Hi guys
Been trying to oc my rig lately getting from stock speeds upto about 1950Mhz.. but my PC keeps crashingis it my poor memory, if so what would you recommend I do?
I try to run 3dmark2001SE and it tends to just freeze... could this be another problem?
Chris
Yeah. It's at about 1950 that you will have problems with the HTT if you don't lower the mutiplier. Set the HTT multiplier to 3x.
If that doesn't work, it will be your RAM. Put a 166 divider on it.
So if I lower the multiplier and increase the HTT, it should work? Are there any easy programs to do some tests to see if it is my memory?
Chris
Last edited by chriswood_7; 23-08-2005 at 12:07 AM.
You can put you're overclock to it's maximum achievable value without crashing and run Memtest.
Alternatively, find the max speed of you're RAM by reducing the HTT multiplier to x1 and boot. Using ClockGen, reduce the CPU multiplier to 1. Then, increase the HTT value until your system crashes. The only overclocked value will be your RAM, as your processor and HTT are on vastly reduced multipliers. Note the value your HTT reaches, and knock off 5Mhz. This is your maximum RAM speed.
Do NOT use windows to overclock ever!
Here's a good guide: rubbishrubbishrubbishrubbishrubbishrubbishrubbishrubbishrubbish.com
Your Twinmos is ok - try looking for TwinMOS memory guides
Why not?Originally Posted by kempez815
which particular test does it crash in?
Instability issues whithin windows. Its a n00bs way of overclocking that tends to lead to problems like the OC only coming on while in windows and then crashing a lot. BIOS is more recoverable and does it properley
I disagree.Instability issues whithin windows. Its a n00bs way of overclocking that tends to lead to problems like the OC only coming on while in windows and then crashing a lot. BIOS is more recoverable and does it properley
When o/c'ing my winchester I sat with clockgen, tweaking the speed with prime running. Granted I'd already tweaked a few things in the BIOS, but testing in windows with clockgen running, waiting for prime to error (avoiding a system crash in the process) made my overclocking experience much quicker. I then went into the BIOS to finalise the settings.
My opinion - windows overclocking is handy, but don't rely on it exclusively.
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Yea I agree with Steve as well.. Abit uGuru based Window shell overclocking seems to work pretty well. No instabilities as long as I keep everything within my hardware's workable limits (ie. memory dividers, HT multi etc). The Guru Clock on the fly OC is even sweeter.
On another topic, has anyone overclocked a XMS C2PT past DDR500? I tried to bring my memory past 250MHz, everything was fine until I ran CS:S for 1 hour and "memory allocation XXXXXXXXEXXX could not be read".. shuggs.. already ran really loose timings 3-4-4-10 but CS:S is still crashing as if its a hobby.
Me want Ultrabook
Cheers for your help guys, looking forward to getting home now
Chris
I have my 3000+ Venice OCed by 10%, it was really unstable when doing it through the motherboard software, but once we had a fiddle with the bios, it was stable as anything.
Hey guys, cant seem to find half the stuff your asking me to do in my mobo settings. Seems my mobo is a load of ****e, I cant even overclock 50MHz without the whole thing crashing.. what a load of rubbish! Could it me my poor memory or my PSU? Its a 550W one from Aria...
Chris
okay.. lets get into the nitty gritty stuff.. I have the same mobo as you.. so I should be able to point u around..
First.. get into your BIOS.. press DEL when u see the nice ABIT logo..
When u get in.. U'll see loads of stuff.. Go to Integrated Peripherals
--- Go into AGP.. and turn off Enable Fast Write
--- Go into DRAM settings.. and set speeds from AUTO to SPD.. then you'll see ur memory's native SPD speeds.. then switch to MANUAL.. and set the DRAM Ratio to 266MHz
--- Go to HT Settings and set HT multiplier to 3x
AV8 doesnt like to boot with too many stuff changed.. save ur settings and reboot ur computer.
Now go back to the BIOS again when u see the ABIT boot screen..
Now go to uGURU..
You will need to change the speed from 1800(200) to Manual
--- Now you will see all ur settings below ur CPU speed becomes available
--- Default settings are normally 204/66/33.. I might be wrong
--- Now go down and set ut voltage control to MANUAL
--- bring your NB voltage up to 1.6V
--- bring your HT voltage up to 1.3V
Since ur using a Winnie.. you should probably up the CPU voltage to 1.5V
Now go back a few notch up.. and set the AGP LOCK setting to 74MHz (66MHz lock dont work very well with Nvidia cards until BIOS rev 19)
--- Now you can slowly up your HT Mhz... first stop would probably be 220MHz.. save ur settings and boot..
------------ CONTINUE DOING THIS MHZ INCREMENT UNTIL INSTABILITY SETS IN ----
and post back..
Me want Ultrabook
sawyen, you say disable fast write, can you tell me why? I have aften wondered what it does.
Dont exactly know why except I get much higher 3D stable overclocks when I turn it off... When I leave it on, the highest I can go was 275MHz HTT (don't get me wrong, Prime95 is ultra stable).. it just keeps crashing in 3Dmark..
When I turn it off, I can run 3Dmark at 295MHz HTT (Prime95 sometimes crashes 4 hrs into it, but sometimes it doesnt even crash after 10 hrs)
Me want Ultrabook
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