thecheeseofmanynames

Im looking to OC(details here) my year and a half old 4800+ and my stock-ish cooler isn't gonna cut it. I'm only going to push it from 2.4ghz to 2.6-2.9. I have a feeling i don't need a Ultra 120 Extreme to cool that but stock wont do.
Any input is appreciated.

killa_concept

If you're on a budget, get a AC Freezer Pro 64 and lap it (and your CPU's IHS if you're an avid warranty voider like myself)

Personally, I've used this cooler with:
a lapped IHS opty 165 (2.85GHz---1.475V---idled @ 33C loaded @ 47)
an IHS-less opty 170 (2.9GHz--1.475V---idles @ 31C loads @ 45)

I would say that those good OCs and temps considering the voltages

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noobdown

logg you cpu in here
http://www.amdgeeks.net/overclockdatabase
it will tell you what other people have got for oc's on that cpu
if it a g1 stepping then one guy got 2900 mhz on a 570 chipset with a artic freezer pro

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thecheeseofmanynames

i personally dont know what lapping is, im new to OCing my cpu, until i bought this a year ago i was on an old AMD duron 1.3ghz for 8 YEARS ()
so explanations or a link would be appreciated


i figured out its F2, its an AM2, with 2x 1024kb cache, but im on vacation and dont know the watts right now, but i saw someone got its over 3ghz

where do i see there chipset or cooler?



rep+ for both of you

noobdown

lapping is when you sand down the cpu and/or heatsink to a mirror finnish to make it transfer heat better (usually takes about 8 hours)

using cpu z what are your core voltage reading

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thecheeseofmanynames

Can't find out right now, unplugged my pc for my vacation so i can't do remote access,but ill be back tomarrow thought
12 Hours in the car!
YAY

noobdown

sounds fun arent you lucky

some info on you cpu
http://www.bcchardware.com/index.php...3782&Itemid=40

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killa_concept

More specifically the intended goal is to create a completely flat surface on both the CPU and the HSF... the mirror finish is just for looks and not really necessary

Aftermarket heatsinks are generally already pretty flat, but the finish isn't too great... most people lap this first because it's not as "risky" as the CPU's IHS...

HOWEVER, the IHS is generally concaved (or convex? can't recall) so lapping it flat allows for outstanding contact and a sweet drop in temperature... alternatively, you can just pop the IHS off and expose the chip itself, allowing for even better temp decreases!

Lapping also doesn't necessarily take 8 hours (unless you're OCD like some of us)....
You can use:
200grit paper until the surface is flat
600 until the grooves caused by the 200grit are gone
then jump up to 1500 or 2000grit for a finish...
this method takes >1 hour and works just as well

Lastly, the temps I posted are with 1.475volts on both chips... they were both stable at 1.45volts however, and temps would have been even lower... I just bumped it up to 1.475 because temps allowed and a little extra voltage ensures total stability (in my mind)

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rottenotto

Cheese, if you're interested in lapping ( and you should be if yer gonna overclock ), you can get various grits of wet/dry sandpaper at 3guys auto stores, autozone, and ( dare I say it ?) , Walmart auto section. Start with 800 grit, work your way through various grits til you finish with 2000 grit.

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North Carolina Overclocker

killa_concept

Blasphemy! Blasphemy and heresy I say!

Also, I would suggest only using 1500 for your highest grit... most people are over zealous and spend 3x the amount they need to by snagging 1000, 1500, and 2000 (i only mention these as they're the hard to find auto paint grits - the rest are inexpensive and can usually be found at home)...

All you'll really need is:
200grit
400grit
600grit (or 800grit)
1500grit (or 2000grit)
glass surface (photo stand cover works perfectly)

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