Applebred Duron overclocking results thread

[john240sx]

i thought it would be good to have a thread for how they overclock. post your stepping, overclocked speed, multiplyer/fsb, voltage used and if you did the 256k L2 mod (if you did the L2 mod and it didn't work please say so).

i would like to get enough results to see what speed they consistantly hit (there's always a few exceptions but it will give us an idea of what we might expect from them). so far it seems like 2.2 - 2.4Ghz is normal with good cooling, looks very promising so far.

i'll be picking up a 1.6Ghz applebred tommorow afternoon (hopefully the microcenter by me carries them) and will add my results.

edit: i forgot something, if you could mention what kind of cooling your using that would be helpful also :D

[Minjin]

I'm very interested in this as well. In particular, please post how high you got with stock voltages for those of us that like to run a cool system. The 1.8 seems to be available in europe but not here yet. I wonder if there is any real oc'ing difference between 1.4 and 1.6.

Thanks.

Mark

[Milkman]

Applbred 1.6, I was able to hit 2.5 before the L2 cache mod with 1.775 volts, after enabling the L2 I still get as high as 2.43 with 1.82 volts, I have run it up to 180 fsb and also am currently at 2324 14x166 With 1.8 volts. Stepping is MiXiB 0336 bought from Newegg this past week.

[Codeman05]

what exactly is the "Applbred" if you don't mind me asking?

[modenaf1]

milkman, double post. Its been acting very wierd lately, ive gotten, and been sending like hextouople PM's, I sent a moderator here 25 and i only clicked it once! :eek: thank God I was able to cancell them before he saw his inbox :eek:

anyways, going back on topic, reminder, if you can, please post all the info, like the "DLT3C" part of it and the "XPMW" after the week. Those were just examples. Also, i like Milkman's idea, since these are the "thorton" cores, if you decide to mod the chip to get the extra 256Kb of L2 cache, it would be great to know what it overclocked to with or without the cache mod.

I find this very interesting, could we have it temporarilly stickied?

-f1

EDIT Codeman05, you beat me :p

anyways, applebread is the core. For example, there was the palimino core, .18micron, the tbred A core, .13 micron, the thouroughbread B core, .13 micron but with an added layer of something allowing for greater overclock and stability, then there is the barton, about the same as the tbread B but with 512 L2 cache vs. 256. Then there is the thornton, these are barton cores but the extra cache is disabled for some reason, the Applebread AFAIK is a thorton core, but just for the duron.

feel free to correct me if i am wrong,

Cheers!
-f1

[Milkman]

Chip is a 0336 DLV1C, I believe it's a just a Tbred B core with L2 disabled, the core isn't long like a Barton core is, Yeah things have been acting weird here, it only appreared to post once.

-Milkman

[Codeman05]

cool, hadn't heard about those. Thx for the info :D

[Minjin]

Simply put:

Thortons are Bartons with part of the cache crippled
Applebreds are Thoroughbreds with part of the cache crippled.

See the similarity in names now?

Both obviously have the potential of re-enabling the "bad" cache. Of course, what has yet to be decided is whether or not that affects the maximum overclock to the detriment.

But this thread is concerned with the Applebred Durons.

Mark

[Milkman]

Hasn't affected mine negativly, I am almost to 2400 stable with 1.82 volts( Slightly more then before L2 mod) but still pretty decent as far as I am concerned.

[Rezin777]

Milkman, did you run any benchmarks before enabling the cache? Using more voltage to achieve a lower core speeds is a negative impact in my book. That is unless it performs better.

[Milkman]

I did and found it to have decent bandwidth at higher clockspeeds,although enabling the L2 cache made a huge differance. I was able to get to 2200 with L2 at 64kb and 1.575 volts,max I got was 2500 but it required 1.85 volts to stabalize it, I am at 2369 with 1.80 volts and stable now( Folding etc..)

[john240sx]

here's a thread from the amdmb forum. somewhere in this thread there's a comparision of the 1.6Ghz Applebred @2Ghz compared to a XP1700 @ 2Ghz, the person that did the comparision ran the duron with the stock 64k L2 cache and again with the 256k L2 cache... the results were surprising.

there's also a whole bunch of info regarding this chips, definatly worth checking out.

http://www.amdforums.com/showthread.php?threadid=259675&highlight=applebred

it's a very long thread and i don't remember exactly where the comparision was, if anyone needs me to pin point it on ambmb then i'll do it when i get back from microcenter (hopefully i'll return with a 1.6Ghz Duron :D ).

[Shade00]

We've been discussing Durons there for a while. We skewed off and started talking in French towards the end, but it's getting back on topic. Abducted, the thread starter, is running his Duron 1600 at 2460 with 1.93v IIRC. Also, there were several reports lately of folks hitting 2100-2200 on default volts. I've still got my Duron 1400 sitting in the package... I haven't had time to play with it.

[john240sx]

i'm back with my new chip, it's a MIUHB 0336, i think it's newer then any other one i've seen so far (the newest week anyway, the highest i seen before was 0334). (edit: milkman's duron is the same week but a different stepping, i didn't see that before)

it's going to be a couple hours before i get to mess with it as i have some packing to do right now, when i get a chance to sit down with it i'll post my results as i get them :D

edit: i will just keep editing this post instead of posting each time. before anyone asks, i'm not raising the FSB yet because i want the CPU to top out and don't want any other variables.

after installing the CPU (and making sure it was stable at it's default speed) i rebooted and started messing with the mulitpliers, as of now i'm at 2Ghz (15 x 133) using the default 1.5Vcore and idling at 31C.

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i had to bump the voltage in the bios up to 1.55 to use the 16x (2.13Ghz) multi. technically, the NF7-S undervolts slightly so now i'm really at 1.5V (i was actually at 1.45V at 2Ghz).

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to use the 17x (2.26Ghz) multi i really had to bump up the voltage. it's set to 1.65 in the bios for an actual 1.6V, wasn't expecting to have to go up a full tenth for that step but it's still running cool, idleing at 35C

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18x133, i'm at 2.4Ghz at 1.7Vcore. i'm not done yet but i set myself a limit on the vcore to 1.8V, i will not exceed that voltage under any circumstances as my cooling isn't all that great.

[john240sx]

final results BEFORE the 256k L2 cache mod
2Ghz @1.45V
2.13Ghz @ 1.5V
2.26Ghz @ 1.6V
2.4Ghz @ 1.7V

judging by how much i was able to overclock before needing to raise the voltage i'm guessing this chip will run at it's default speed with about 1.35 to 1.4Vcore, if it will run with that low voltage it should be quite easy to use it in a silent system :)

i don't have a lot of time to tinker with it so i'm going to have to stop at 2.4Ghz before doing the L2 cache mod. the good news (for me) is this duron doesn't seem to mind running a 200Mhz fsb, right now i'm running at 2.4Ghz (12*200).

now i'm off to find my trace repair pen and do the 256K L2 cache mod.

[johnoh]

if you haven't done the L2 cache mod yet you might note a coulpe benchmark scores first to see how they compare at the same ghz once the extra cache is enabled.....

[john240sx]

well, i would have done that except i was too impatient to try the L2 mod that i didn't run anything except 3DMark2K1 a couple times.

i did get the L2 mod to work (after about an HOUR! me and those bridges don't get along very well). right now i'm running at 2Ghz w/1.5Vcore (10x200) to make sure the cache isn't bad, once i stress this CPU for a little while i'll start overclocking it higher again and see where i top out at (i'll be happy at 2.4Ghz again, even if it takes a little more voltage then before).

[john240sx]

final results AFTER the L2 mod

2Ghz @ 1.45VCore
2.13Ghz @ 1.55VCore
2.27Ghz @ 1.65VCore
2.4Ghz @ 1.75VCore

currently running at 2.4Ghz (12x200) @ 1.75VCore

required .05 more volts after 2Ghz but still ran at 2Ghz with the default VCore (as i said earlier, the NF7-S undervolts so 2Ghz at 1.45V isn't bad at all). overall, i'd say this is the best $43.49 i've ever spent on a computer..... and a 50% overclock is pretty sweet :D

this 'duron' might have a bit more left in it but that will have to wait until tommorow.


btw, my cooling is provided by a koolance PC601B w/CPU200G waterblock. this, imo, is about equal to higher end air cooling (without using a tornado at full speed),if put in a better setup this chip could probably pull 2.6Ghz (i would really love to see one of these in a prometia).

*UPDATE* it wasn't 100% stable at 2.4Ghz and 1.75VCore, i bumped the VCore up to 1.775 and have been folding and gaming for the last 12 or so hours with no problems.

[tediber]

just a simple question how do you do the L2 Mod ...... i tried it on a Duron1400 and had no success ..... do you have to scratch it or something cause it seemed to me the bridges were hmmm weren't clear to me which pairs to connect .....

[Milkman]

You connect the last L2 bridge, the new packaging may require scratching the surface of the pins, I use an exacto knife to scratch them, then cover them with tape and fill the gap with crayon, then cover the pins near by and connect with defogger, worked great for me.

[Milkman]

Here is a great Link for you (http://www.xbitlabs.com/news/cpu/display/20030908004407.html)

[tediber]

damn it i knew i did something stupid hehehehe .... as i couldn't clearly see any golden dots ........ connected the wrong dots hehehehehe

[tlrocha]

Hi,

I got a 1400 MIXIB0336XPMW with the new packaging. Connecting the two L2 bridges is very simple (just fill the laser gaps with paint), but my results were disappointing, compared to yours.

I got 2200@1.775v and 2300@1.9v (with 8RDA+ and SLK800).

I also got a Thorton xp2000+ that managed to "upgrade" to barton (using the same method). I'm at 2400@1.875v

But your results impress me... I used to get 2400@1.675 with my 1800+ DLT3C. Maybe i got a bad duron... :(

[Jarhead7236]

tlrocha,
what's the stepping on your 2000+....i gotta see if i can find one around here....thanks.

[tlrocha]

It's an AQXEA033x (actually, it's working right now and this is what I can remeber, but it is a late Barton stepping).

[kb9skw.net]

er in my sig

[tlrocha]

Update:

my thorton's specs:

AXDC2000DUT3C "9"
AQXEA0332RPMW

they're very difficult to find...

[pwned2k]

i got a duron 1.6 coming in sometime this week, along with a 947U to cool it off.. :) ill post the results for sure. hope to gawd i dont get a applebred A.. i'd be pretty upset.

[mamisano]

I have a Duron 1600+ from NewEgg, don't have stepping info on hand.

Installed into a Leadtek NF2 Micro-ATX using a stock 2500+ HS/F and stock voltage it is able to do 2070Mhz. This is for a HTPC, so I won't be trying to go any higher, even though them motherboard allows +.15v on the core.

Can't go wrong for $42, may pick up another and throw it in my NF7-S rig just to play with ;)