Go Back   Computer Forums > General Computing > Hardware
Click Here to Login
Join Computer forums Today


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-11-2009, 03:29 PM   #1
Baseband Member
 
Join Date: Dec 2005
Posts: 88
Default Is this Healthy OC? (Q9550)

Hello, question is very simple, I have Overclocked my Q9550 a while ago, and now I was thinking about pushing it even further.
I am still at the starter stage of overclocking skill-wise.

This is currently what I am working with
MOBO - BIOSTAR TForce TP45HP LGA 775 http://www.newegg.com/Product/Produc...82E16813138123

CPU - Intel Core 2 Quad Q9550 Yorkfield 2.83GHz http://www.newegg.com/Product/Produc...82E16819115041
OC'ed to ~3.3

RAM - CORSAIR XMS2 DHX 4GB http://www.newegg.com/Product/Produc...82E16820145194

CPU COOLER - http://www.newegg.com/Product/Produc...82E16835103055

Here is the OC




Is this a healthy OC ? I know the Core Voltage might be slightly high. What would you guys change to get higher speeds?
My problem is, I understand overclocking of the CPU itself, however when the FSB/Memory Timings and all that comes into play, I'm pretty damn confused.
__________________

Luke2 is offline   Reply With Quote
Old 08-11-2009, 04:10 PM   #2
Daemon Poster
 
disturbed13's Avatar
 
Join Date: Jul 2007
Posts: 1,154
Send a message via Yahoo to disturbed13
Default Re: Is this Healthy OC? (Q9550)

im keeping my eye on this thread
ive been wanting to OC my Q6700 to 3.25 GHz
i need to understand the memory timings myself
so here is a bump
__________________

__________________
If you think you can, you CAN! If you think you cant, your right.
<iframe src="http://www.worldcommunitygrid.org/getDynamicImage.do?memberName=disturbed13&mnOn=tru e&stat=1&imageNum=4&rankOn=false&projectsOn=false& special=false" frameborder="0" name="di" scrolling="no" width="125px" height="176px"></iframe>
disturbed13 is offline   Reply With Quote
Old 08-11-2009, 04:15 PM   #3
Golden Master
 
worshipme's Avatar
 
Join Date: Oct 2007
Posts: 5,603
Default Re: Is this Healthy OC? (Q9550)

Unless you have a poor chip, it should reach much higher frequencies at that core voltage. Have you set all voltages manually in the BIOS? As the mobo will automatically and often unnecessarily raise voltages by itself if left on "Auto".

Leave your RAM on the looser timings whilst you work on the CPU OC, this eliminates variables. You have the ratio @ 1:1 with the FSB, this is best. Your FSB is 400MHz (1600 QDR), so your RAM runs at 400MHz (800 DDR)

EDIT: Memory timings are simply the delay (either in ms or cycles depending on the timing) that the memory takes to process commands. You should leave the memory at looser timings as you have done (5-5-5-15 when your memory can run 4-4-4-12 @ 800 DDR) until you have finalised the CPU OC. Timings have a negligible effect on performance, but it's always fun to get them down as low as stability allows.

I'm thinking of getting an E0 Q9550 to play with myself
__________________
AMD Phenom II X4 955 BE @ 4.0GHz + TU120E lapped - MSI 770-CD45 AM3 - 2x2GB OCZ DDR3 1333MHz - Sapphire HD 4870 - Samsung Spinpoint 500GB 7200RPM 16MB cache HDD - Tagan TG600-BZ Piperock - (Currently open test bed) - Windows Vista Home Premium 64bit.
worshipme is offline   Reply With Quote
Old 08-11-2009, 04:55 PM   #4
Baseband Member
 
Join Date: Dec 2005
Posts: 88
Default Re: Is this Healthy OC? (Q9550)

Thank you for the info.
I was browsing through many OC threads for this particular chip, and it seems like people would get high speeds at much lower Vcore than I have. Therefore I lowered it a bit. But the PC does not post.
I think my problem lays in other voltages with which I am not too familiar.
I took a picture of my BIOS Voltage settings.
I manually set these paramaeters.
Are these all in the "safe zone" ?
And could I raise the Chipset/FSB/DDR some more ? If yes, which ?
Thank you so much
Luke

here are the Voltages
Luke2 is offline   Reply With Quote
Old 08-11-2009, 05:14 PM   #5
Golden Master
 
worshipme's Avatar
 
Join Date: Oct 2007
Posts: 5,603
Default Re: Is this Healthy OC? (Q9550)

Tone down the FSB voltage, it's too high for the 45nm chips. I'm running 4.3 with 1.1V fine. High FSB voltages are the primary cause of failure.

And understand that every chip is different, some overclock better than others and duds do exist as do little gems.
__________________
AMD Phenom II X4 955 BE @ 4.0GHz + TU120E lapped - MSI 770-CD45 AM3 - 2x2GB OCZ DDR3 1333MHz - Sapphire HD 4870 - Samsung Spinpoint 500GB 7200RPM 16MB cache HDD - Tagan TG600-BZ Piperock - (Currently open test bed) - Windows Vista Home Premium 64bit.
worshipme is offline   Reply With Quote
Old 08-11-2009, 07:25 PM   #6
Fully Optimized
 
A True Folder's Avatar
 
Join Date: Jan 2007
Posts: 2,789
Default Re: Is this Healthy OC? (Q9550)

Given that your cpu is at idle I would consider those temps to be too high, check your cooler mount / Thermal paste application / case airflow. What are the temps under load? (Prime95 Blend Test)


Linked NB/SB voltages? mmmmm, first time I've encountered that, usually they're seperate.

That said, 1.264V on the NB seems low to me for a Quad

CPU VTT (FSB Voltage) is a little high, I'm using 1.15V for mine

Your cpu should be able to go to 1.3625V OK, rule of thumb is not to exceed 1.4V on air cooling, as always, keep a close eye on your temps.

Quote:
Originally Posted by Luke2 View Post
And could I raise the Chipset/FSB/DDR some more ? If yes, which ?
Chipset
(NB/SB) probably, you need to keep a close eye on the temps if you do, I would try and stay under 1.5V if temps are OK (without specialised cooling)

FSB
(CPU VTT) Probably not, it would be better to try and reduce this as above.

DDR
VDIMM, according to your CPU-Z screen dump you're already exceeding the XMP Profile voltage for 400MHz at 4-4-4-12 timings, you should not have to do that, reduce it to a maximum of 2.1V

Before continuing - Reduce your cpu temps
__________________
E8600@ 4.25GHz, 1.325V | Thermalright Ultra 120 eXtreme + Scythe Slipstream 120 | Asus Rampage Extreme| 4GB Corsair 2000MHz 8-8-8-24 @ 1600 6-7-6-24| ASUS 9800GTX| Pioneer 18X SATA DVD-RW | 320GB + 500GB WD SATAII | Antec True Power Trio 650W | Thermaltake Sonata | Vista Ultimate x64 SP2/Win7 Ultimate
A True Folder is offline   Reply With Quote
Old 08-11-2009, 08:01 PM   #7
Baseband Member
 
Join Date: Dec 2005
Posts: 88
Default Re: Is this Healthy OC? (Q9550)

Ok tyvm.
I will get on this hard starting tommorow, probably start from scratch, re-apply thermal paste and all that good stuff.
btw, the temps under load from P95 and Intel Burn Test are ~72C.

I will post some results/questions tommorow.

thx again
Luke2 is offline   Reply With Quote
Old 08-11-2009, 08:26 PM   #8
Golden Master
 
worshipme's Avatar
 
Join Date: Oct 2007
Posts: 5,603
Default Re: Is this Healthy OC? (Q9550)

Quote:
That said, 1.264V on the NB seems low to me for a Quad
It's the 55nm P45 remember, the X38/X48/P35 are all 65nm.

That said, it's worth a shot once you've reduced the FSB voltage.
__________________
AMD Phenom II X4 955 BE @ 4.0GHz + TU120E lapped - MSI 770-CD45 AM3 - 2x2GB OCZ DDR3 1333MHz - Sapphire HD 4870 - Samsung Spinpoint 500GB 7200RPM 16MB cache HDD - Tagan TG600-BZ Piperock - (Currently open test bed) - Windows Vista Home Premium 64bit.
worshipme is offline   Reply With Quote
Old 08-11-2009, 08:56 PM   #9
Daemon Poster
 
disturbed13's Avatar
 
Join Date: Jul 2007
Posts: 1,154
Send a message via Yahoo to disturbed13
Default Re: Is this Healthy OC? (Q9550)

doesnt that ~72C seem VERY high under load for that OC?
__________________
If you think you can, you CAN! If you think you cant, your right.
<iframe src="http://www.worldcommunitygrid.org/getDynamicImage.do?memberName=disturbed13&mnOn=tru e&stat=1&imageNum=4&rankOn=false&projectsOn=false& special=false" frameborder="0" name="di" scrolling="no" width="125px" height="176px"></iframe>
disturbed13 is offline   Reply With Quote
Old 08-11-2009, 09:46 PM   #10
Fully Optimized
 
A True Folder's Avatar
 
Join Date: Jan 2007
Posts: 2,789
Default Re: Is this Healthy OC? (Q9550)

Quote:
Originally Posted by worshipme View Post
It's the 55nm P45 remember, the X38/X48/P35 are all 65nm.

That said, it's worth a shot once you've reduced the FSB voltage.
True, a little more VNB would probably help with a lower VTT though

Quote:
Originally Posted by disturbed13 View Post
doesnt that ~72C seem VERY high under load for that OC?
It does as do the idle temps hence my post regarding checking CPU cooler seating / thermal paste application / case airflow
__________________

__________________
E8600@ 4.25GHz, 1.325V | Thermalright Ultra 120 eXtreme + Scythe Slipstream 120 | Asus Rampage Extreme| 4GB Corsair 2000MHz 8-8-8-24 @ 1600 6-7-6-24| ASUS 9800GTX| Pioneer 18X SATA DVD-RW | 320GB + 500GB WD SATAII | Antec True Power Trio 650W | Thermaltake Sonata | Vista Ultimate x64 SP2/Win7 Ultimate
A True Folder is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -5. The time now is 03:21 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Friendly URLs by vBSEO 3.6.0