Fatbody 1200+ CL4-2-2? Impossible?

I don't think so :D

Celly 420 (rox :D )
P5K
2x512MB Corsair 5400UL, my best sticks
Antec 550W TruePower

vdimm 2.7-2.95v
vmch 1.63v

http://img509.imageshack.us/img509/4227/570fbto1.png
2.7v 5:8

http://img516.imageshack.us/img516/6340/575fbcm1.png
2.95v 1:2

http://img341.imageshack.us/img341/6999/35582802bq9.jpg
alpha timings + cpu + mem

http://img179.imageshack.us/img179/7279/69961987mr7.jpg
2.7v

http://valid.x86-secret.com/show_oc.php?id=253179
CL4-2-2 dual channel

1:2 really sux in P5K for me. 5:8 is much better for ram clocking, but fsb wall @380MHz is barrier for memory. At this moment I havent got better cpu (waiting for peryn) to check what really this ram can show :D . I will try put evap on cpu in next few weeks and try one more time :up:

regards

Amazing.

impossible is nothing :shocked:
This is truly amazing. Congrats on the excellent result.

WOW thats amazing result with FatBody Chipset....can you try with 4-3-2-1 or 4-2-2-4 Please........!!!

Can you do this booting from BIOS?

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Originally Posted by Gautam

Can you do this booting from BIOS?

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In p5k I can set only 4-3-3, no "2" options.

Little test:

http://img172.imageshack.us/img172/9756/433ee4.png

http://img300.imageshack.us/img300/153/423ce0.png

http://img172.imageshack.us/img172/8431/422uv5.png

Interesting

considering that no DDR2 has ever come close to this, without it being a fluke or fake, I am not too inclined to think this is real. probably just bugged or something.

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Originally Posted by Kunaak

considering that no DDR2 has ever come close to this, without it being a fluke or fake, I am not too inclined to think this is real. probably just bugged or something.

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Have you got some ideas, how check it? I dont know how other mobos will work (or don't work) with that "strage" setting.

In worst option is still 4-3-2/4-3-3 1200mhz+ for fatties.

I see no significant difference between tRCD 3 and tRCD 2. RAS to CAS Write delay is possible to set in Memset. I don't believe tRCD is, and I don't believe tRCD 2 is possible on P35.

4-3-3 1200MHz on fatties though is indeed excellent. I suspect we'd be seeing more of that if more people were using them on P35.

from 26.922s to 26.750s is a pretty decent boost though..

I should have made myself more clear; RAS to CAS Write Delay indeed works and many of us use it to shave down 32M and 1M times to an extent. Note that the jump from .907 to .750 doesn't come from tRCD being reduced; rather from tRP and/or RAS to CAS Write Delay being reduced.

It's got my interest piqued though, wish I still had some fatbodies around now. :p:

Handpicked fatties on P35 with 2.95Vdimm. I don't see any fake there, pretty nice results.

I think the results are great. I also never saw a CL4-2-2-x fatboy before, but the 1M results are interesting. The vddr should be realistic for 4-2-2.

But anyway, I try everything from the BIOS and not with memset to be SURE nothing is faked or virtually setted.

CL3 or 2, both are really amazing results for the fatboy.

Can I ask where and when you got the sticks? And also what model they are?

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Originally Posted by Gautam

It's got my interest piqued though, wish I still had some fatbodies around now. :p:

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Some of us still have sticks that some of you guys got rid of. :D

Maybe just like BH-5 and S939, fatbodies will have a second, more productive life with the P35.

Wow makes me want to try out my old fatbodys :D

I forget, but were there fatbodies that didnt like voltage much as well? Since the stuff i have starts erroring if i put ~2.4 volts through them (with good cooling)

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Originally Posted by EniGmA1987

Can I ask where and when you got the sticks? And also what model they are?

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Corsair 5400UL v1.3/1.5. I've got few sticks and selected the best pair couple months ago, but I'm running with 975x chipset, so memory was limited. With P5W64 and 2.69v:

http://img243.imageshack.us/img243/6...i32m560vz4.png


My 8000UL v1.1 and other 5400UL v1.2/v1.5 are clocking much lower.

For sure my score isn't any fake or something. Maybe some bug, but I can't check it in 100% and confirm.

For anyone interested, one of the members has a set of these same modules for sale in the Classifieds.

Pretty good price, too.

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Originally Posted by EniGmA1987

Can I ask where and when you got the sticks? And also what model they are?

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Originally Posted by Reefa_Madness

For anyone interested, one of the members has a set of these same modules for sale in the Classifieds.

Pretty good price, too.

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If somebody is interested, I can sell my sticks:up:

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For anyone interested, one of the members has a set of these same modules for sale in the Classifieds.

Pretty good price, too.

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After seeing this thread I put them on hold. I need to vmod my p5K and hope to test them tonight. :up:

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Originally Posted by harleybro

After seeing this thread I put them on hold. I need to vmod my p5K and hope to test them tonight. :up:

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Cant say that I blame you. :)

Lollll Well played Ma Sell ;)
Comparison 600Mhz 4-2-2 vs 600MHz 4-4-4 ?

600 is not benchable ;)

MaSell I must say this is very interesting and so is testing so far. I have seen the 4,2,2,x also and I haven't vmodded so I am maxed at 2.55 bios. So far they did 568 4,3,3,x with ease at performance level 4! I also tried cas 3 and 1T which was no problem at 420 performance level 3. I am glad noone scooped them up when I tried to sell them for 55 :D . I will post some reults here for you after vmodding the mobo. ;)

And Corsair will be confused at sudden sales of older ram monday:rofl: :rofl:

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And Corsair will be confused at sudden sales of older ram monday

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Only thing is that Corsair, nor anyone else for that matter, has any of this stuff left in inventory.

Fatbody chips have long been EOL. :)

V1.5 Corsair 5400UL's

All combinations of 2 for RAS to CAS Read delay and trp yielded no additional benefits. 2-3, 3-2, 2-2.

2.75v
http://i63.photobucket.com/albums/h1...ybro/16238.jpg

http://i63.photobucket.com/albums/h1...ybro/16312.jpg

harleybro,

Did you notice this part of MaSell's opening post....

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1:2 really sux in P5K for me. 5:8 is much better for ram clocking

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From the screenies, it appears that your were using 1:2 as well. Did you try any other dividers?

Lastly, how do those clocks compare to prior overclocking results on different chipsets?

I was just trying quickly to see if there was a differance in setting 2-2. I am actually working on 32m. Honestly this is the first time I dug them out since I used them on P5WD2. I have been running my cellshocks since I got them and they seem to like tighter subtimings all the way around. I will be trying some 32m to see what these do.

My RAM runs very slowly on P965 DS3 rev 1, but was able to run 4-2-2-2 @ 900 MHz (450 fsb) with A-data 8500. Noticed superpi 1M times came down very slightly, but these timings were very unstable and setting RAS-cAS write 3 cycles caused a lock up or reboot. I agree, the other timings aren't settable (P965) and have no effect on performance.

Ok tras does not like anything below 10 at these speeds. Trfc may go as low as 26 but anything less then 25 locks them up. Write to precharge doesn't like below 10. After playing around for 2 hours here's a 32m. The time is horrible only thing does was run in service mode and high priority with core affinity set to better one. This took 2.78v. Setting to 2.8 seemed to lock it up fast:

http://i63.photobucket.com/albums/h1...eybro/1438.jpg

Further testing to compare my cellshocks since I know sub timings run alot tighter. Same OS and same settings affinity in diagnostic mode with priority set to high.

This is at 2.45v:
http://i63.photobucket.com/albums/h1...eybro/1423.jpg

Now a comparison of timings. The UL's on the left and the cellshocks on the right. Areas circled in green shows where the UL's shine. Areas in red any time I tried tighter on the UL's the system would lock before even starting 32m.

http://i63.photobucket.com/albums/h1...ro/compare.jpg

Just bought those 5400UL v1.5 from my overseas buddy Jay, will try them on eVGA 680i LT SLI @ full SLI to see if i can manage to sqeeze a few MHz more on nF680i platform.

Dying of anticipation here! :up:

I had some OCZ 4200 EB fatbodies that would do 3-2-2 @ 920MHz with only 2.1v, although they could not reach that high of MHz, if I remember correctly. My current Crucial 10th Anny's can do 4-4-4 @ 1066MHz with the same 2.1v.

I had no luck changing the CAS latencies on my P5B using MemSet. I could set the CAS to 3, 4, 5, and although the setting would show up on cpu-Z and other programs, the actual CAS latency did not change. SuperPi times were the same no matter what the MemSet CAS setting was set to.

I testet my 8000ul rev1.1 4.3.3.9 @ 2.6V
http://peecee.dk/uploads/012008/4.3.3.9_@580_2.6v.JPG

It's too bad that this thread died.....anyone try Fatbody's on a P45 board? :D

Im getting my P5Q Delux tomorrow, i will test soon
I have 7 sets of 5400ul and 8000ul they all do 550-600 singel channel 4.3.2.8 with 2.6V on my commando
Here is a screen of one pair of 8000ul dual with 2.8v
http://peecee.dk/uploads/062008/Billede17.jpg

Omg guys! Give us EVEREST RESULTS with your SUPER MEGA TIMINGS... i`m tired to see your boring screenshots.

nice! congrats masell :toast:
even if its "only" 4-3-3 its nice for fatbodies :D
whats the max dual 32m stable?

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Originally Posted by WaterFlex

Omg guys! Give us EVEREST RESULTS with your SUPER MEGA TIMINGS... i`m tired to see your boring screenshots.

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Everest memorybench 4.3.2.9 with 2.6V.
http://peecee.dk/uploads/062008/Billede18.jpg

Holy crap:clap: :toast2:

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Originally Posted by MACMAC

It's too bad that this thread died.....anyone try Fatbody's on a P45 board? :D

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I'm glad to see that your interest in fatbodys hasn't waned with the passing of time...neither has mine. :D

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Originally Posted by Reefa_Madness

I'm glad to see that your interest in fatbodys hasn't waned with the passing of time...neither has mine. :D

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Well I still have like 8GB of the stuff, so yeah :D

lol, 8gb! :D
i didnt see harleybros post before, so it seems fatbodies actually cant run as tight subtimings as the d9gmh/gkx chips?
interesting... i wouldnt have expected that...

Quote:

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Originally Posted by MACMAC

It's too bad that this thread died.....anyone try Fatbody's on a P45 board? :D

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It seems that Asus P5Q Delux, is not that happy with fatboy as my Commando.
All though running 4.3.3.9 on my best singel kit Corsair 5400ul it could not get up to the 600 like on the Commando (4.3.2.8) 2.6v, only 585 :-(
We are talking spi 1m stabel

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Originally Posted by Nanok

It seems that Asus P5Q Delux, is not that happy with fatboy as my Commando.
All though running 4.3.3.9 on my best singel kit Corsair 5400ul it could not get up to the 600 like on the Commando (4.3.2.8) 2.6v, only 585 :-(
We are talking spi 1m stabel

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BTW, I thought timings lower than 3 were impossible on P35? I know 955x and 975x could do it, but the newer chipsets had problems with it. I don't know about X38/48 though.

Guys this thread made me check what old ram I had.I looked around and found some corair cm2x512-6400c4,I have no idea what chips these are and never thought they were decent chips.I am running now on my p35(p5k deluxe)2.3volts bios 470fsb 1:1 ram at 44415.I just started messing with these and heres my results so far.I also have no idea if these are the fatboys or not.

OMFG thats great, amazing, WOW.

IM up to 490 1:1 ratio 4449 :) already broke 10k in everest,now going for a 12 second pi

My best soo far with P45 and Corsair 8000ul D9DQW
http://peecee.dk/uploads/072008/Billede1.jpg