Weird OC problems

N

niranjan162

Limp Gawd
Joined
Jul 22, 2005
Messages
153
Hey guys,

Got an opty 165 recently so ive been pushing my overclock. I am at 2.5ghz @ 285 FSB right now and i can run orthos for 8 hours without any errors, usually after a while though my comp starts freezing and unfreezing and i gotta restart.

I think it might be the memory since when i ran a blend stress test of cpu and ram and it came back with an error.

Anybody have any ideas wut i could do?
 
well is your ram 1:1 or is it on a divider? when you run orthos are you running large FTT or blend?

run your RAM on a divider... also your board might not be able to keep up with the CPU...

lower the multi on your CPU to 7x and put a divider on your RAM and push the board till it fails... see if it can run 280+ FSB
 
I have the divider set so that my ram is running @ 370, I ran both a blend, which returned an error in under an hour, and small FTT which ran 8 hours without any errors.

I'll try pushing the board, what will happen when its fails, it just wont post?

Thanx for the replies guys.
 
try upping your vcore it doesnt see stable..... up it to 1.375v see if it passes blend
 
ok

so the max my board can do is 300 FSB (cant set it any higher in the bios). So i left it at 285 upped the vcore to 1.375 and ran the blend test and my computer just completely shut off.

Is that really bad?
 
it still could be ram.... shut offs can also be from undervolting or overvolting..

also what does coretemp say your cores are at?

its not bad... just reboot and try different settings.... run your board at 285fsb with cpu multi at x7 and set a ram divider.... run orthos all night and see if the board is even stable at 285


if it isnt.. you need a new board or settle for low OCs...
 
Do you have the dual core fixes from Microsoft and/or AMD installed? For me, I no longer have either installed as it froze my system after a day or so of usage.
 
I installed the AMD dual core optimizer, but not the hot fix, i didnt think i needed it cuz everything worked pretty good at stock speeds.

Coretemp says my cores are at 38 and 42C idle 60sih load.

I will try running orthos with the multi at 7 2moro during classes, and see if its stable

hopefully it is
 
Hmmm... well a couple of things to check. First thing, see if uninstalling the AMD hotfix helps with stability in general.

More importantly, though, it seems your temps are a bit on the high side - especially during load. Are you using the stock heatpipe cooler? Maybe try reseating the heatsink and reapplying a new layer of thermal paste. Another thing is to make sure you have good airflow through your case. This becomes important especially with a smaller case like an mATX. See what the temps are for your motherboard chipset(s) while you're at it. If it's running too hot then you that could be (one of) the source(s) of instability for your overclock.

Also, if your system completely shut off without freezing or giving any errors, it quite possibly is the fault of your power supply. Which one are you using?

Hopefully this can help a bit. Good luck! :)
 
im using a Zalman 7000 on the cpu.

Im pretty sure there is bad airflow through my case but im not sure how to fix that, so damn cramped in that little case. I was thinking about putting some holes in the top of my case so that the PSU fan on the top could vnetilate out as well.

http://www.newegg.com/Product/Product.asp?Item=N82E16817388003
thats the PSU im using, its got some damn long cables which makes air flow even worse.

my Northbridge temps are at 46C right now, the max it can go before it starts to mess things up is 55C(pushed the on board video a little while back).

thanx for all the help thus far.
 
Update guys,

So i was running orthos for almost 8 hours today with the board at 285 and the cpu multi at 7. I was also running my tv tuner (doesnt take up too many resources AFAIK) and then decided i would try running an internet speed test, and the tv picture freezes, and my computer starts to freeze and unfreeze.

So then i decided to just crank the board up to 300 and everything loaded fine except that my internet stopped working.

Think it might be an IRQ issue or PCI lock being messed up(i tried to check for PCI settings but i couldnt find any) ?
 
Sounds like the onboard controller for the ethernet and possibly the PCI bus lock, keep looking for it and lock it.
 
Well thats the thing the onboard ethernet craps out at 250FSB so i put in a PCI NIC, and now it doesnt work at 300FSB. It seems as though when i try downloading big files and run the tv tuner it starts to lag(freeze for a couple seconds, work then freeze again).

I thought my PCI bus was locked does this mean its not?
 
sometimes you can't lock the PCI bus, its possible that your motherboard only lets you lock the PCIe bus. I know for my motherboard it's in with the settings for the FSB and all that stuff, just explore your BIOS and look around until you click on either one of the things that says automatic and it gives you an option for either 100mhz for PCIe or 33/33.3mhz for the PCI bus, thats how I found it, it was labeled something weird but I was determined to find it so I just clicked on every settings of auto until I found the one that had a 100mhz option and I set it.

I could also be a BIOS version, do you have the latest BIOS installed on your motherboard?
 
i'll play around in the bios somemore, see if i can find it.

Whats async mode, i think i remember seeing that in there?
 
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