3200+ Winchester up to 4100+ stable on ASUS A8N SLI Deluxe!

MADMAX23

Senior member
Apr 22, 2005
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Hi you guys!
After long heavy tests I finally got it, my 3200+ Winnie caps at 2.6 Ghz, that?s 4100+ according to AMD. Everest Home Edition also recognises it as 4100+!

My current BIOS settings are these:
HTT: 289 Mhz
CPU Multiplier: 9x
CPU Vcore: 1.450v
LDT Multiplier: 3x
Ram Max Memclock (Divider): DDR333
Ram Timings: 2-3-3-7 1T running at 236.5 Mhz (PC 3800)

Note: I do not use any ASUS/nVIDIA software for overclocking such as nTUNE or AiBooster. I have not even installed them, the best results are achieved with the Bios config.

I have been working with my Asus A8N SLI Deluxe and my Winnie for a time at 2.4 Ghz (240 HTT x 10, Vcore:1.4v) in 1:1 ratio with my Ram running also at 240 Mhz 2.5-3-3-7 1T.
In Sisoft Sandra 2005 SR1 the results obtained in the Memory Bandwidth Benchmark, with this config, were these: 6683/6609 Mb/s.

I was afraid of a lower memory performance with my new configuration because the Ram memory was running at a lower speed (236.5 instead of 240) and, what?s more, I was using a divider (DDR333 instead of 1:1 ratio or DDR400). So, after getting my system stable trough Prime95 blend test and SuperPi 16M, and what I call the SWAT4 test, (enough for testing stability issues) I decided to test its performance against the results I obtained with my older config. Results impressed me, they were better than I expected: 6974/6897 Mb/s.

Hope to post later on more results in order to offer you a detailed performance comparison but I cannot right now, gotta study hard! If you want me to run any software for testing, please tell me its name and I?ll try to post my results obtained with that program so that you can compare them to yours!

Using the DDR 333 divider has no negative impact in performance at all on these platforms! I would recommend those who are running their rigs at 2.4 Ghz 1:1 ratio to try the DDR333 divider and post here their results. I am convinced that most of you should manage to get 2.6 Ghz stable! Give it a try men!

Experiences: At first (time ago) I started to run my Winnie at 2.4 Ghz 1:1 ratio (240x10) with 1.425v because I thought that voltage increase would be necessary and my Ram memory at 240 Mhz 2-3-3-7 1T since Memtest86 v3.2 reported no errors after several Passes. The interesting fact is the system appeared to be stable but Prime95 reported errors and SuperPi 4M,8M,16M,32M reported errors too. At first I did not pay much attention to these errors but I did when I bought the SWAT4 videogame; After playing this game for about 15-20 mins, it suddenly threw me to Windows everytime, no exception! I wondered why several times, I reinstalled it and the same happened, I got another copy of the game and the same story, so I decided that had to be an overclocking problem! After research, I discovered the following: at 240 Mhz my ram memory could not run stable on the ASUS with 2-3-3-7 1T timings (it seems the A8N SLI Dlx does not like ?2? timings) so I lowered the timings to 2.5-3-3-7 1T and?it ran stable on the ASUS. Then I continued experiencing some issues when testing?I remembered that my Winnie, when I first got it, could run at 2.4 Ghz with the standard voltage of 1.4v but I did never test that so I lowered the Vcore to 1.4v and?.The system ran for the first time truly stable trough Prime95, SuperPi and SWAT4, at least!!

Now, I am able to run my memory at 2-3-3-7 timings at 236.5 Mhz with no issues. Also I have been forced to rise the Vcore to 1.450v as I am running my Winnie at 2.6 Ghz, If I low the voltage the system does not run rock-solid. So for 2.4 Ghz, 1.4v and for 2.6 Ghz, 1.450v.
Note that in Sisoft Sandra 2005 in the ?CPU & BIOS Information? module > ?Min/Max Core Voltage?, it reports Min:1.400v, Max:1.450v. This may be interesting since it reported the same when I was running my winnie at 1.400v!! The question is, Is Sisoft Sandra able to detect the maximum Cpu voltage allowed by each CPU??
I would like you to try this and post here your experiences! It could be helpful in order to know the exact voltage each Cpu allows!

Best wishes,
MADMAX23
 

Bar81

Banned
Mar 25, 2004
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Instead of creating PR ratings in your titles maybe you should just put what speed you got it to.
 

Rike

Platinum Member
Oct 14, 2004
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I might have missed it, but which BIOS version are you using?

Also, how long are you Prime95 stable? Do you shut down Prime95 before you get errors? Personally, I don't consider an OC stable unless I can get 24 hours from the Prime95 blend test with no errors.
 

Rike

Platinum Member
Oct 14, 2004
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Run Prime95 for 24 hours and post back. Then you'll be considered stable by most people around here.
 

GuitarDaddy

Lifer
Nov 9, 2004
11,465
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12hrs is plenty, if it makes it 12hrs it will make 24hrs 99.5% of the time.

Your settings are identical to the way I ran my 3200+ on the A8N-SLI, the only difference is my ram timings where 2-3-2-7 instead of 2-3-3-7 which gave me a bit closer to 7000 in sandra memory bandwidth, you might give this a try. I have since upgraded to the SD 3700+ and am running 2.8ghz:)
 

Rike

Platinum Member
Oct 14, 2004
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Don't get me wrong, 12 hours is good. 24 hours is more stable. My OC (see sig) is 24 hours stable, but it consistently fails between 26 and 27 hours. Thus my OC is not totally stable. However, my system never runs at full load for that long unless I'm checking an OC attempt, so I'm willing to trade some speed for some very minor instability.

If your willing to have some instability, you can OC higher. You just have know that your system may crash or give you inaccurate data at some point.
 

MADMAX23

Senior member
Apr 22, 2005
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I will try to lower my timings and see what happens Guitardaddy!
If I have time (I am studying for my Law exams) I will leave my Pc 24 Hours or more running Prime95 blend test,ok?
I will post then my results. Be happy!
Also if you want me to run any other benchmarking software, please let me know!
 

MADMAX23

Senior member
Apr 22, 2005
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Thanks to Rike and The Pentium Guy!
My Rig is going trough the 10th hour of Prime95 blend test (again) with no errors/warnings by now.
Should I post this topic in the Cpu/Processors and overclocking section of the Forum? I think here,in mobos, is not being very helpful, is it?
We'll be in contact
 

MADMAX23

Senior member
Apr 22, 2005
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HI, What's up!
11 hours and a half and still no errors or warnings. Chipset fan is a pain in the ass, what a noise! Will replace it in 2 weeks time or so with a Zalman passive heatsink, probably, the ZM-NB47J.
 

Rike

Platinum Member
Oct 14, 2004
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Originally posted by: MADMAX23
HI, What's up!
11 hours and a half and still no errors or warnings. Chipset fan is a pain in the ass, what a noise! Will replace it in 2 weeks time or so with a Zalman passive heatsink, probably, the ZM-NB47J.

I use that Zalman on my board and I'm very happy with it. My case has good air flow, so I don't worry about that it's passive. I'm always looking for easy ways to get rid of noise and putting that heatsink on this mobo is pretty simple.

oh, and woohoo for no errors yet. ;)
 

MADMAX23

Senior member
Apr 22, 2005
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Hi!
It's me again! 19 HOURS and no errors/warnings yet!! This is getting exciting!
I promised more results for comparison, here they are:

These are the benchmark results (Prime95) I got yesterday evening before runing Prime95 blend test:

PRIME95 BENCHMARK RESULTS:
Prime95 version 23.8, RdtscTiming=1

Best time for 384K FFT length: 16.800 ms.
Best time for 448K FFT length: 20.079 ms.
Best time for 512K FFT length: 22.336 ms.
Best time for 640K FFT length: 28.298 ms.
Best time for 768K FFT length: 34.386 ms.
Best time for 896K FFT length: 41.360 ms.
Best time for 1024K FFT length: 46.559 ms.
Best time for 1280K FFT length: 61.969 ms.
Best time for 1536K FFT length: 74.267 ms.
Best time for 1792K FFT length: 89.987 ms.
Best time for 2048K FFT length: 101.321 ms.

These results were achieved with my current config!

SISOFTWARE SANDRA 2005 SR1 LITE

CPU Arithmetic Benchmark:
Dhrystone ALU : 12016 MIPS
Whetstone FPU/SSE2: 4104/5312 MFLOPS

CPU Multimedia Benchmark:
Integer x4 aEMMX/aSSE : 24781 it/s
Integer x8 ISSE2 : 19411 it/s
Floating Point x4 ISSE2 : 26654 it/s
Folating Point x4 aSSE : 26437 it/s
 

MADMAX23

Senior member
Apr 22, 2005
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Yes, You are right, I know, I mean that it would be its equivalent. Also note that the only processor running at 2.6 Ghz is the FX55 (Results obtained are closer to the ones obtained by the FX55 but I prefer to consider it a 4100+ because it has not 1Mb L2 cache.
Yeah, 21 hours right now and no errors/warnings yet...will it pass the 24 hours test? I hope so.
 

MADMAX23

Senior member
Apr 22, 2005
527
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Hiya guys!!
It's a pleasure to announce you my current Rig made it, yes, It passed successfully the 24 hour Prime95 blend test without errors/warnings, in fact, It ran 25 hours and 16 mins!!

Idle CPU temp: 29ºc
Load CPU temp (Max): 40ºc

I have tried to lower my Ram memory timings after the test, Guitardaddy, to 2-3-2-7 but Memtest86 3.2 reported errors so I'll stay with 2-3-3-7. It has proved to run very stable. Sure that could be solved by increasing the Ram voltage a lil bit but don't feel safe doing that.I use the stock voltage for my Ram: 2.75v

Hope to hear from all of you soon!


 

MADMAX23

Senior member
Apr 22, 2005
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SUPERPI RESULTS:

+ 000h 00m 01s [ 64K]
+ 000h 00m 02s [ 128K]
+ 000h 00m 06s [ 256K]
+ 000h 00m 14s [ 512K]
+ 000h 00m 33s [ 1M]
+ 000h 01m 16s [ 2M]
+ 000h 02m 50s [ 4M]
+ 000h 06m 04s [ 8M]
+ 000h 13m 38s [ 16M]
+ 000h 31m 23s. [ 32M]
 

Rike

Platinum Member
Oct 14, 2004
2,614
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Congrats! :thumbsup: Nice job. :)

It makes me want to try to squeeze a few for Mhz out of my machine. :evil: Can silicon bleed?
 

MADMAX23

Senior member
Apr 22, 2005
527
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Thanks, I am very happy with the performance boost I am going trough. Upgrading from 2.4 Ghz to 2.6 Ghz has a great impact in overall system performance, above all, on applications demanding fast calculations such as DVD encoding, Ac3 encoding (Dolby Digital) ,dts encoding (Digital Theatre System), Divx encoding and so on many other common applications such as Photoshop CS.
I encourage you to squeeezzze a few more Mhz out of your machine, it's worth the try!
I tested yesterday Bios 1004, to see if it was good for overclocking and it sucked, for my mobo didn`t work properly ,or, at least, not like Bios 1006.
Which Bios were you using Guitardaddy? Bios 1003?
Good Luck Rike with your overclocking!
 

MADMAX23

Senior member
Apr 22, 2005
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Rike, What did you mean when you asked me "Can silicon bleed"?
I don't understand, please explain..
Bye
 

Rike

Platinum Member
Oct 14, 2004
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I was just being sarcastic :D

I've pushed and tested by system at least as hard as you have, and given the parts I have, I think it would be difficult to get more out of it. That doesn't mean I won't try.:) I might have to squeeze my system so hard it would "bleed."