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Q6600 B3: CPU, FSB voltage calculator? - Page 2

post #11 of 31
Thread Starter 
Quote:
Originally Posted by Dopamin3 View Post
You should run memtest86+ to make sure the memory is good.

Besides that you may want to increase the chipset voltage. The memory controller is on the p45 chipset, so when you stress it more by adding more sticks you may need to increase voltage to that area in particular.
I ran all 4 sticks for at least 3 passes on memtest86+ with no errors.

Besides the CPU & FSB voltage, I have my memory voltage at 2.0v and NF200 voltage at 1.20v.

Quote:
Originally Posted by j.col View Post
this^^^^
overclocking 4 sticks of ram is harder than 2
you will need to add more NB (Northbridge) voltage, to cope with the extra 2 sticks, you dont need to add any cpu voltage

in future try to just use 2 sticks of ram. i have 2 x 2gb ram and it saves alot of headaches
It's funny because I tried the 2 2gb sticks alone and I was still getting problems. But I did not try them with a 2.0v. Not sure if I could go any higher on this ram.

Quote:
Originally Posted by jason4207 View Post
Did you add a single stick of RAM? So, you know have 3 dimms populated? To maintain dual-channel operation you want to use 2 or 4 matching sticks of RAM. Preferably 2 as more can put more stress on the NB making it more difficult to OC.




That ain't no P45.
Well I guess that was my problem. Before I had 3 dimms of ram (1x2gb & 2x1gb), ever since I got this 4th one which is another 2gb stick, this is when the problems started.

They're all the same make and model, but they only vary in gb size.
Edited by caribpapi - 3/8/11 at 2:41pm
post #12 of 31
Quote:
Originally Posted by caribpapi View Post


It's funny because I tried the 2 2gb sticks alone and I was still getting problems. But I did not try them with a 2.0v. Not sure if I could go any higher on this ram.
They're all the same make and model, but they only vary in gb size.
you need to increase the NB (northbridge) voltage and NOT the ram voltage.
even if they are the same make and model, they can still perform differently.
i always try to buy matching pairs
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post #13 of 31
Yeah, it matters what chips are on the RAM sticks, not the make/model. And if you have 2 different densities you most likely have 2 different sets of chips.

When I tried to RMA my 2x1GB set of Ballistix a while back Crucial asked me to RMA all 4 sticks that I had even though only 1 stick was bad. They informed me that they are using different RAM chips in the new RAM, and they tend to not play well w/ the old stuff when used together.
post #14 of 31
Thread Starter 
Quote:
Originally Posted by j.col View Post
you need to increase the NB (northbridge) voltage and NOT the ram voltage.
even if they are the same make and model, they can still perform differently.
i always try to buy matching pairs
Well the only thing I have in my voltage settings are for CPU, FSB, Memory and NF200 voltage. Not sure if this feature is included on my 750i. Possibly on the 750i FTW from EVGA?
post #15 of 31
click on user cp at top of this page, and then go to edit system.
fill in your specs, so we can see exactly what you have

edit. you have a EVGA 750i mobo, so look here, this is a thread for your mobo http://www.overclock.net/intel-mothe...ck-thread.html

even better, here is a guide with pics for your mobo with a overclocked q6600 and it shows his voltages http://www.overclock.net/intel-mothe...ing-guide.html

these are for a q6600 G0 but you are just after the voltages so

Hardycore77
Frequencies/Timings
Q6600 @ 3.6 (450*8=1800)
2x2gb Corsair dominator @ 900mhz, linked&synced 5-5-5-15 2T
Voltages
CPU Vcore 1.4875
FSB 1.4
Mem 2.2
SPP 1.5
NF200 Auto(1.2)

Microsis
Frequencies/Timings
CPU: Q6600 @ 8 x 450 FSB = 3.6GHz
RAM: 2x2GB Crucial Ballistix @ 900MHz 4-4-4-12 2T
Voltages
CPU Core: 1.41875v (1.2500 VID)
CPU FSB: 1.4v
Mem: 2.2v
SPP: 1.5v

drewfus
Frequencies/Timings
CPU: Q6600 @ 8 x 458 FSB = 3.66GHz
RAM: 2x1GB Corsair Dominator @ 1100MHz 5-5-5-15 2T
Voltages
CPU Core: 1.52v
CPU FSB: AUTO
Mem: 2.2v
SPP: 1.55v

10acjed
Frequencies/Timings
CPU: Q6600 G0 @ 8 x 425 FSB = 3.40GHz
RAM: 2x2GB OCZ @ 800MHz 5-5-5-15 2T
Voltages
CPU Core: 1.45v BIOS, 1.42v windows (1.3125 VID)
CPU FSB: 1.4v
Mem: 2.1v

as said above, this is for a G0 chip and also different ram, so ignore the cpu and mem voltages
Edited by j.col - 3/8/11 at 2:15pm
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post #16 of 31
Quote:
Originally Posted by caribpapi View Post

Besides the CPU & FSB voltage, I have my memory voltage at 1.20v and NF200 voltage at 1.20v.
1.2v seems very low, is that the stock voltage?
if not sure, it will tell you on a sticker on a stick of ram

leave nf200 at 1.2v
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post #17 of 31
Thread Starter 
Quote:
Originally Posted by j.col View Post
1.2v seems very low, is that the stock voltage?
if not sure, it will tell you on a sticker on a stick of ram

leave nf200 at 1.2v
Whoops. Sorry, I meant 2.0v. The website showed 1.8v, the sticker on the 2gb sticks showed 1.9v.

Thanks for the guide, right now I have my settings set as Linked with my memory in Sync mode. (Before I had them unlinked)

I also disabled the C1E function that I still had enabled and I am trying a CPU voltage of 1.425 and a FSB voltage of 1.20.

Putting my system through a 2 hour OCCT test. Anyone prefer something better?

Just ran my test while browsing and doing other things on my comp. No freezes and the highest temps I hit on my cores were 45c-51c. I have ran long times before and the problem has come back. I'll cross my fingers.

UPDATE: Just had another freeze after 4 hours. Gonna see if I slowly boost up the FSB to no more than 1.4v, then move up the CPU one step at a time.
Edited by caribpapi - 3/8/11 at 7:24pm
post #18 of 31
what speed are you at now?
you can go higher than 1.4v
as its a 65nm chip, i have seen some on 1.5v 24/7
just raise it in small amounts as more volts = more heat

also i perfer intel burn test to check for stability. its often found an unstable OC in 30 seconds lol

this is from another post of mine answering about running IBT properly and your gflops score

is this using Intel Burn Test? (IBT)
if so then it can be the test itself thats causing this.
if not then ignore below

"i was in a similar position to you, as using the standard, high or maximum tests i was getting anything from 25 gflops to 42 gflops

then i stumbled on the thread below.

you have to run ibt properly
before running, open task manager and see the amount of free ram.
for example i have 2550mb free ram so in IBT i enter a custom amount of 2500. (just below the free amount)
then i change the threads from auto to 4 (quad core)
now every run i make i always get around 40-42 gflops. (consistent) which is about right for a Q6600 at 3.3GHz

running just free memory will help you get higher gflops, as its just using free ram and not cached ram
this should also have 4 cores running at 100%"

this will give you more consistent gflops score, but will also make your temps higher, as more gflops, the more the cpu is stressed"
so if you are at say 3.2ghz you shoulf be getting at least 38gflops, anything less and you are not running the test properly

full details on running IBT properly http://www.overclock.net/intel-cpus/...test-linx.html
Edited by j.col - 3/9/11 at 4:19am
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post #19 of 31
Thread Starter 
Right now my CPU is at 1.4250v. Before getting my second 2gb dimm of memory, I had it at 1.5v, but I started to read how some people are achieving the same 3.2Ghz OC without needing to go so hi, so I wanted to see how low I can go.

I guess you're right about Burn Test finding my OC unstable fast. The first time I used it, it did it in 10 seconds, then I changed my memory voltage back to 2.0v and it didn't freeze after 5 minutes, but I ended up stopping it because the temp levels were scaring me. lol

What's the max time I should be running Intel Burn Test?
post #20 of 31
Quote:
Originally Posted by caribpapi View Post

What's the max time I should be running Intel Burn Test?
some people say it should be 50 runs, to be 100% stable.
but the most i have run is 5 passes.

i play civ v and bad company 2 every day and often convert avi files to dvd. and i have never had a bsod or the pc has never locked up
so in my opinion my pc is stable

i have reached 75.C in IBT and it is scary,
before i reapplied the TIM i had the temps reaching 79
running IBT is extreme, in normal everyday use, your pc will never reach those temps.
if the pc is fine playing games, converting dvd's etc.. then its fine imo.

also when i asked what speed you are at i meant the speed of the cpu eg. 3.3GHz

edit.
my ram is rated at 1.8v, to get my ram to 990mhz i just raised it to 1.9v
every ram is different,
if you have left your ram at default speed, then it needs no more extra power
Edited by j.col - 3/10/11 at 5:20am
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