Yes, confirmed by me and 1tanker a few pages back. I bumped up voltage in BIOS that went unchanged in CPU-Z or any type of software monitor, but with DMM the change registered and it made a previously unstable OC, stable.
@cincyrob - you might want to give this thread over at tweaktown a read. 39 pages on your board and a q9550. Not promising it's going to contain the holy grail but it's got a fair amount of discussion on the setup you are working with.
Hey man, at least you are working with a 9550 - trust me, the 8x multi on a 9450 presents its own can of worms! :)
Hey guys, I'm new to the forums. I couldn't find a section for introductions, so I decided to come here since I have a UD3P and an E8400. I'll give my system specs: Antec 900, TX750W PSU, UD3P, E8400 E0 1.25 vid with an HDT-S1283 mounted on it, XFX 4890 (soon to have a second as soon as prices drop), 1TB Caviar Black, and 2x2gb of OCZ Reaper 1066. I have a question... Is there any way at all to acheive 5ghz on air cooling? Or am I just dreaming. I have my cpu at 500x8 right now with 1.29v and stock fsb, pll, etc. I just have the NB bumped to 1.4v. Also are there any methods that you can keep your OC stable while lowering your vcore? I see guys running 4.5ghz with less than 1.3v and I don't know if they have a golden chip or if they know something I don't. :p: Anyways glad to be on here looks like alot of good threads!
Hello Shiver, There is no doubt the board is capable of a 550+ FSB, but as far as on air cooling, I dont know. I think at that FSB you might need at least H20 cooling on the NB. Im curious how other people are cooling there NB at high FSB and MCH. At 4.5 with less then 1.3, yes, u can safely say they have a golden chip, and probably a low vid chip also. Your vid is on the high side. For finding lowest Vcore run P95 smallFFTs, then move onto Blend P95. Alot of people are finding they need slightly more Vcore to run P95 Blend then they did running P95 small FFTS.
Ok thanks thats good to know. I just got my cpu running 500x9 p95 blend for 30 minutes and then I stopped it, because it needed 1.472v according to cpu-z to do so and the temps were getting to mid 70's. My guess is for 5 ghz I'd need like 1.6v on the NB, 1.7vcore+ and obviously the right cooling to handle that.
Sorry guys, must've missed page 175 and 176 LOL
Here's what I got.
http://img30.imageshack.us/img30/1291/vdrop.jpg
I have been able to hone all my settings in now. I managed to get my system to be as stable as it can be using Intelburntest. I turned up my FSB Term to a hefty 1.44 with a gtl of .83 or .84 to get rid of the CPU acting slow when firing up Intelburntest after the PC has been shut down all day. I also managed to get my best 3DMark Vantage score for my self ever as well. I managed to pull off a score of 17719 :up:.
http://service.futuremark.com/compare?3dmv=1441908
Here is what my bandwidth is with Everest as well. This is the best I have been able to get this board to do in Everest as well, at this speed that is.
http://img121.imageshack.us/img121/2548/bestever.png
I just posted this in the Q9550 thread and figured I would post it here to help people out with tweaking their BIOS settings.
If you can see what the GFlops that your CPU is putting out with Linx, or use Intelburntest which I know you can see the GFLops the CPU is pushing in that program "I just haven't used Linx mind you". You will be able to probably see that your FSB Term is set to low and your GFlops being put out by the CPU when cold or when it has been shut down all night or all day, are probably half of what they should be with your chip.
I am pushing 58.5 GFlops with my CPU @ 490 x 8.5 @ 1.296v under load, this is with utilizing 3084MBs of my Ram~ for the test and the test finish in around 86s a piece~. I had noticed this because when booting my system cold from being shut down all day or all night, I noticed that when running Intelburntest the GFlops being put out by my CPU were half of what they are when the system has been warmed up or after being rebooted a few times because of me tweaking settings. You can also use it to fine tune your GTL settings as well.
I noticed that if the GTLs are off then two of the cores on the CPU will get hotter then the other two while running Intelburntest or all cores will not get hot enough. This can significantly cut time you spend tweaking these settings because you don't have to finish the test you can just go ahead and stop the test reboot and tweak some more until you see the temps are even and about the right temperature under load taking in to consideration your cooling ofcourse.
Then once you think you have the cores hitting good temps and evenly for that matter, let the test finish and see what the GFlops being pushed out are and if the time finished is fast enough as well. If you get everything set just right BIOS setting wise, all cores will stay about the same temperature all the way through the test nice and stable like. I just caught on to this and was able to tweak mine to perfection landing me the following.
3DMark Vantage Score 17719
http://service.futuremark.com/compare?3dmv=1441908
Here is what my bandwidth is with Everest as well. This is the best I have been able to get this board to do in Everest, at this speed that is.
http://img121.imageshack.us/img121/2548/bestever.png
I had to set my FSB Term to 1.44 with a GTL Reference of .84 to get everything to act correctly when first firing my PC up from being shut down all night or all day and the results speak for them selves. Hope this helps people because if I had known this awhile ago I could have saved my self some serious time tweaking BIOS settings.
I can post my BIOS settings later tonight if any one likes. I am work right now though so, I will have to wait until I get off work and home from my friends wedding tonight to do it.
Where's the measurement point? Did I miss it earlier in the thread?
awesome, thanks.
For reference in case anyone else was wondering too.
http://www.images.clunk.org.uk//revi...ts/vcorewm.jpg
http://www.images.clunk.org.uk//revi...olts/pllwm.jpg
http://www.images.clunk.org.uk//revi...olts/vttwm.jpg
http://www.images.clunk.org.uk//revi...volts/nbwm.jpg
http://www.images.clunk.org.uk//revi...ts/vdimmwm.jpg
I think I found my new spot. It tested stable but, I will keep testing it to make sure.
http://img97.imageshack.us/img97/3601/newspot.png
hi guys i have found out why my cpu would not go over 3.5 .
It was the cpu tremanation was low
but the next problem is i dont know what a (safe temp) will be using intel burn test for 45nm prossesors
prime 95 seems to give me about the same temps under load
if i use 1.35volts@ 3.8ghz wanted 4.0ghz the temp shoots up to 90c in a blink of an eye at 3.7 the temps are hitting 85c and i dont know what to do
ps i know i can get it stable but the temps worry me
please guys what would you do in my case
specks again
ep45-ud3r
q9450@3.5 with true @1.175volts (bios)120 (silenx 120mm 90cfm fan push pull)
ocz reaper 1066@1055
asus gtx 280 (no oc) gets to hot as it is
enermax galexy 1000watt psu
thanks again if anyone can help
I just stopped Prime95 from testing. I ran 7 hours with no errors and tested intelburntest stable as well before I started that. These are my settings.
Code:Robust Graphics Booster - Auto
CPU Clock Ratio - 8 X
Fine CPU Clock Ratio: +0.5
CPU Host Frequency - 495
PCI Express Frquency - 100
C.I.A.2 - Disabled
****Advancded Clock Controll****
CPU Clock Drive - 1000mV
PCI Express Clock Drive 1000mV
Clock skews are all set to 0PS.
****DRAM Performance Control****
Performance Enhance - Turbo
Extreme Memory Profile - Disabled
(G) MCH Frequency Latch - 333MHz
System Memory Multiplier - 2.40B
Dram Speed: 1188MHz
DRAM Timing Selectable - Manual
>>>Sandard Timing Control<<<
CAS Latency Time - 5
tRCD - 5
tRP - 5
tRAS - 15
>>>Advanced Timing Control<<<
PL : 8 On both channels
DDR Write Training : Off for both channels
Everything else is Auto.
Driving Strength Profile - Auto
****Motherboard Voltage Control****
>>>>CPU
Load Line Calibration - Enabled
CPU Vcore - 1.350V
CPU Termination - 1.42V
CPU PLL - 1.590V
CPU Reference - .884V
>>>>MCH/ICH
MCH Core - 1.520V
MCH Reference - .899V
MCH/DRAM Reference - 1.000V
ICH I/O - 1.500V
ICH Core - 1.100V
>>>DRAM
DRAM Voltage - 2.100V
DRAM Termination - .800
Channel A Reference - Auto
Channel B Reference - Auto
CPU Features are all Disabled.
If I set my FSB Term any higher then 1.42 it errors out, or it is the NB voltage if I go over 1.52 one of the two. All I know is that it is stable as a rock here. These are the settings I was using for 490 x 8.5 as well I will add.
@Rubber
What cooling method are you using air? If so what cooler? Try my settings listed above maybe, if your cooling can handle it.
@truehighroller, what does your CPU Ref and MCH Ref shows when you set 1.200v Termination?
Mine likes to be set at around .88, so far that has been the sweet spot for all my FSB Term voltages that I set 1.32 and above. My NB voltage changed a little though a couple of times depending on what voltage I set it to but has been roughly between .88 - .92. I think that every CPU differs though and chipset for that matter. I will go look for you though when it is set to 1.20. BRB
Edit:
I just looked and when I set it to 1.2 it sets itself to .745 but, I know for a fact that my CPU liked .63 when at this setting.