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Commando OC Problem 350FSB Wall. Help! - Page 2

post #11 of 20
Thread Starter 
Quote:
it won't post first time until I manually shut down and restart
Im not sure what you mean by this. If I change the FSB to 350 etc.. when the bios shuts down the PC, restarts it, and then doesnt post, I manually power it off but the BIOS will revert back to stock settings.. or is this what you meant?

Quote:
maybe its the memory controller in the NB(?)
This worries me as im pretty sure that would entail replacing the motherboard.

Basically Im tired of stressing about it, I spent a lot of money on this rig so I found a guy that takes any PC job for £49. Im taking it to him tomorrow and hes gonna take a look at it with me so hopefully Ill get a good idea of what to do next from him.
post #12 of 20
Quote:
Originally Posted by Chrispin View Post
This worries me as im pretty sure that would entail replacing the motherboard.

Basically Im tired of stressing about it, I spent a lot of money on this rig so I found a guy that takes any PC job for £49. Im taking it to him tomorrow and hes gonna take a look at it with me so hopefully Ill get a good idea of what to do next from him.
No, sorry, what I meant was try it with a little more voltage to the NB, just try and keep it below 1.5V,
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Q6600 @ 3.20 GHz, 1.400v ASUS Commando BFG 8600GTS OC 2GB Team Xtreem PC2-6400 
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24/7 BOINC!!
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CPUMotherboardGraphicsRAM
Q6600 @ 3.20 GHz, 1.400v ASUS Commando BFG 8600GTS OC 2GB Team Xtreem PC2-6400 
Hard DriveOSMonitorKeyboard
250 GB Maxtor Ubuntu and XP for games and CAD Acer AL2216W 22" Logitec 
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SilverStone Zeus 750W Antec P180 Logitech G7 Everglide Richochet 
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post #13 of 20
Thread Starter 
Tried NB to as close to 1.5 as i dare and still nothing. Im beginning to think this isnt a voltage issue.
In case anyones interested Ill let you know what the 'PC guy' says when I see him tomorrow...
post #14 of 20
Quote:
Originally Posted by Chrispin View Post
520w Coolermaster PSU

Current Voltages:

vCore: 1.35
SBvCore: 1.09v
SB Sata: 1.58v
FSB Termination: 1.21v
DDR2: 1.92v
DDR2 Termination: 0.96v
NB vCore: 1.28v
Memory Timings with everything at Auto and stock speeds: 5/4/4/12/ and SPD: 5,6,6,18
CoolerMaster PSU? Bad choice IMO, never heard a good thing about them.

Vc maybe a little more.
SB Vc AUTO
SB S AUTO
FSB term AUTO
DDR2 @ 2.10V
DDR2 @ AUTO
DDR2 timings @ 4-4-4-12
NB Vc @ 1.50

I'd say that should brake it. At least that's what my P5B Deluxe needs for 400fsb, except the Vc is at 1.60v.
post #15 of 20
Quote:
Originally Posted by Chrispin View Post
Im not sure what you mean by this. If I change the FSB to 350 etc.. when the bios shuts down the PC, restarts it, and then doesnt post, I manually power it off but the BIOS will revert back to stock settings.. or is this what you meant?
No it doesn't revert back to anything, no warnings of failed OC etc. After I change some settings significantly, and I get the one-time no POST, manually restarting once and then it just works after that. If yours is actually saying OC failed, load setup defaults or continue whatever, then that's different.
    
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post #16 of 20
thats wht i had, and it happend each time i set my timings at 3-3-3-8 at speeds above 800MHz. since im too lazy to find out whether its actually that, i just run 4-4-4-12.
my vNB is at 1.45, FSBterm at 1.35, DDR2 @ 2.325
post #17 of 20
Thread Starter 
Quote:
If yours is actually saying OC failed, load setup defaults or continue whatever, then that's different
Yeh thats what happens with me. "overclock failed"

However, ive had a breakthrough! Take a look at this:



So judging by the SPD timings my memory may be the problem. Tested it by loosening memory timings to 6/5/5/14 and ive now moved through the 3.0ghz threshold! At least I know now that theres no major fault. Cant believe that I overlooked these memory timings.
However, I should obviously be able to tighten these timings especially if Im planning on overclocking.
Can I get some opinions on these timings please? Have aI got rubbish ram that cant be tightened? Or maybe just needs a voltage tweak? Im unsure how these timings relate to how good/bad the memory will be when overclocking.
Thanks all!
post #18 of 20
timings arent too important. first see how far your CPU allows you to go, then select the fastest option you think your RAM is capable of. 5-5-5-15 should run. differences with 4-4-4-12 are only noticable in synthetic benchmarks, but not in gaming.
post #19 of 20
Thread Starter 
Quote:
timings arent too important. first see how far your CPU allows you to go, then select the fastest option you think your RAM is capable of. 5-5-5-15 should run.
For some reason I cant get it stable at anything other than 6-5-5-18. Is this a problem?
I still have a lot to learn as this is my first overclock, but i will be able to push it a lot more once ive got a decent case/cpu cooler and may invest in some branded ram if i intend to go over 400fsb.
At the moment im running stable at 2.8Ghz with temps (according to speedfan and tat as: CPU: 55c, Highest Core Temp: 60c.
Will leave it at that until i get the temps down i think...
post #20 of 20
nah. you probably wont notice in real life situations.
since you've reaced 60max load, getting a decent cooler before continueing is indeed advised. however, 2.8GHz is pretty fast already.
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