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What are the best overclocking CPU's of all time?

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The one CPU that I was able to Over clock consistently was the AMD K6-2 line.. Here is a list of the CPU's that I have over clocked:

AMDs:
K6-2 300MHz - OCed to 600MHz Stable
K6-2 400MHz - OCed to 750MHz Stable (800MHz was only stable with a water cooler)
K6-2 500MHz - OCed to 975MHz Stable (Before I literally blow up the CPU)
Duron 1.8GHz - OCed to 2.6GHz Stable
Sempron 2800+ got that thing to 3.2GHz with Phase Changing Cooling
Athlon XP 2100+ got that one up to 3.2GHz as well
Athlon FX-60 running at 2.4GHz got her up to 4.5GHz with Phase Changing but it wasn't totally stable for I backed it down to 3.9GHz where it she performed perfectly with the PCC one and ran at a mighty cool 20 Degrees F

Intels:
Pentium 200mmx OCed to 370 and then the CPU cracked
Pentium II 400 up to (with PC150 VERY HARD TO FIND THAT CRAP) up to 900MHz before the CPU caught Fire... I thought that was funny... Almost burned down the lab...
Pentium III 1.13GHz (after I got it replaced for the recall) I got it to 2.5GHz with the PCC Unit
Pentium IV 2.4 Very unsuccessful in OCing it, only got it up to 2.7 and that was with OCZ DDR500 and the PCC UNIT. Anything after 2.7GHz the computer would hang on XP load
The P4 EE we got that sucker close to 5GHz (4.93 aint bad) but we had to push it and use the the PPC Unit well we paid for it, we were Successful in torching the PPC Unit and part of the lab, and one of the guys went to the Hospital with Burns and Shrapnel wounds... We got to 5GHz and pushed more out of it... We were able to get it to close to 6GHz (5.76GHz before the CPU blew up and took the Cooling until with it... Minor Explosion that shook the whole building we are in... I was pretty funny... We laugh about it all the time now...
Now we are trying to get out hands on a Intel Core 2 Quad Core and see if we can't break the 6GHz Mark... Lab Record is 5.83GHz without a massive failure...
 
Need some help with the poll guys. How about these?
This is a first attempt please advice on corrections, additions, etc...

Core 2 Duo E6300 (Conroe)
Celeron 300A
P4 1.6A (Northwood)
P4 2.4C (Northwood)
Athlon 3000+ (Winchester)
165 Opteron
Athlon 1700+ (Thoroughbred)
Athlon XP-Mobile
Celeron 1000A (Tualatin)
Celeron 566 (Coppermine)
64 bit Semprons
PIII 550 (Coppermine)
Celeron 2.0 Mobile
Athlon 64 2800+ (Newcastle)
Opteron 144
Athlon 64 2500+ (Barton)
Duron 600 (Spitfire)
Athlon 1000 (Thunderbird)
 
Originally posted by: Scorpion2k6
The one CPU that I was able to Over clock consistently was the AMD K6-2 line.. Here is a list of the CPU's that I have over clocked:

AMDs:
K6-2 300MHz - OCed to 600MHz Stable
K6-2 400MHz - OCed to 750MHz Stable (800MHz was only stable with a water cooler)
K6-2 500MHz - OCed to 975MHz Stable (Before I literally blow up the CPU)
Duron 1.8GHz - OCed to 2.6GHz Stable
Sempron 2800+ got that thing to 3.2GHz with Phase Changing Cooling
Athlon XP 2100+ got that one up to 3.2GHz as well
Athlon FX-60 running at 2.4GHz got her up to 4.5GHz with Phase Changing but it wasn't totally stable for I backed it down to 3.9GHz where it she performed perfectly with the PCC one and ran at a mighty cool 20 Degrees F

Intels:
Pentium 200mmx OCed to 370 and then the CPU cracked
Pentium II 400 up to (with PC150 VERY HARD TO FIND THAT CRAP) up to 900MHz before the CPU caught Fire... I thought that was funny... Almost burned down the lab...
Pentium III 1.13GHz (after I got it replaced for the recall) I got it to 2.5GHz with the PCC Unit
Pentium IV 2.4 Very unsuccessful in OCing it, only got it up to 2.7 and that was with OCZ DDR500 and the PCC UNIT. Anything after 2.7GHz the computer would hang on XP load
The P4 EE we got that sucker close to 5GHz (4.93 aint bad) but we had to push it and use the the PPC Unit well we paid for it, we were Successful in torching the PPC Unit and part of the lab, and one of the guys went to the Hospital with Burns and Shrapnel wounds... We got to 5GHz and pushed more out of it... We were able to get it to close to 6GHz (5.76GHz before the CPU blew up and took the Cooling until with it... Minor Explosion that shook the whole building we are in... I was pretty funny... We laugh about it all the time now...
Now we are trying to get out hands on a Intel Core 2 Quad Core and see if we can't break the 6GHz Mark... Lab Record is 5.83GHz without a massive failure...
Click to expand...

Hmmm, All I have to say was the original K6-2 core could not exceed 600MHz!
The 300Mhz up to 550MHz made little difference on the overclock limit.

There was the K6-2+ core and K6-3 which might hit 700Mhz, but that was very rare.

 
Intel 8088 from 4.77 to 7 (46.7%) Required soldering/desoldering timing crystals on mobo
NEC V20 from 4.77 to 10 (109.4%) Required soldering/desoldering timing crystals on mobo
i386 from 16 to 25 (56%)
i486sx from 25 to 33 (32%) <-- mobo with soldered on CPU was $429 in early 90's!
AMDx586 (486 clone) from 120 to 160 (33%)

A zillion Pentiums, K6's, K6-2s and some K6-3s (early models, crappy overclockers)
Pentium-166MMX from 166 to 300 (33.6%)

Celeron 266 (NO L2 CACHE VERSION) from 266 to 400 (50%)
Celeron 300a (many) from 300 to 450/504 (50%-55%)
Pentium2 (many)(SL2W8 stepping) from 300 to 517 (72%)
Celeron (many) from 366 to 550/601 (dualies on Abit BP6) (50%-64.2%) [almost NONE would go above 550...and now almost all those 550's have ceased to function)
Celeron 550 to 910 (64.5%)
Slot A Athlon 700 to 900 (28.5%)
A zillion Duron 600's to 900-1000 (50%-66%)

And like everyone else, lots of newer CPUs to all sorts of speeds, though I don't really have any super current ones.

My current gaming box is an Athlon-M 2200 OC'ed to 2.4 or a bit more. (around 40-50%)

The box I'm replacing that with is a $99 combo special from newegg with a S754 3400+ (2400) @ 2733 (14%) but it was a challenge because the mobo has almost no voltage selection. I had to short out holes in the socket with wire to get a voltage high enough to get that overclock.

Guess since I don't game too much any more (one night per week at most) I don't feel the need to constantly upgrade and overclock much.

I also still have some old machines that I just can't let go of. I've got a BP6 running dual celerons at 533 running Linux as a backup server for the family.

I've got an old KT7a-RAID (KT133a) mobo with a barton core CPU running at 1.7ish that is just rock solid and is a great machine for hooking up drives for ghosting and just generally testing things out like new Linux distros and such because the hardware is well supported.

My current gaming box that I'm retiring is a Shuttle box that can't really be upgraded any further (CPU wise) but It's such a sweet little box (and doesn't have much resale value) that I can't bear to get rid of it. Perhaps it will become a little PVR or something... dunno.

Joe

 
Originally posted by: Scorpion2k6
The one CPU that I was able to Over clock consistently was the AMD K6-2 line..

K6-2 500MHz - OCed to 975MHz Stable (Before I literally blow up the CPU)
...
Pentium 200mmx OCed to 370 and then the CPU cracked
...
Pentium II 400 up to (with PC150 VERY HARD TO FIND THAT CRAP) up to 900MHz before the CPU caught Fire... I thought that was funny... Almost burned down the lab...
...
The P4 EE we got that sucker close to 5GHz (4.93 aint bad) but we had to push it and use the the PPC Unit well we paid for it, we were Successful in torching the PPC Unit and part of the lab, and one of the guys went to the Hospital with Burns and Shrapnel wounds... We got to 5GHz and pushed more out of it... We were able to get it to close to 6GHz (5.76GHz before the CPU blew up and took the Cooling until with it... Minor Explosion that shook the whole building we are in... I was pretty funny... We laugh about it all the time now...
Click to expand...

Those tales get taller as the years go by, eh?

Anyways, I was never super successful with AMD K6 and K6-2 chips. Oh, they overclocked okay, but nothing spectacular... for me at least.
 
I think I'm going to forgo the anecdotal "I overclocked a Pentium 90 to 900MHz" evidence and go with widely reported and reviewed overclocks.

Anyone know the core code names for the ones I don't have in parenthesis?

Updated list:
Core 2 Duo E6300 (Conroe)
Celeron 300A
P4 1.6A (Northwood)
P4 2.4C (Northwood)
Athlon 3000+ (Winchester)
165 Opteron
Athlon 1700+ (Thoroughbred)
Athlon XP-Mobile
Celeron 1000A (Tualatin)
Celeron 566 (Coppermine)
64 bit Semprons
PIII 550 (Coppermine)
Celeron 2.0 Mobile
Athlon 64 2800+ (Newcastle)
Opteron 144
Athlon 64 2500+ (Barton)
Duron 600 (Spitfire)
Athlon 1000 (Thunderbird)
Pentium 4 805 "D"
Xeon LV 1.6
Celeron 266 (no L2 cache)
Celeron 550
Pentium II
 
Originally posted by: Zap
Originally posted by: Scorpion2k6
The one CPU that I was able to Over clock consistently was the AMD K6-2 line..

K6-2 500MHz - OCed to 975MHz Stable (Before I literally blow up the CPU)
...
Pentium 200mmx OCed to 370 and then the CPU cracked
...
Pentium II 400 up to (with PC150 VERY HARD TO FIND THAT CRAP) up to 900MHz before the CPU caught Fire... I thought that was funny... Almost burned down the lab...
...
The P4 EE we got that sucker close to 5GHz (4.93 aint bad) but we had to push it and use the the PPC Unit well we paid for it, we were Successful in torching the PPC Unit and part of the lab, and one of the guys went to the Hospital with Burns and Shrapnel wounds... We got to 5GHz and pushed more out of it... We were able to get it to close to 6GHz (5.76GHz before the CPU blew up and took the Cooling until with it... Minor Explosion that shook the whole building we are in... I was pretty funny... We laugh about it all the time now...
Click to expand...

Those tales get taller as the years go by, eh?

Anyways, I was never super successful with AMD K6 and K6-2 chips. Oh, they overclocked okay, but nothing spectacular... for me at least.
Click to expand...

For those who think that the speed ratings are made up. Think about this PC150, and 5.5x multiplier. With a Watercooler to keep it cool, I was able to get it to 950MHz (not 975MHz like I had listed, sorry about that)...
My guys at the lab handed me a couple of AMD Athlon 5600+'s on saturday, and told me to see what I get out of them... So I am in the process of testing that out this weekend. Hope to get them to about 5GHz+ if we can get another Phase Changing Unit... Were are working on that over the holiday weekend... I won't be back in the lab until Jan. 11th... Taking my Vacation time. I will keep you all updated on what goes one...
 
Originally posted by: Scorpion2k6
Originally posted by: Zap
Originally posted by: Scorpion2k6
The one CPU that I was able to Over clock consistently was the AMD K6-2 line..

K6-2 500MHz - OCed to 975MHz Stable (Before I literally blow up the CPU)
...
Pentium 200mmx OCed to 370 and then the CPU cracked
...
Pentium II 400 up to (with PC150 VERY HARD TO FIND THAT CRAP) up to 900MHz before the CPU caught Fire... I thought that was funny... Almost burned down the lab...
...
The P4 EE we got that sucker close to 5GHz (4.93 aint bad) but we had to push it and use the the PPC Unit well we paid for it, we were Successful in torching the PPC Unit and part of the lab, and one of the guys went to the Hospital with Burns and Shrapnel wounds... We got to 5GHz and pushed more out of it... We were able to get it to close to 6GHz (5.76GHz before the CPU blew up and took the Cooling until with it... Minor Explosion that shook the whole building we are in... I was pretty funny... We laugh about it all the time now...
Click to expand...

Those tales get taller as the years go by, eh?

Anyways, I was never super successful with AMD K6 and K6-2 chips. Oh, they overclocked okay, but nothing spectacular... for me at least.
Click to expand...

For those who think that the speed ratings are made up. Think about this PC150, and 5.5x multiplier. With a Watercooler to keep it cool, I was able to get it to 950MHz (not 975MHz like I had listed, sorry about that)...
My guys at the lab handed me a couple of AMD Athlon 5600+'s on saturday, and told me to see what I get out of them... So I am in the process of testing that out this weekend. Hope to get them to about 5GHz+ if we can get another Phase Changing Unit... Were are working on that over the holiday weekend... I won't be back in the lab until Jan. 11th... Taking my Vacation time. I will keep you all updated on what goes one...
Click to expand...

Easy on the BS Skorpion. Here's a tip - BS in moderation, it makes you more believable. 😉
 
The first chip that came to mind for me was the celery 300a too. That had to be a landmark in overclocking and, in my opinion, started a huge following. Man all this talk about overclocking is really getting me hyped about building my next rig.
 
great thread!

I ran my PIV northwood 1.6a @ 2.3 for 99% of it's life. It would run higher {I think I could get it to post @ 2.7} but with diminished returns at that level.

It is fun to see the history of overclocking fervor and to know that even now that I could afford the faster chip I'd rather buy smart and have fun with some oc.
 
Originally posted by: Scorpion2k6
Pentium II 400 up to (with PC150 VERY HARD TO FIND THAT CRAP) up to 900MHz before the CPU caught Fire... I thought that was funny... Almost burned down the lab...
Click to expand...

You are my hero.

Personally, I'm w/bob4432 & for reasons obvious prefer to run stock Vcore. Even w/that limitation, socket 754 Sempies have provided me the gretaest level of OC satisfaction - decent OC with bearable/manageable heat/noise.

 
Okay, I am not BSing you guys here. I work at a place where we push the limits of the hardware we get in... I miss type the before when I said that I was handed 5600+ there were 5200+... Sorry about that. I am still getting use to this new laptop.... If I can find the video that we made of all the Overclocking project that we do I will gladly put a link of it on, here... But that was over 6 years ago, so I do not think that we still have it... We only have so much room to work with... Not that one tape will take up a lot of room, but when your make 100's of them a year they add up quickly...
 
Originally posted by: Scorpion2k6
Okay, I am not BSing you guys here. I work at a place where we push the limits of the hardware we get in... I miss type the before when I said that I was handed 5600+ there were 5200+... Sorry about that. I am still getting use to this new laptop.... If I can find the video that we made of all the Overclocking project that we do I w ill gladly put a link of it on, here... But that was over 6 years ago, so I do not think that we still have it... We only have so much room to work with... Not that one tape will take up a lot of room, but when your make 100's of them a year they add up quickly...
Click to expand...

I'll apologize if you can back up your incredible claims.....

But they really sound like a load of bull!
 
This is hard to quantify.

My old P2-300 running at 504Mhz was a serious rush. Had a Celeron 566 running at 850 for a long time... that was sweet. Then the Northwood 1.8A at 2.4Ghz came along and was nice and still very exciting. Skip several chips here including a Barton 2500....

Running my E6400 2.13 at 3.2 is also exciting and the benchmarks tell me it's out of control but honestly, for most stuff, it's hard to tell that much of a difference because the base chip is that fast.

My old P2-300 was probably the hugest bang for the buck given the timeframe and value of the overclock.

The best upgrade ever CPU-wise definitely has to be the C2D chip. Even at their slowest speeds, they pretty much slaughter every other CPU ever made.
 
Originally posted by: Scorpion2k6
My guys at the lab handed me a couple of AMD Athlon 5600+'s on saturday, and told me to see what I get out of them... So I am in the process of testing that out this weekend. Hope to get them to about 5GHz+ if we can get another Phase Changing Unit... Were are working on that over the holiday weekend... I won't be back in the lab until Jan. 11th... Taking my Vacation time. I will keep you all updated on what goes one...
Click to expand...

If you get 5 ghz out of K8... I'll eat my own ******.

 
Originally posted by: Scorpion2k6
Okay, I am not BSing you guys here. I work at a place where we push the limits of the hardware we get in... I miss type the before when I said that I was handed 5600+ there were 5200+... Sorry about that. I am still getting use to this new laptop.... If I can find the video that we made of all the Overclocking project that we do I will gladly put a link of it on, here... But that was over 6 years ago, so I do not think that we still have it... We only have so much room to work with... Not that one tape will take up a lot of room, but when your make 100's of them a year they add up quickly...
Click to expand...

Err... you work at an overclocking facility?

It's not that hard to provide a CPU-Z screenshot you know, even if you need to Photoshop it. 😉

Any 'proof' will give you more credibility than blank words.
 
There was someone in Video a while ago who had overclocked an old ATI card (7500 or something) by something like 400% using a CPU heatsink. I have no idea how stable it was though.

I would think that the E6300 should be the top CPU here, at least until the Allendales come out.
 
Originally posted by: Scorpion2k6
The one CPU that I was able to Over clock consistently was the AMD K6-2 line.. Here is a list of the CPU's that I have over clocked:

AMDs:
K6-2 300MHz - OCed to 600MHz Stable
K6-2 400MHz - OCed to 750MHz Stable (800MHz was only stable with a water cooler)
K6-2 500MHz - OCed to 975MHz Stable (Before I literally blow up the CPU)
Duron 1.8GHz - OCed to 2.6GHz Stable
Sempron 2800+ got that thing to 3.2GHz with Phase Changing Cooling
Athlon XP 2100+ got that one up to 3.2GHz as well
Athlon FX-60 running at 2.4GHz got her up to 4.5GHz with Phase Changing but it wasn't totally stable for I backed it down to 3.9GHz where it she performed perfectly with the PCC one and ran at a mighty cool 20 Degrees F

Intels:
Pentium 200mmx OCed to 370 and then the CPU cracked
Pentium II 400 up to (with PC150 VERY HARD TO FIND THAT CRAP) up to 900MHz before the CPU caught Fire... I thought that was funny... Almost burned down the lab...
Pentium III 1.13GHz (after I got it replaced for the recall) I got it to 2.5GHz with the PCC Unit
Pentium IV 2.4 Very unsuccessful in OCing it, only got it up to 2.7 and that was with OCZ DDR500 and the PCC UNIT. Anything after 2.7GHz the computer would hang on XP load
The P4 EE we got that sucker close to 5GHz (4.93 aint bad) but we had to push it and use the the PPC Unit well we paid for it, we were Successful in torching the PPC Unit and part of the lab, and one of the guys went to the Hospital with Burns and Shrapnel wounds... We got to 5GHz and pushed more out of it... We were able to get it to close to 6GHz (5.76GHz before the CPU blew up and took the Cooling until with it... Minor Explosion that shook the whole building we are in... I was pretty funny... We laugh about it all the time now...
Now we are trying to get out hands on a Intel Core 2 Quad Core and see if we can't break the 6GHz Mark... Lab Record is 5.83GHz without a massive failure...
Click to expand...

*cough*Bullshit*cough*
 
I too would like to see the video footage (for the laughs alone). I actually do believe you guys hit those speeds (if you read stuff at xtremesystem, those clocks are attainable), however, they are useless because they are not 24/7 stable and thus you can't actually do anything with your insanely overclocked rigs. My question-what board were you using with the FX-60 to hit those speeds? That is one clock I certainly question because it is 400mhz higher than the record...http://valid.x86-secret.com/records.php, and it is a dual core cpu, not the single cores those guys were hitting. What lab do you work in? You guys should have a team if you are seriously hitting those clock..motherboard manufacturers will pay you to promote their product lol.

Anyway, down here in the real world, I'm sticking with my trusty Opty 165 cranking 2.7ghz (50%) on stock everything cpu wise, 15 hours Orthos stable. I'll look at C2D maybe next year...at this point a DX10 GPU and a better monitor are what I need.
 
The P4 EE we got that sucker close to 5GHz (4.93 aint bad) but we had to push it and use the the PPC Unit well we paid for it, we were Successful in torching the PPC Unit and part of the lab, and one of the guys went to the Hospital with Burns and Shrapnel wounds... We got to 5GHz and pushed more out of it... We were able to get it to close to 6GHz (5.76GHz before the CPU blew up and took the Cooling until with it... Minor Explosion that shook the whole building we are in... I was pretty funny... We laugh about it all the time now...
Click to expand...

I might have actually believed you if you hadn't posted this. :roll: :laugh:
 
Even though i never had a 300a@450, i skipped that chip

PentiumMMX 166@200 in a compaq presario!
Celeron 366@550 BX6
Celeron 600@928 BX6*
P4 1.6a@2.4 Asus P4B266C
P4 2.4b@3.0 Abit BX7
P-D 920 2.8@3.2 Gigabyte 975X
E6600 2.4@3.5 Abit AB9 Pro

 
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