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Overclocking help.

C

Casper312

[H]ard|Gawd
Joined
Aug 29, 2008
Messages
1,762
Hello

So im basically trying to reach the limit of my 3800x2, Im currently stress testing it @ 2.8ghz @ 1.5V. So far the load temps are under 50C. So lets see if its stable for more than an hour, then im a leave it stress testing overnight.

-But to the questions at hand, Anyone remember their old 3800x2 or people who still own them, what was your most highest clock with what voltage settings? I understand some batches clock higher than others, but im just trying to figure out whats a good place to leave it at.

-How much voltage is too much? Im guessing im hovering over the sweat spot?

-My motherboard currently is running @ 1123.8 Ht, Should i give a voltage bump or leave it if cpu is stable? Stock is 1k even.

-Im currently using the small FFTs option on orthos, if everything turns up stable on this setting, im good or not?

-One thing thats bugging me, is how hot my gigabyte motherboard runs (Around 71C), Is there any aftermarket cooler that is low profile but you can still have the newer cards on? My current 9800gtx is hovering directly over the cooler, so im guessing no?

thanks for any help, i have been running my 3800x2 stock for a bit, so might as well overclock the hell out of it, before i upgrade to a newer rig early next year.
 
My Opty 165, the 3800x2 equivilant, did 2.9 @ 1.35v. Though I did have an exceptional chip, 3.0Ghz was about the limit I could take it. It would POST at 3.1Ghz 1.5v, but it wasn't very stable. I wouldn't take it much past 1.5v. I think 1.6v is the limit for that chip, though in my experience OC'ing them the chip will hit it's speed limit before you run out of voltage headroom.

The trick to OC'ing those x2's is having good quality RAM. That and keeping your core temps below 60.
 
so pretty much @ 2.8ghz, @ 1.55V i ran just cpu stress test and i got errors in 30 mins. the next voltage setting on my mobo is 1.65v or 1.6v, so im guessing it cant do 2.8ghz =/


i also have another question, i think it might be stable @ 2.7ghz, but i have to lower the devider to i think 2:1:33 which puts my ram running @ around 192mhz? i think, normally 200. Would this be a major problem or would the cpu being clocked higher even it out?
 
upped the voltage to 1.65v in the mobo, so far 2.8ghz @ 1.55 is only stable for 50ish min

i dont plan to leave it @ 1.65v, but im a see if its stable for atleast an hour. temps so far are good, 39C idle 53C load
 
have you checked to see if the memory could be the reason your not stable?
if you use cpu-z it will give you the correct speeds on your memory and what divider your using..

since its not a 65nm or 45nm processor 1.6v should be fine.. i run my sempron 3100+ socket 754 at 1.58v@ 2.7ghz but had it running at 1.75v at 3.1ghz on water for about 6 months before i took the water cooling off..
 
sirmonkey1985 said:
have you checked to see if the memory could be the reason your not stable?
if you use cpu-z it will give you the correct speeds on your memory and what divider your using..

since its not a 65nm or 45nm processor 1.6v should be fine.. i run my sempron 3100+ socket 754 at 1.58v@ 2.7ghz but had it running at 1.75v at 3.1ghz on water for about 6 months before i took the water cooling off..
Click to expand...

Im currently testing only the cpu, to see how long its stable, and so far @ 2.8ghz @ 1.65v (Cpuz/Speedfan shows 1.6V). Been 59 minutes and its stable so far, and temps dont seem that bad. Another thing is, my memory is currently running @ stock 200mhz (PC3200). So how can that be causing unstability problems? Unless it has something to do with the divider.

Another question i have is, I was reading speedfans cpu temps from the core, which is 53C right now for ''Core'', Heres a pic, kinda confused, starting reading around and got alot of mixed findings.

http://s49.photobucket.com/albums/f278/macpop/?action=view&current=tempssettings.jpg

So far, 1 Hour 8 mins stable, Whats the good timeline to know when its stable? Im guessing 24 hours? hehe

thanks for any help :D
 
use coretemp for your cpu temps.. also your instability could be caused by you not turning the auto setting off for the HT link.. if it craps out on you again.. set it to 4x(that is if it shows your highest option as 5x) because your exceeding the maximum HT link speed which is probably causing problems..

also some memory do not like going under a divider of 166mhz.. for example the lowest divider i can use on my kingston hyperX pc-3200 is 150mhz.. i cant use one any lower then that otherwise it becomes unstable..

a good time line is anywhere around 18-20 hours..
 
sirmonkey1985 said:
use coretemp for your cpu temps.. also your instability could be caused by you not turning the auto setting off for the HT link.. if it craps out on you again.. set it to 4x(that is if it shows your highest option as 5x) because your exceeding the maximum HT link speed which is probably causing problems..

also some memory do not like going under a divider of 166mhz.. for example the lowest divider i can use on my kingston hyperX pc-3200 is 150mhz.. i cant use one any lower then that otherwise it becomes unstable..

a good time line is anywhere around 18-20 hours..
Click to expand...

Ht link is currently set to x4, x5 it wont boot of course. Yea its looking like my cpu is gonna be stable at these settings, im gonna have to run mem tests overnight.

Coretemp was showing temps of 50C for core 0 and 69C for core 1. Im guessing i found the limit for my cpu
 
The enemy of overclocking is always heat. your "motherboard" temperature is a little bit of a misnnomer, beacause obviously some parts of your motherboard are cooler than others.

That said, the 2nd or 3rd hottest chip (depending on your graphics card) is usually the northbridge, so putting somethign aftermarket on that (or just ghetto modding a fan onto it) will frequently lead to an extra hundred MHz.

In terms of aftermarket north bridge coolers which dont interfere with your graphics card, the only one that comes to mind is Thermalrights HR-05, but there have gotta be others. Once you get a 60mm fan on that cooler it really shines.
 
i dont think the thermalright one will fit, theres like no clearance between it and the graphics card, like right now its almost sitting right on top of the graphics card, which is makes me wonder. and like this pic shows, unless the cooler bends enough to clear my 9800gtx, then i doubt it, it will fit.

http://img401.imageshack.us/my.php?image=motherboardproductimagesp5.jpg

Anyways, how are my temps looking? around 38C average idle and 58-60C load.
 
My MSI K8N was the same way with the northbridge being at the end of the PCIe slot. I actually had to use zip ties to slightly bend the vid card out of the way, otherwise the end of the card would hit the fan on the NB cooler.

I'm not sure the Thermalright cooler will fit properly. It is off-set, but the heatsink block itself is rather thick and might not allow the vid card to seat fully.

My suggestion is to ghetto mount a 40mm fan beside the NB and just have it blow across the stock cooler.
 
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