Which thing is limiting my overclocking?

I'm running a Duron 1 GHz @ 1.1 GHz (220 MHz FSB, stock 1.75V), ABIT NF7 2.0, 1 x 128 MB Generic PC2100 CL2.0 DDR (running @ PC1760 2.0-2-2-5). Using very cheap coolermaster hsf (alluminium based, no copper tip), without thermal pad/grease. Ambient temp 31C, mobo themp 40C, CPU Temp 50C (under full load @ 1.15 GHz)

My PC is 100% stable at 1.1 GHz. But when I go for 1.15 GHz, then the system is not stable. I got infinate loop after 1h 45min running prime95 in background, scanning all drives with NAV 2002 and playing ogg vorbis files with winamp. No BSOD, btw.

Which thing is limiting me? CPU Cooling, CPU voltage, Generic RAM or the CPU itself?

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no duron cores are great at overclocking...some better than others...

I am assuming you have tried to increase the cpu's vcore?

How did that effect the overclock...

If i put my k6 in a Ferrari it would be faster than your your pentium 4 or Athlon XP

oh...common man...pump up da voltz...hehe...

Really old cpus (larger transistors) could really take alot of volts...my .18 micron pIII can take 2.05 volts no sweat (from a 1.65 stock)...i am not recomending going that high...but in order to get anything out of that cpu i had to pump it up...i know that they are very different cpu's but without overvolting your cpu is really not gonna reach its potential...slap some thermal greese on there too...

If i put my k6 in a Ferrari it would be faster than your your pentium 4 or Athlon XP

what is the stock voltage...if the stock is 1.8 it should last for a while...i mean as long as it does not go above 60c under full load you should be fine...

the pIII i was overvolting was 2 or 3 years old...and it has lasted just fine...have been overvolting for a month...

If i put my k6 in a Ferrari it would be faster than your your pentium 4 or Athlon XP

exactly...your cpu will quickly tell you what it does not like...

If i put my k6 in a Ferrari it would be faster than your your pentium 4 or Athlon XP

spitfire just go for it...if it locks up no harm done...

Your cpu will have to hit over 100c to do any damage to it...

if it hits 60 or 65c...just back off...1 day running 65c will not kill a cpu...or significantly shorten its life...

If i put my k6 in a Ferrari it would be faster than your your pentium 4 or Athlon XP

yep. I know mine doesnt like it wehn i leave the CPU fan unplugged for 2 hours!

Still ran though! Even gaming for an hour!
Got a tad toasty though.

<b>Regards,
Mr no integrity coward.</b>

hehehe no... this was a overclocked TbredA XP1700+ @ 1750Mhz & 1.7v for 2 hours with no fan.

Fortunately i DO have a bigass MCX-462. Which adsorbed all the heat well.

<b>Regards,
Mr no integrity coward.</b>

heh. the copper block of the MCX-462 was burningly hot... and when i reconnected the fan it took almost 5 minutes to cool back down to normal levels.
ALOT of latent heat.
No damage done though. very nice.

And yes the tbredA's wernt as good... my XP1700+ can only really get up to 1833mhz... and its not 100% stable. 1750Mhz is really stable and runs cooler.

<b>Regards,
Mr no integrity coward.</b>

nice =)


go for 1.3ghz!!!! xD

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I assume you are talking about the Morgan core Durons only. The old Spitfire core Durons were champs at overclocking. My old Duron 600 overclocked to 1007 Mhz, a 68% overclock, with a lowend HSF (by today's standards).

It ran for a couple of years at that speed until I gave it to my nephew and downclocked it to only 900 Mhz. (Didn't think his family would put up with a noisy fan).

The Duron is still going strong, now three and a half years old.

<b>56K, slow and steady does not win the race on internet!</b>

Spitfire cores ranged from 600 Mhz to 950 Mhz (maybe it was 1000 Mhz).

Morgan cores range from 1000 Mhz up to 1300.

Don't know about SMP. I thought a mod was needed on either core but you'll have to ask someone else.

<b>56K, slow and steady does not win the race on internet!</b>

Many durons could run SMP anyway straight out of the box, or with a simple bridge join.



<b>Regards,
Mr no integrity coward.</b>

I've pushed my CPU to 1.2 GHz @ 1.80V (memory still @ 2.0-2-2-5). Once it locked up within 5 minutes, once it showed BSOD. Haven't run prime95, just booting windows and navigating through drives/folders. Now I'm back to 1.15 GHz @ 1.80V, it's rock stable again.

Temp. is not problem. Today ambient temp is lower 'cause of heavy rainfall for ~4 hours.

Will overvolting to 1.85V help? Yesterday 1.15 GHz @ default 1.75V was much more stable today's 1.2 GHz @ 1.80V. (1h 45 min prime95 vs. 5 min typical usage). What's the problem? Is my generic PC2100 CL2.0 unable to handle 2.0-2-2-5 @ PC1920? or the CPU itself is close to the limit?

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