CPU Overclock List & Discussion Thread

[topgear]

re: CPU Overclock List & Discussion Thread

@ithehappy

One thing... you are going to Void Warranty if anything bad goes while running OC .... They can easily tell that you have OC'ed ....

I strongly recommend you to run at stock for now.. Do some benchmarks and after a while do the OC.... Stock is enough for your monitor to run games pretty well...

+1

OC it after warranty expires or the card becomes obsolete.

OCing using software is safe I guess and there's no way someone will know if you've OCed or not

---------- Post added at 05:59 AM ---------- Previous post was at 05:58 AM ----------

Thanks. But I was searching elsewhere that if you don't change the Voltage then Temperature will remain same!

Thanks for your advice.

To you too.

That may be true by some extent but If you are going boost up the GPU clock to say 950 Mhz the temp will increase for sure.

 

[Skud]

re: CPU Overclock List & Discussion Thread

My humble OC @ 3.50 GHz from 2.80 GHz:-

CPU : Core 2 Duo E7400
Revision : R0
FSB X Multiplier : 333x10.5
Vcore Under Load : -
Vcore at idle status in windows : -
Vcore set in bios : 1.296V
Cooler : CoolerMaster Hyper N620
Additional notes If any : Successfully booted to desktop @ 343x10.5 with 1.328V and RAM at 1.82V. Not very stable at this moment though.

Motherboard : Gigabyte EP45-DS3R
Chipset : P45/ICH10R
Bios Version : F10 dated 22.09.2008
Additional notes if any : -

Ram : Kingston DDR2 800 Mhz
Latency : 6-6-6-18
Volt ( set in bios ) : 1.8V
Additional notes if any : -


OCCT did not complete showing errors. However, SuperPI run successfully. So is 3DMark Vantage. CPU score improved from 5068 to 5932. I don't know why but Speedfan didn't show any change in temperature during load. Temps for both the cores remains at 38-39, However, while OCCT run temps actually shot to 43-44. I am posting the screenshots. Please comment.

 

[topgear]

re: CPU Overclock List & Discussion Thread

set the Vcore to 1.325V and see if you can run OCCT without any errors at 3.5 Ghz and take the OC to 3.6 Ghz.

For temp monitoring use Realtemp - just leave it running at background while running OCCT cpu load test.

 

[asingh]

re: CPU Overclock List & Discussion Thread

Skud,

See the settings I used for your CPU.

*www.thinkdigit.com/forum/overclock...clock-list-discussion-thread.html#post1163450

Use RealTEMP for your temperature monitoring. I had it on an Hyper 212 at that time

 

[Skud]

re: CPU Overclock List & Discussion Thread

@ topgear

Thanks buddy. I can run OCCT successfully @ 3.50GHz with Vcore @ 1.325V. Vantage CPU score shots to 6300. Temperatures were also pretty good. Under load remains mostly at 43-44. Will do some more testings before further OCing. It looks like my RAMs are not doing well, anything above 800Mhz and there are problems. One query, although I have set the memory voltage to 1.80V at BIOS, it keep on increasing while testing. Is this normal?


@ asigh

I have already checked your settings before starting. Will try to go higher. May have to lower the RAM speeds. Lets see. For now, here's the screens:-


CPU-Z screens of CPU & Memory

*farm6.static.flickr.com/5226/5656708970_a167ca31ef.jpg

*farm6.static.flickr.com/5148/5656709054_3ba9f2f0ca_d.jpg


OCCT Completion screens of CPU temps, RAM & Vcore

*farm6.static.flickr.com/5266/5656708540_b5638acbd8_b_d.jpg

*farm6.static.flickr.com/5022/5656708634_fdcc27931d_b_d.jpg

*farm6.static.flickr.com/5108/5656708730_5a6f2bbc06_b_d.jpg

*farm6.static.flickr.com/5102/5656708838_0ff8cb4796_b_d.jpg


OCCT Running

*farm6.static.flickr.com/5181/5656198131_250b905739_b_d.jpg


One question, what's the max Vcore that I can use safely?

 

[asingh]

re: CPU Overclock List & Discussion Thread

Can you post the RAM SPD settings tab from CPU-Z. You can go till ~1.4, but do it in small increments lower the better.

 

[Skud]

re: CPU Overclock List & Discussion Thread

Will do once I go back to home.

 

[Skud]

re: CPU Overclock List & Discussion Thread

Here you go. SPD settings.

 

[asingh]

re: CPU Overclock List & Discussion Thread

^^
Then you need more vCore for stability. Disable Intel Speed step and C1EST.

 

[Skud]

re: CPU Overclock List & Discussion Thread

Except Thermal Monitor 2 all other power saving features are off. What next?

 

[asingh]

re: CPU Overclock List & Discussion Thread

^^
Up the vCore.

 

[topgear]

re: CPU Overclock List & Discussion Thread

@ topgear

Thanks buddy. I can run OCCT successfully @ 3.50GHz with Vcore @ 1.325V. Vantage CPU score shots to 6300. Temperatures were also pretty good. Under load remains mostly at 43-44. Will do some more testings before further OCing. It looks like my RAMs are not doing well, anything above 800Mhz and there are problems. One query, although I have set the memory voltage to 1.80V at BIOS, it keep on increasing while testing. Is this normal?

It's normal and if you need to push ram speed more you can set mem voltage to 1.9V ( will show something like 1.94V under windows ) and even that is normal.

BTW, run a OCCT 1 hour test and that should give you clear idae about the stability of your OC.

 

[Skud]

re: CPU Overclock List & Discussion Thread

But I have doubts whether my RAM will be able to handle it.

 

[asingh]

re: CPU Overclock List & Discussion Thread

^^
It should be able to handle. Right now, your vCore is the key.

 

[topgear]

re: CPU Overclock List & Discussion Thread

@ SKud - enlisted your OC.

BTW, what's the max speed you want to reach ? looking at your temps I think you might be able to hit ~4 Ghz or even more
Can you tell me your current FSB/NB/SB voltage ?

@ asingh - Buddy I've asked you before ( 08-01-2011 ) and I've listed your OC but still you have not made a post about your nice OC in here so I'm not able to provide any link to it on the list - it would be great if you can make a post about your OC settings of Q9550 in here.

 

[Skud]

re: CPU Overclock List & Discussion Thread

Thanks. Want to get there, currently running @ 3.65 with 1.376V Vcore. But OCCT could not complete. Will post the detailed BIOS settings once I get to the PC.

 

[asingh]

re: CPU Overclock List & Discussion Thread

TG:
Will soon. Will clean my system soon and run the benches. Will get better thermals. Apologies for the delay.

 

[Skud]

re: CPU Overclock List & Discussion Thread

Successfully OCed to 3.6GHz. OCCT run completed for 30 mins. Will post the screens later. For now, here's the BIOS settings I have used:-


MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster ...............: Auto
CPU Clock Ratio ..........................: 10x
Fine CPU Clock Ratio.....................:.0.5
CPU Frequency ...........................: 3.60GHz [343x10.5]

Clock Chip Control
Standard Clock Control
CPU Host Clock Control..................: [Enabled]
CPU Host Frequency (Mhz) ............:343 Mhz
PCI Express Frequency (Mhz) .........: 100

C.I.A.2 .................................:[Disabled]

Advanced Clock Control
CPU Clock Drive...........................: <<<[ 800mV]
PCI Express Clock Drive.................: <<< [900mV]
CPU Clock Skew (ps)....................: <<< [ 0ps]
MCH Clock Skew (ps)...................: <<< [ 0ps]

DRAM Performance Control
Performance Enhance...................: [STANDARD]
(G)MCH Frequency Latch...............: [266Mhz]
System Memory Multiplier ..............: (2.50A)
Memory Frequency (Mhz) ..............: 800 858
DRAM Timing Selectable ................: [Manual]

Standard Timing Control
CAS Latency Time........................ 5
tRCD ......................................... 5
tRP'........................................... 5
tRAS.......................................... 15

Advanced Timing Control
tRRD........................................... 3
tWTR.......................................... 3
tWR............................................ 6
tRFC........................................... 51
tRTP........................................... 3
Command Rate (CMD) ....................: 2

Driving Strength Profiles
Driving Strength ............................ Auto

Channel A
Static tRead Value.........................: 6 (Auto)
tRD Phase0 Adjustment...................:Auto
tRD Phase1 Adjustment...................:Auto
tRD Phase2 Adjustment .................:Auto
tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto
Twr2wr(Different Rank)...................:Auto
Twr2rd(Different Rank)...................:Auto
Trd2wr(Same/Diff Rank)..................:Auto
Dimm1 Clock Skew Control...............:Auto ps
Dimm2 Clock Skew Control...............:Auto ps

Channel B
Static tRead Value.........................: 6 (Auto)
tRD Phase0 Adjustment...................:Auto
tRD Phase1 Adjustment...................:Auto
tRD Phase2 Adjustment .................:Auto
tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto
Twr2wr(Different Rank)...................:Auto
Twr2rd(Different Rank)...................:Auto
Trd2wr(Same/Diff Rank)..................:Auto
Dimm1 Clock Skew Control...............:Auto ps
Dimm2 Clock Skew Control...............:Auto ps

Motherboard Voltage Control
CPU
CPU Vcore….………......1.25000V ......: [1.36250V]
CPU Termination…..... 1.200V.......: [ 1.240V ]
CPU PLL…………………....1.500V.......: [ 1.570V ]
CPU Referen.…………....0.760V.......: [ Auto ]

MCH/ICH
MCH Core…………….....1.100V...........: [ 1.260V ]
MCH Reference….…….0.760V...........; [ Auto ]
MCH/DRAM Ref.…......0.900V...........: [ Auto ]
ICH I/O……………….....1.500V............: [ Auto ]


DRAM
DRAM Voltage ……....1.800V............: [1.820V ]
DRAM Termination .…0.900V............: [ Auto ]
Channel A Reference 0.900V............: [ Auto ]
Channel B Reference 0.900V............: [ Auto ]

Advanced Settings
Limit CPUID Max. to 3.....................: [Disabled]
No-Execute Memory Protect............: [Enabled]
CPU Enhanced Halt (C1E)................: [Disabled]
C2/C2E State Support....................: [Disabled]
x C4/C4E State Support..................: [Disabled]
CPU Thermal Monitor 2(TM2) ...........: [Enabled]
CPU EIST Function.........................: [Disabled]

Integrated Peripherals
Legacy USB Storage Detect ..............[Disabled]


asingh & topgear, please help me take it further without breaking. I am a bit disturbed with the volts. I have seen people OCing this CPU at much lower Vcore at much higher level. Please help.




EDIT: Screenshots added


CPU-Z

*farm6.static.flickr.com/5228/5667273343_0074a885a0.jpg


Memory Settings

*farm6.static.flickr.com/5065/5667273351_605f2bfdea.jpg



OCCT Running

*farm6.static.flickr.com/5188/5667351711_ac8b8ce2ef_b.jpg



OCCT Completed

*farm6.static.flickr.com/5190/5667273407_7916dbb3da_b.jpg



Super Pi Results

*farm6.static.flickr.com/5061/5667273415_d6c3f3f1f5_z.jpg



CPU Temperature Core 1

*farm6.static.flickr.com/5102/5667273417_dbe945705f_b.jpg



CPU Temperature Core 2

*farm6.static.flickr.com/5224/5667852766_647f5e3522_b.jpg



Memory Voltage

*farm6.static.flickr.com/5304/5667852774_04e17a5ea3_b.jpg


Vcore

*farm6.static.flickr.com/5105/5667852796_51fb163428_b.jpg

 

[asingh]

re: CPU Overclock List & Discussion Thread

^^
I ran it 1.424V or something 24x7 @ 4.00 Ghz. You have standard RAM right. That is the issue. It is going to wall you. I remember I never needed such high vCore for your speeds. This CPU has a damn high Mx--atleast for LGA 775 era.

Also to run tests, just use IBT. It catches errors within 5-10 minutes.

 

[Skud]

re: CPU Overclock List & Discussion Thread

What's IBT?