Core i7/X58 Overclocking Thread

[abe_1990]

hey guys, im new here. Im having a problem with my new system. Ill just quickly post up my system:

W3520 Oc'd to 4ghz at 1.25v
Gigabyte UD5
MSI 275GTX
Patriot ddr3 6gb 1600
WD 1tb caviar black
Win7 RC

The problem I am having is that it randomly freezes in windows, while idling. I left my comp for 10 mins, came back and it froze. It also happened while i was playing COD4 online, it just randomly rebooted. However im not sure if its a win7 problem, or a problem with my overclock. The thing is, i ran IntelBurnTest for 5 loops and it came out stable! I also ran Prime95 for 30mins (i know i should run it for a few hours) and it was still fine.

So im not sure why leaving my comp idling or playing COD4 online would cause my comp to freeze/reboot, while stressing my CPU at 100% load was fine with no issues at all.

[Sam_oslo]

hey guys, im new here. Im having a problem with my new system. Ill just quickly post up my system:

W3520 Oc'd to 4ghz at 1.25v
Gigabyte UD5
MSI 275GTX
Patriot ddr3 6gb 1600
WD 1tb caviar black
Win7 RC

The problem I am having is that it randomly freezes in windows, while idling. I left my comp for 10 mins, came back and it froze. It also happened while i was playing COD4 online, it just randomly rebooted. However im not sure if its a win7 problem, or a problem with my overclock. The thing is, i ran IntelBurnTest for 5 loops and it came out stable! I also ran Prime95 for 30mins (i know i should run it for a few hours) and it was still fine.

So im not sure why leaving my comp idling or playing COD4 online would cause my comp to freeze/reboot, while stressing my CPU at 100% load was fine with no issues at all.

W3520 is running rock solid @4GHZ 1.15v with no problems here .

It could be your RAM too, what kind of Dvider/timin and vdimm are you using. Did you run any Prime-Belnd, or memtest too?

[abe_1990]

W3520 is running rock solid @4GHZ 1.15v with no problems here .

It could be your RAM too, what kind of Dvider/timin and vdimm are you using. Did you run any Prime-Belnd, or memtest too?

wow 1.15v!, wat temps are u getting? Im actually a noob at OC'ing, so dont know all these terms etc. but my ram is at 1530mhz at 8-8-8-24 with 1.64v, if that is what you are asking?

No i havent ran memtest yet. ATM im running prime-blend test, 2hours into it, and still going strong.

[JPQY]

When your system freezes most off the time to low vcore,dram voltage or Qpi/dram core volt.
The first two looks good so how much is your Qpi/Dram Core Volt.
What cooling you using.. your temps!
Your power supply(psu)..i think must be strong enough.
Is your C-State Tech Enabled? this can make it unstable when using higher overclocks -> So Disabled it!
and so on..so we need all your settings to help you!

And guys i still need results from a W3520 for my list who give it a try
http://www.xtremesystems.org/forums/...d.php?t=202139
Or any new cpu i'am missing!!

JP.

[abe_1990]

When your system freezes most off the time to low vcore,dram voltage or Qpi/dram core volt.
The first two looks good so how much is your Qpi/Dram Core Volt.
What cooling you using.. your temps!
Your power supply(psu)..i think must be strong enough.
Is your C-State Tech Enabled? this can make it unstable when using higher overclocks -> So Disabled it!
and so on..so we need all your settings to help you!

And guys i still need results from a W3520 for my list who give it a try
http://www.xtremesystems.org/forums/...d.php?t=202139
Or any new cpu i'am missing!!

JP.

My Qpi/dram is at 1.35, is that too high? Im on air cooling, using a TRUE with 2 x scythe ultra kaze 2000rpm fans in push /pull setup. idle i get around 38-40c, and load with prime in get 77-80c max. My PSU is a 850w toughpower, so this should be adequate power for my OC?

These are some of the stuff i have disabled / enabled in my bios

Advanced CPU Features:
CPU Clock Ratio ................................ [20x]
Intel(R) Turbo Boost Tech .................. [Enabled]
CPU Cores Enabled ............................ [All]
CPU Multi Threading .......................... [Enabled]
CPU Enhanced Halt (C1E) ................... [disabled]
C3/C6/C7 State Support .................... [disabled]
CPU Thermal Monitor ......................... [disabled]
CPU EIST Function ............................ [Enabled] <--should i have this disabled?
Virtualization Technology ................... [disabled]
Bi-Directional PROCHOT ..................... [disabled]

[JPQY]

CPU EIST Function ............................ [Enabled] <--should i have this disabled?

Yes...Disabled it..sure when you do high overclocks..system will be more stable!

I have send you a PM.

[Anth Seebel]

single stage 3d action..

[jooney]

Water action

[rge]

Nice chip jooney. 4.5 with 1.27 vcore load and 1.27 Vtt, probably the best chip I have seen. Makes we want a Xeon.

[jooney]

Yes measured with MM it was 1,265-1,266 VCore and E-LEET shows 0,025 VTT to much so it is measured around 1,25

[roller11]

squeezed two more Bclks out of my batch 3845B027, #1 on HWbot
http://valid.canardpc.com/show_oc.php?id=587080

[Anth Seebel]

Nice clocks dude , any HT / Tri channel / 3d results ?

[jcniest5]

squeezed two more Bclks out of my batch 3845B027, #1 on HWbot
http://valid.canardpc.com/show_oc.php?id=587080

Been hunting for that elusive batch for weeks now. No sight of it whatsoever.

[roller11]

Nice clocks dude , any HT / Tri channel / 3d results ?

I needed two sticks of RAM in another computer, but
Tri channel tested up to 251.21, no difference so I have no reason to think 3 sticks would limit my max OC.

I was on a 3Dmark06 run when I ran out of DICE, so no new 3D screens.
I got these 3D/2D screens a couple weeks ago when I was stuck at 251x21 .

http://img46.imageshack.us/img46/4667/3dm065006.jpg
http://img46.imageshack.us/img46/9411/5195supi.jpg

and the obligatory pic of my setup:
http://img13.imageshack.us/img13/2346/034nxh.jpg

[Anth Seebel]

ah k , made your on pot..WD..

i cant find my camera battery charger , when i do il post up some pics of my setup..

[aoch88]

OMG, this is an awesome clock!! 4.5Ghz with such low volts and best of all, it's stable for 24/7.

[cadupradoo]

Nice clocks and temps jooney.. I hope I can get good temps like that with the Heat killer that is about to come... with a lower oc, of course, that's outrageous!

Is the xeon's cpu vtt 1.2V at stock?

[FabricioGS]

Guys, need some advice here. I thing I got a "not so good" 920 C0/C1.

My max stable OC is this:

C1E: OFF
HT Tech: ON
CPU cores: ALL

HT: Off
Intel Speedstep Tech: OFF
Multi: 21x
Bclk: 200
QPI-Links: Full
Uncore: 3200
QPI: 3600
DRAM Speed: 1600 @ 9-8-8-22 1.60v

Vcore: +0.180 (1.456v @ CPUz)
VTT: 1.56v (1.504v after drop according to bios)
PLL: 1.80
VNB: 1.150v
SB: 1.50v
QPI/PCIE PLL: 1.190v

I this VTT ok for 24/7? With less then this system crashes on Linx. For 4GHz (20x200), I need the same settings, just with a little less vcore.

For 19x210 I also need a lot of VTT. I know it's not a D0, but is it safe using this on an air cooler?

[phsinc1]

I think 1.504 VTT is too high and not safe for 24/7

[FabricioGS]

=S How much would be safe for 24/7 then? Up to 1.45v?

[phsinc1]

Yes I would say your max safe 1.45v, I saw some people using 1.45v VTT/QPI fine but myself I won't go above 1.40v

Also according to Intel the max safe is 1.35v

[sodina]

so the general trend is ht off and turbo on??

[Brad8988]

HT on and Turbo on!

[JakFrost]

The best that I can do for my chip is 3.60 GHz at 1.20 V with 81C peak temps by doing BCLK 180 and Multi 20x on air cooling Xigmatek HDT-1284EE.

HardOCP Forum - Overclocking Air: Intel i7 920, Asus P6T, G.Skill DDR3-1600 C8, Xigmatek HDT-1284E

I can't push BCLK to 185+ without going above 1.25 V and that is my voltage thermal maximum limit since it hits a peak of 94 C at this voltage doing Prime95 Blend test, and this peak is 6 C to 100 C CPU temperature max. I tried CPU and QPI voltage increase to 1.275V, 1.30V, and 1.35 V temporarily but the system freezes at any BLCK from 185-200 within minutes. I can't push the voltage higher since my air can't handle the thermals above CPU 1.25 V. My system is stable at BCLK 180 with 1.20 V so I use this lower voltage to keep my thermals down to ~80C peak during stress testing.

I can't get to 3.78 GHz by Multi 21x and BCLK 180 since even when Turbo is disabled and Multi is set manually to 21x the Turbo kicks in to 22x Multi and blue screening my system randomly.

I'm stuck at 20x highest Multi and 19x is useless since I can't push BCLK higher than 180. I've tried slower memory ratios, CPU PLL bump from 1.80 V to 1.90 V, DRAM 1.60 V to 1.64 V, nothing works except as I'm guessing more CPU voltage and I can't go higher than 1.25 V on this cooling.




Intel Core i7 920 2.66 GHz D0, Asus P6T 0603, G.Skill 6GB DDR3-1600 C8 2T, Xigmatek HDT-1284EE - CPU 3.6 GHz (180 x 20) 1.20 V, DRAM 720 Mhz 2:8 8-8-8-21 2T 1.60 V, QPI 1.2125 V - Prime95 Blend Stable 9-Hour+ 80C Peak





MOB: ASUS P6T, LGA 1366, Intel X58 ICH10R, 3 SLI, 6 DIMM, 6 SATA - FW: 0603, AiTweaker XMP, Turbo Off, HT On, SpeedStep On, C-Step On, (Settings) Auto
CPU: Intel Core i7 920, 2.66 GHz, 4C, 8 MB, 4.80 GT/s QPI, 45nm, 130 W, D0 (SLBEJ) 3901A238 - 3.60 GHz, BCLK 180, Multi 20, CPU 1.20 V (Manual), QPI 1.21250 (Auto)
FAN: Xigmatek HDT-1284EE 120mm Hydro Bearing Fan 800-1500 RPM 4 Heatpipes - 41 C Idle, 81 C Load
RAM: G.Skill 6gb (3 x 2 GB) DDR3 1600 (PC3 12800) 8-8-8-21 2T 1.60 V - XMP Profile 1, Ratio 2:8, Frequency 720 MHz (1,440 MHz), DRAM 1.60 V

VID: eVGA nVidia GTX 260 896 MB G92 192c 576/999 MHz PCI-e 2.0 16x 2xDVI 1xSVid 1xHDTV - 600/1100 MHz, DVI to LCD, HDMI 60' to 50" Plasma TV.
CAP: AverMedia AVerTV Combo PCI-e M780R ATSC/NTSC Capture MPEG-2 Hardware Encoder - MCE Remote, IR Receiver

CAS: Lian-Li PC-V1200 Plus Mid-ATX Aluminum 4x5.25 6x3.5 2x120mm - Best case to date in my opinion.
POW: OCZ PowerStream 520W SLI ADJ ATX2.0 EPS12, +3.3V 28A +5V 40A +12V 33A

SSD: Intel X25-M 80GB MLC SSD SATA II 3 GB/s - FW: 8820
HDD: Western Digital Caviar SE16 500 GB WD5000AAKS 16 MB SATA-II - (4) in (2) RAID-1 (Mirror) Arrays

ENC: MacAlly G-S350SU External HDD Enclosure 3.5" eSATA USB 2.0 Aluminum, Universal 12V Adapter - (2) external WD GP 1TB for Movies
ENC: i-Rocks 9410 External HDD Enclosure 3.5" eSATA USB 2.0 Aluminum, Univeral 12V Adapter - (2) external WD GP 1TB for Backups
HDD: Western Digital Caviar GP Green 1 TB WD10EACS 16 MB SATA-II - (2) external Movies, (2) external for Backups

CON: JMicron JMB363 PATA and SATA Controller, PCIe 1x, 1 PATA, 1 SATA, NCQ, Hotplug, RAID 0,1,0+1,JBOD
CON: JMicron JMB322 SATA II 3 GB/s Controller, PCIe 1x, 2 SATA, NCQ, Hotplug, RAID 0,1,JBOD
NIC: Realtek 8111C PCIe GigE
SOU: Realtek ALC1200 8 channel, HD Audio, Coax/Opt S/PDIF - Analog for Speakers, Motherboard Digital S/PDIF to nVidia GTX 260 S/PDIF for DVI->HDMI

DVD: NEC ND-3550A 16x DVD+-RW SL/DL 48X CDR PATA - FW: 1.07
BLU: LG GGW-H20L Blu-ray 6x BD-RE 16x DVD SL/DL 48x CDR SATA - FW: YL05

MON: HP LP2475w 24-inch LCD H-IPS Monitor Wide Gamut 102% NTSC 6-12ms Response - 1920x1200x32 60Hz, DVI, GIG122/GIG052, Bri 15, Con 80, 9300K
KBD: Microsoft Natural Keyboard Pro USB/PS2 Media Keys
MOU: Microsoft IntelliMouse Explorer 3.0 Optical USB/PS2 Scroll-Wheel 5-Button
JOY: CH Products Fighterstick USB 3 axes 24 buttons
THR: CH Products Pro Throttle USB 3 axes 24 buttons
PED: CH Products Pro Pedals USB 3 axes

ROU: Linksys BEFSR81 EtherFast Cable/DSL Router 8-port Switch 100MBps FW: 2.51.3

OSS: Microsoft Windows 7 Release Candidate Build 7100

[Wadkiller]

WTF do you live? in hell? How high is your ambient temps to get such high load temps only @ 3.6GHz with such a low vcore?

Try reseating your heatsink.