View Full Version : First Attemp at O/C
Ok, here's what i did. I got my SK6 with Delta 8000rpm 50 CFM fan. O/C thru BIOS to 1544 (11.5 X 133). This is what i got:
Athlon T-Bird 1.4 GHz
ASUS A7A266 Ali chipset
2 120mm fans in side of case blowin in, 1 120mm in top blowin out
I don't know exactly what you pros use to get the idle/load temps, but this is what i got showin from MBM5. Says CPU temp is 41 C. All i'm runnin currently is IE6 and mIRC and other things in taskbar. Please let me know what you use to get load temps, i'm assuming this temp is idle, but I don't know. Like i said, i'm a newb at this.
Thanks again.
Oh i forgot, VCore is at default still, 1.8.
Cool! 144 free megaherz is a good thing!
I use MBM5 also, there is a load% indicator in there somewhere that will tell you how busy the cpu is. Any program in use can use up all the cpu cycles, but a lot of people around here use Seti@Home (http://www.ocsetiteam.com) ( or Folding @ Home) to get the thing up to temp and keep it there for testing........!
Looks like you have good case cooling and hsf; did you lap the sink? I shave off 4c or so usually.
I also let a system run a few weeks and try to bump it up some more. This has mixed results: sometimes I can go up another notch, sometimes not!
Have fun!
No I haven't lapped. I don't know the first step. Like I said I'm new to this. Thanks for your input. I'll have to look at the SETI and MBM5. Thanks. Any other input is appreciated.
I have heard from others that the Asus thermistors are not giving exactlyaccurate temp readings, a cheap alternative is called a Compunurse temp probe. About 16 bucks depending on where you get it. Then there are others as well, but you are not in the danger zone by your temps yet.:beer:
OK. I found prime95. Installed and started the torture test. Only had like 10 minutes to run it, wife came home, lol. Anyway, here's a pic of what the MBM said. How do I sit so far? Can I go higher without worries of heat?
http://members.aol.com/thumper1116/mbm.jpg
As MW521 said, some mobo's are not real accurate at temps. I haven't gotten anything fancy to check mine though: I just look for stability and develop my own history for each board- I have one (Abit KT7A) that shows hotter temps than the others.
I have found that all my rigs start to get unstable around 50c +- a couple. 45c would tell me that I need to get better cooling or not go higher. NOTE: I have seen others here say that their pc ran stable at 55c or 60c, so you either need guaranteed accurate temps or some history of that pc.
Looks like you have the right stuff, but here is one thought on airflow (which can be strange) try turning off one of the 120s in the side- you could be packing in more air than you can exhaust and causing dead air pockets. Might be better, might be worse- don't know till you try!
My comp was running perfectly stable at 70C CPU temp for almost a year, according to the mobo sensors. Heavy load could take her up to 80-85C, still stable. How about that? :D
AntmanMike
12-19-01, 03:46 PM
Make sure your using some Arctic Silver 2 or Artict Alumina Thermal Compound.
http://hardware.clanpages.com/CrystalORB/Alumina.jpg
Malakai
12-19-01, 04:17 PM
i noticed that your + 5v line is at 4.8. thats kinda low. it really shouldn't go below 4.9. At least thats what one of the o/c guides here at overclockers says. what kind of psu do u have? how many watts? it may be nothin, just a tip.
The Overclocker
12-19-01, 04:56 PM
Originally posted by Malakai
i noticed that your + 5v line is at 4.8. thats kinda low. it really shouldn't go below 4.9. At least thats what one of the o/c guides here at overclockers says. what kind of psu do u have? how many watts? it may be nothin, just a tip.
strangly enought , all the things i have seen show me that the 5 volt line is always low. mine never goes above 5.00
Although his 5v rail is sort of low it may be because it isn't a top of the line PSU and its a full load.
You should try many things to get those temperatures down as possible. Asus is very notorious for having their inaccurate temperature readings.
So lap the heatsink use Artic Silver thermal compound on the core or just silicone thermal paste.
Lap the heatsink with wet sandpaper, make sure your sandpaper is waterproof.
Start 400 grit to 600 to 800 to 1000 to 1500 and then 2000 if you really want that smooth finish. Make sure your wetting both the heatsink and the sandpaper when you lap since you don't want scratches on it thats why you are using wet.
Don't spend too much time sanding it down too much. Make sure the fan is off the heatsink when lapping so it doesn't get wet.
Make sure you clean the heatsink off with alcohol to get all the lil metal chunks off the bottom.
-Peace
AntmanMike
12-19-01, 07:35 PM
and make sure you usin a thermal compound!
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