1.265 / VTT +50  (W/O VDROOP)
Idle temps: 38,34,36,33      
Load temps: 69,65,65,64

Well, I think I found a winner here.  4.2Ghz (21x201) @ 1.268V and 1.25VTT.  Failed not once but twice near the end of the linX runs, had to up IOH to 1.2 and... applesauce.  Looks like 4.4 or 4.5 might be possible with this one.

[link=http://img260.imageshack.us/img260/3267/90935493.jpg][/link]



Core i7 920 Batch #: 3950A530
CPU clocked at: 4010 MHz
Voltage: 1.258 with vdroop enabled
Idle temps: 41,40,40,39
Load temps: 73,71,69,69

SimC33

jdookie

So, is there going to be separate section for the 980X??

Opinions on this? 


BESIDES an update...lol....would yall like to see this added as well?

UPDATE!  I need that 3rd spot back!

2slick4u
Core i7: 920 D0 Batch #: 3950A530  
Cpu Clock 4010.2 MHz 
Voltage: 1.28125  
Idle temps: 43/42/45/40 
Load temps: 77/74/74/72 
HT ON TURBO OFF

jvwilson101
Core i7 Batch#: 3938B024
CPU Clocked At: 4001.1 MHz
Voltage: 1.294 W/ out Vdroop
Idle Temps: 36, 34, 36, 31
Load Temps:87, 86, 82, 80



 
 

To SimC33 and forums members: Here is my second post for HT OFF

Core i7: 920 DO Batch# 3937A806
Clocked at 4210.6
Voltage: 1.425
Idle Temps: 42, 40, 44, 38
Load Temps: 86, 84, 82, 80
HT OFF