17 replies to this topic

[emperor496]

Hi,

 

I am currently OC'ing my ci7 920, with gigabyte x58 ud4p & corsair dominator ddr3-1600. I have reach 4.0GHz (200x20). It does boot to OS, but crash after few seconds with IntelTestBurn. Liquid cooled, max temp under load 90degC. (still 1 more fan can be installed on the rad)

 

Right now I'm running 190x20 only. Hoping to go at least 200x20.

 

These are my settings:

 

190x20

CPU Ratio Setting: 20.0
BCLK Freq: 200
PCIE Freq: 102
DRAM Freq: DDR3-1600MHz
UCLK Freq: 3600MHz
API Link Data Rate: Auto

CPU Voltage: 1.30v
CPU PLL Voltage: 1.80v
QPI/DRAM Core Voltage: 1.34v
IOH Voltage: 1.11
ICH Voltage: Auto
DRAM Voltage: 1.66v

 

I have increase the Vcore to 1.40v(200x20), still crash.

While doing test on how high my bclock can go (stabil), I am able to reach 210MHz with QPI/VTT 1.34v.

Highest memory stabil clock 1680MHz with DRAM voltage 1.66v.

 

Have I reach the limit?

what else can I do?

 

thanks

[IVIYTH0S]

did you lower the memory down while you were overclocking the 920?

[emperor496]

did you lower the memory down while you were overclocking the 920?

 

you mean lower to 1066mhz? yes I did..

[olokul]

Once you get into the 4ghz range you neet to start uping your voltage a lot more....  BUT  your saying your cpu is already hitting 90*c, that is not good.   You need to keep your temps down in the mid 70's, 80*c is the highest i would go.

 

 

Also drop your PCIE Freq back down to 100, there is no need to overclock this and most time it will cause issues.

 

As for ram just because your ram might be 8-8-8-24 @ 1600mhz (just a guess) doesnt mean it will run overclocked at those timmings.    to get over you the 1680mhz hump you might have to up/loosen your timmings.

 

next thing i noticed is the 200x20.  stick to a odd multiplier,  95% of the of the i7's ive seen dont like even multipiers when overclocking.

[aaron6581230]

Your ud4p should have a permanent turbo mode. Leave turbo on and it should run at 21x multiplier at all times.

Otherwise, overclock one thing at a time. Given the fact that the memory controller is on the CPU die, you're going to want to keep your memory at stock when overclocking the CPU and upping it later

[emperor496]

Your ud4p should have a permanent turbo mode. Leave turbo on and it should run at 21x multiplier at all times.

Otherwise, overclock one thing at a time. Given the fact that the memory controller is on the CPU die, you're going to want to keep your memory at stock when overclocking the CPU and upping it later

 

I did enable turbo mode, but it run buy multiplier 20x on idle.. sometime 21x. Do you mean put the memory on it's stock speed 1600mhz?

 

I start by ramp-up the bclock the see how high my memory can go.. highest I get is 1680mhz..

[hornybluecow]

an easy way to get 4ghz with stock voltage is just drop your multi to 19x and raise your BLCK to 200. When I had an 920 20x multi never worked for me, always had to drop it.

 

 

CPU Ratio Setting: 19.0
BCLK Freq: 200
PCIE Freq: 100
DRAM Freq: DDR3-1600MHz
UCLK Freq: 3600MHz
API Link Data Rate: Auto

 

if you raise the UCLK it will rise the DRAM with it so recheck what it's at now. It may say 1600 but when you click on it, it won't be. probly at 1800 or higher if you started at 1600. try starting at 1066 and than changing the ULCK to 3600.

 

edit: turn off turbo and speed specturm and idle (C State) so it will boot at 4ghz instead idleing than crashing with you stress it to 4.

Edited by hornybluecow, 21 January 2013 - 10:53 AM.

[emperor496]

an easy way to get 4ghz with stock voltage is just drop your multi to 19x and raise your BLCK to 200. When I had an 920 20x multi never worked for me, always had to drop it.

 

 

CPU Ratio Setting: 19.0
BCLK Freq: 200
PCIE Freq: 100
DRAM Freq: DDR3-1600MHz
UCLK Freq: 3600MHz
API Link Data Rate: Auto

 

if you raise the UCLK it will rise the DRAM with it so recheck what it's at now. It may say 1600 but when you click on it, it won't be. probly at 1800 or higher if you started at 1600. try starting at 1066 and than changing the ULCK to 3600.

 

edit: turn off turbo and speed specturm and idle (C State) so it will boot at 4ghz instead idleing than crashing with you stress it to 4.

 

I started form 1066, now it's at 1600..

will try you're suggestion.. how much Vcore & QPI/VTT you had on your 920?

[hornybluecow]

oh i duno anymore,I could look for my log sheets when i wrote down the settings. I remember with stock voltages (everything) i was able to get to 3.9ghz. 19x + BLCK like 190 or something 

[olokul]

Hi,

 

I am currently OC'ing my ci7 920, with gigabyte x58 ud4p & corsair dominator ddr3-1600. I have reach 4.0GHz (200x20). It does boot to OS, but crash after few seconds with IntelTestBurn. Liquid cooled, max temp under load 90degC. (still 1 more fan can be installed on the rad)

 

Right now I'm running 190x20 only. Hoping to go at least 200x20.

 

These are my settings:

 

190x20

CPU Ratio Setting: 20.0
BCLK Freq: 200
PCIE Freq: 102
DRAM Freq: DDR3-1600MHz
UCLK Freq: 3600MHz
API Link Data Rate: Auto

CPU Voltage: 1.30v
CPU PLL Voltage: 1.80v
QPI/DRAM Core Voltage: 1.34v
IOH Voltage: 1.11
ICH Voltage: Auto
DRAM Voltage: 1.66v

 

I have increase the Vcore to 1.40v(200x20), still crash.

While doing test on how high my bclock can go (stabil), I am able to reach 210MHz with QPI/VTT 1.34v.

Highest memory stabil clock 1680MHz with DRAM voltage 1.66v.

 

Have I reach the limit?

what else can I do?

 

thanks

to get you in the ballpark

 

21x195 will net you 4.095ghz

cpu volt 1.30-.33v

qpi 1.30v

 

PLEASE watch your temps,  like i stated before you are already saying that your hitting 90*c you may not have a good overclcoking 920.

 

once you set that in the bios change your ram speed back close to 1600mhz   Could you please state what the timmings are on your ram,  I tried to look up your ram but can only guess what the timmings are. from what i could deduct they are 8-8-8-24 @1600mhz     to get over your 1680mhz problem you might have to open them up to 9-9-9-24.    

 

 

this thread is also a nice read

http://forums.overcl...howtopic=194115

or

http://forums.overcl...howtopic=161432

Edited by olokul, 21 January 2013 - 05:02 PM.

[emperor496]

 

Hi,

 

I am currently OC'ing my ci7 920, with gigabyte x58 ud4p & corsair dominator ddr3-1600. I have reach 4.0GHz (200x20). It does boot to OS, but crash after few seconds with IntelTestBurn. Liquid cooled, max temp under load 90degC. (still 1 more fan can be installed on the rad)

 

Right now I'm running 190x20 only. Hoping to go at least 200x20.

 

These are my settings:

 

190x20

CPU Ratio Setting: 20.0
BCLK Freq: 200
PCIE Freq: 102
DRAM Freq: DDR3-1600MHz
UCLK Freq: 3600MHz
API Link Data Rate: Auto

CPU Voltage: 1.30v
CPU PLL Voltage: 1.80v
QPI/DRAM Core Voltage: 1.34v
IOH Voltage: 1.11
ICH Voltage: Auto
DRAM Voltage: 1.66v

 

I have increase the Vcore to 1.40v(200x20), still crash.

While doing test on how high my bclock can go (stabil), I am able to reach 210MHz with QPI/VTT 1.34v.

Highest memory stabil clock 1680MHz with DRAM voltage 1.66v.

 

Have I reach the limit?

what else can I do?

 

thanks

to get you in the ballpark

 

21x195 will net you 4.095ghz

cpu volt 1.30-.33v

qpi 1.30v

 

PLEASE watch your temps,  like i stated before you are already saying that your hitting 90*c you may not have a good overclcoking 920.

 

once you set that in the bios change your ram speed back close to 1600mhz   Could you please state what the timmings are on your ram,  I tried to look up your ram but can only guess what the timmings are. from what i could deduct they are 8-8-8-24 @1600mhz     to get over your 1680mhz problem you might have to open them up to 9-9-9-24.    

 

 

right now I am running 190x20.. timings are 10-11-11-29 @ 1600mhz (auto).. with SPD 8.0..

 

it pass inteltestburn with this setting, but sometimes it crash, sometime I got black screen after boot to windows.. if it's not stabil how can it pass inteltestburn..

[olokul]

Don't run a 20 multiplier. Ether do 21 if you can or 19. They really don't like even multipliers.