Got a S64 2500+ 256kb cache last few days and finally had the time to assemble and test it.

Test BED:

Abit NF8 (stock) Flashed to BIOS 17
Sempron64 2500+ 256kb (default 1400mhz)
512mb KVR DT D43
Cheaplak GF2MX 200
Good Ole' Vtech 350w


Voltage @ Bios = 1.5v (It doesn't allow undervolting)

Currently letting it prime @ 2000mhz overnite, more results wil be up in a fewdays time.

Initial findings:

1. a 600mhz overclock from default it's definitely a good sign.
2. Probably, the NF8 isn't a proper board for pushing to the highest HTT.
Currently, from what i've read, highest is 320 HTT.
3. another 1700+/1800+ DLT3C craze?
4. AFAIK, there are no databases for s64 2500+ OC result, so probably a
reference result here will be a good start. (Period)
There are results of s64 2800+ , doing around 2.5-2.6ghz. Probably this lower sibling will be able to hit as high as tat, provided if the mobo does high HTT.
5. IMO, should the CPU scales higher, the MOBO will be the limiting factor here and the DFI would be the best choice in exploiting the fullest of this cpu.
6. For those NF8 users with Enermax 431w, do take note, the combo isn't compatible. I can't get the Enermax to boot the NF8

This post has been edited by kucingfight: Sep 18 2005, 01:46 PM


Attached thumbnail(s)

-Reserved-

-Reserved-

dude... what's your 2500+ stepping?

anyway... let's make a sempron K8 database

http://forum.lowyat.net/index.php?showtopi...dpost&p=3437739

soulfly, apparently we already have database for sempron. it's just that nobody notice it.

soulfly, i didn't jot down the codes as i was too excited assembling the sys.

Anyways it's primestable @ 2000mhz @1.42v. Haven try it further.

Btw, any S64 OC results to be shared here?

Nice OC!
2500+ is 1.4GHz and having 7x multi?

My current HTT on NF8 is 331 with divider. Should be no prob hitting 350++ easily . All is the ram limiting me.

Here my 2800+ sempron64bit with NF8 too.



This post has been edited by Cyclone87: Aug 28 2005, 01:25 AM

Nice HTT speeds u hav there Cyclone. Btw which bios isit? Prime stable? currently my max stable Prime95 is 308. Man maybe i should juz ramp it higher

wow...s64 can beat my old A64 already...nice scores there...

but why issit faster?? other than the 0.09m architecture, the cache is also smaller...i just dun understand...if results are this good, i'm considering switching to S64....

i saw robyncom there got a sempron 2800+ 256k cache and a sempron 300+ 128k cache

which 1 should i go for?? and are those E6 steppings?
mind telling me your stepping guys?

This post has been edited by sidewinderz: Aug 28 2005, 08:30 AM

HERE, they able do 350HTT , but vcore...
Using DFI NF4-4X mobo.



(SDA2500AI03BX LBBWE 0529EPCW Q382909G53101)
(SDA2500AI03BX LBBWE 0528BPBW Z727669G51962)

they said this two stepping can easily hit 300HTT.

I do a quick try this morning and without 1.55v i cant hit anything above 345HTT.

Stable at this . Slightly Overvol.



kucingfight, i realise something bout NF8. Even i using Icute 450watt , it give me same rail like actec 400watt. After few reading at MBM5, my +12volt constant at 12.10 and so do my +5v at 5.1v. Btw is ur mobo temp reading when priming can go up 115.5c? Den i restart straight to bios and it only 45c.

This post has been edited by Cyclone87: Aug 28 2005, 11:44 AM

using asus k8n

latest result from mine

i found out that setting the ram clock of DDR400 to DDR333 in bios doesnt affect anything since im overclocking everything..

using sempron 256 k 2800+ 64 which is 1600 MHZ stock which memory running at 201MHZ/8

Memory running at CL 2.5 3/3/6/11/16

DDR running at 400 which is 201MHZ which is same with the above 201/8
HT set to 4 which is 4*200 =800 Bus



running 270 FSB * 8 = OC tuill 2160 MHZ

Memory running 216 MHZ/10

memory running at CL 2.0 3/3/5/10/16

set bios DDR runnng at 333 but....
HT set to 3 which run at this 216MHZ*3=810 Bus

overall 35 % increase from 1600 mhz to 2160 MHZ.

this is the best i get so far

never touch the Vcore and Vdimm..i leave it to auto or default.

memory speed i also set to auto.

@ Cyclone, MOBO temp? I'm using Abit's EQ, on max load 305x7 , cpu is 47 and sys is 41C.

I can only get mine to prime max stable at 305HTT. Think the board is limiting. Tried many combos of volts adjustments.

My mobo sys temp= cpu temp, n cpu temp stuck at 115. >_< btw i already stop playing with HTT. Cant get throught 345 for me. It the mobo limiting me.

345MHz is really impressive.... Most NF8 mobo reviewers only hit ~310MHz.
BTW, what's your CPU steppings?

My 2800+ stepping 0328UPMW

i believe they only running the HT X 2..not X3 or X4

they only getting 350.4*2 =700.8..i think it's impossible to get X3 HT which is 1051.2 bus.

AMD sempron running 800 Bus...

and they already set higher voltage

right now im still thinking how can i OC till 2400 MHZ running HT X2 only which will run at 600 Bus.

300Mhz X 8 =2400 Mhz

I cant boot with HT x2. Need to set to x3 only can boot.

Cyclone,

I only set my LDT to auto for a 300MHz HTT, but on some mobo, 3x LDT may be required.

BTW... I believe your stepping should be 0528UPMW... not 0328UPMW

2003 they dun have palermo yet

Oops..typo...

cyclone87, u use icute450 twin fan to OC? will it stable?

means u r running over 900 bus at HT X3?
possible ar?

It kinda weird. That icute psu give me very good rail on NF8 even at high voltage n mhz. The +12 never go above 12.10 and never below 11.98. Same goes to +3.3v and +5v. Even some purepower oso cant be that good. I gonna stay with icute for this mobo.

From DFI Street Forum.

very very true indeed. what most important is the clockspeed, because the FSB is running at full clockspeed

this case same as me ... last time i also using cipak psu... n their +12 also stayed at 12.10+- .... all other rails are darn stable high voltage as well... but i'm quite scare those psu will blown anytime.... so i ended up buying a enlight 420w which is low rails low +12 everything low... so it's ur choice

Gonna rest after this. Tired priming and test stability.

I still on stock heatsink +DeltaFF 92mm and so gonna stop around 340HTT until i get a better 1 .
My icute giving me good rail on this mobo. But on other mobo, it only 11.5v for +12v.

This post has been edited by Cyclone87: Aug 29 2005, 04:39 PM

wah wah... so easily can do 2.7ghz!

palermo rocks!

congrats dude..
even my a64 winnie cant do that

this palermo E6 is the lil bro of venice

wonder where i can get the E6 revision...robyncom selling?

look for any sempron 64 ... it should be the E6 stepping

non64 sempron should be either D0, E0 or E3

off topic & noob question...this nf8 mobo does not do dc right?...

all socket 754 dont if im not mistaken

u make me wanna keep my icute

btw there is nf8 n nf8-v, nf8v seems cheaper n support raid, will it hv a big difference in OC?

my epox 8rda+ kong edi, if cant repair hv to switch to s64 to suit my budget n OC needs

btw izzit s64 3000+ & above got cool n quiet tech oni?

This post has been edited by wtm0325: Aug 30 2005, 03:31 AM

yes

CNQ...not for overclockers

exactly

s-754 = single channel
s-939 = dual channel

Kinda down with my mobo. It limit at HTT 345 FSB. I gonna let this 2800+ and grab at 3100+ with 9x multiplier. Hope can hit lot higher . Will update soon.

xbitlabs stated that this 3100+ does not support AMD64 technology...betul ke?...

if it's a Sempron64 ... it sure does support AMD64 technology, regardless any speed it's rated at....

the xbitlabs that you read must've been covering the 32-bit version

This post has been edited by soulfly: Aug 30 2005, 11:04 PM

AMD Sempron 3100+ E3 (s754) does not support 64bit .

BA = D0, E0
BO = E3
BX = E6

so the E6 stepping must be support the AMD64 technology right...

If im not mistaken only Palermo E6 BX stepping support X86-64bit .

correct me if im wrong .

btw when will s939 sempron come out? will it better than s754 a lot?

sempron 939?
939 mobo expensive....

faster if it support dual ddr
or ddr 2

If sempron clock around 2.5ghz, would it overtake a S939 A64 3200+ which is operate at 2.0ghz i guess?

exactly

not so soon.... but currently there are s939 sempron, but only to catter OEM pc market only

yup... and a few 3GHz P4s also

Even p4 3.8ghz also stand no chance to againt 2.65ghz sempron.

i think it's about amd64 3600+ oni, using amd universal tools to calculate...

sempron is 10-15% slower than amd64

This post has been edited by wtm0325: Aug 31 2005, 04:33 PM

A note here, Even the overclocked s64 in theory is able to beat a p4 3.8ghz at certain benchies, imo, the p4 with its HT will still whack the s64 good enough. Being a user from p.4 3.8ghz to s64, i can feel the 'lagginess' especially multi tasking in the s64. anyways, nothing to complain though,bang for the buck, s64 wins hands down

hmm...
bought a copy of Sempron 2800+
results will b posted tomorrow...

in multitasking, P4 is the king... no doubt about that, even P4 had a big advantage in multitasking over Athlon64

want to ask kucingfight n cyclone, u both set ht transport volt n ram ref to max?

i encounter a problem, when running 265fsb with 166mhz ratio, i found my agp change to 99 even though i set it to 66, any setting i missed?

btw the ldt should set to 8 bit or auto? pls help, i cant OC my rig stable now, eventhough i get 0528upmw, i doubt mine is bad chip

might be faulty bios....try flashing to the latest version....for my mainboard, the 1.8 version giving me serious headache...lets hope i can still run sempron with my older bios...

Flash the latest bios of 17. My ht transport volt is default , same goes to my nf3 chipset voltage. LDT i leave to auto. Only my ram and ram ref set to auto. Btw my agp clock i set to 67 . I dont trust 66. Btw with default bios i hit 340HTT easily , juz i flash to latest bios to detect my chip. If not it name it as unknown cpu.

for above 300mhz htt set...

LDT bus : Auto
LDT multiplier : x3 (on some nF3 mobo just set Auto)
AGP : 66mhz (67mhz for extra stability in gaming)

try play with different chipset voltage combination

lastest news, i did this before i read u all reply...

i set ram, ram ref, chip n ht volt to max, n i already flash to the latest bios when i first start play with it

at ram divider 100mhz, i able to hit 331ht (below ht 1k), it's only benchable but but not prime stable...

at 133 divider, max ht only 295, no matter how hard to push or play with multiplier, it'll nvr over 298...

at 166 divider, max ht is the same 295ht, n cant push to higher oso

i nvr adjust vcore as i think more on mobo fault, the proc seems fine running very well, still nvr over 40 so far...

guys lets say 2650 @ 166mhz vs 2360 @ 230++ mhz, which 1 will be faster?

i'll try cyclone way to oc it again, btw cyclone ur htt multiplier is 3? n how to adjust ram ref volt? dun understand wat it means...

My HTT is 3x
Vdimm is 2.8v
Ram ref is 1.33v
HTT and nforce3 Voltage default

After exceeding 250HTT, u will need 3x HTT. If 2650 @ 166mhz vs 2360 @ 230++ mhz, the 2360 win for sure . U cant let ur ram bottleneck ur proc speed. I can go till 345HTT stable but my ram running at divider 2:1 . It slower den 331HTT which giv me 2.65ghz with 217fsb on ram.

Hey guys, I'm not fimiliar with S754 and I am building a Semprom64 for my little sister. I would like a mobo with build in VGA and sound because she is just 6 yrs old and will be using for some educational softwares. Any idea which mobo is good? Thanks.

the only chip i see is ATI® Radeon XPRESS 200

other, not so familiar.

heard that nVidia will release a integrated VGA chipset soon.

There is an msi mobo intergrated sis chrome GPU also. And it only rm200. I forget the name..

http://www.tul.com.tw/global/productlist.a...t2=148&cat3=338

robyncom sell it for RM370.00...

For RM370, I think it's better to get Abit NF8 for some ~RM300, use the rest to buy a 2nd hand vga card. (GF4MX maybe?)

ha yup agree with it, maybe can buy a cheaper nf3 mobo if no OC n buy a gc, i'm sure ur sis wan to play games much

cyclone, i'm now only able to do at 2340 (292httx8) @ ram 234mhz stable from cpuz, but when i run memtest it showed 242mhz in stead of 234mhz?

i cant go higher as i think my d43 max out at 242mhz 3-4-4-10 @ 2.8v at memtest, i'm using 166 divider, i tried run 133 divider but also the max htt will be 295htt dunno y, then better swith to 166 divider

cyclone, i found my system restart slower after OC, when restart hv to wait for a while, if shut down n turn on no pro, did u face the same thing? now my volt is like urs, only vdimm n vdimm ref is adjusted to max...

i now enable system bios cacheable, i heard it'll lead to system unstable but faster, how should i test it? use memtest or cpu test?

MSI K8MM-V is just nice.... I'm using it on my 2nd rig/sis' rig. I bought it for RM230 last time.

i do find restart problem where it detact the IDE devices, weird.
Using Asrock 1689, well, i think it can be stable at HTT270 but i am running HTT250 with RAM speed at DDR400

weird problem, since this board don't have AGP and PCI locked, when running on HTT270 i can see some aritifact, lolz, usually didn't, unsure it is nVidia 78.01 or not

mitodna

hey...tested my Sempron 2800+
now stable at 287x8.0
the bios update for my mobo sux la...now still using older bios..
dumb msi

wah then ur agp/pci is how many mhz now?

yalor, even nf8 also when restart it my liteon combo always running for bout 10-20s before start, is the lock cant be trusted?

i don't know what is the MHz now, lolz, how to check? i can't find some nifty tools, the only tools, well, really i don't know, PC Wizards, also can not, need Sandra kah?

hey, mine optical drive, which is a DVD writer also running about 5 seconds, lolz

mitodna

it is very easy to use WinFlash in MSI mobo wor

mitodna

wah wah ..latest news..

i think im lucky ..i dont know what is my revision model

but mine is E6 sempron 64 2800+

update my bios asus K8n 1008...

i dont OC..but jz wanna try out

295 Mhz X 8 = 2360 Mhz 2.36 gig from 1.6 gig = 760 mhz increase = 47.5 % increase after o/c

HT set to 3,using ddr 333 set from ddr 300....
so memory instead of 200 mhz..running at 295 Mhz...

Ht X 3 = 295* 3 =885 instead of stock 800 mhz bus..

running stable....

Vdimm stock.....Vcore also stock....AGP clock also stock..all running stock


i did set to 300 getting 2.4 gig from 1.6 gig....can boot.....windows got registry error.....so i set till 295 never bother 296 till 299...

can see windows performance increase very dramatically...

yahoo

hopefully asus come up with new bios which i can set my vcore,and v dimm manually.....and the fsb i can set till 350.....

kekekeke

download the new bios manually and use the dos utility to flash
works fine with me

Malaysian, Asus K8N is using what chipset?

This post has been edited by soulfly: Sep 4 2005, 03:28 PM

Oh ya...i forget something. I see u guys hardly break 300HTT mayb becoz of the pci/agp lock thingy. Some mobo came with Pci lock, but SATA Pci clock wasnt lock. If so u will end up sumwhere below 270HTT.

My S64 was running under no CDrom and floopy on board. My OS is in my HDD, and i juz install the driver when i plug on my S64. Btw for me, with 2800+ ,my HTT is max at 345 and HTT Ratio is 3 which make it 1035mhz. If i running on a 2500+ sempron with 7x multiplier i can hit around 390-400 HTT with ratio 2x but vcore around 1.7v. I gonna go shop for 3100+ few more days.

nforce 3

only nforce 3 is powerful enuff to OC

kt800 not good

how u set vcore?in the bios can set ar?

mine asus cannot set ler

I hit 339HTT without vcore adjustment. Higher den dat i need to up abit . I will try up my HTT voltage n nf3 voltage to max n c how high i can go.

i think my cpu same as urs....

my mobo limit me

fsb till 300 only...

ur abit mobo fsb max at?

wei i want to ask u something

ur fsb:dram is

1:1?

how come mine

is cpu/10?

you see right...my asus mobo max fsb 300 only

so i juzt set the HT from 4 to 3...set the ddr ram from 400 to 333 then the timing all auto.....

then i manually set the fsb to 295...

then i got 2.36 gig

is there other way?
r u using good ram?

mine is geil with blue sink

Abit NF8 max at 450 HTT which is high enuff .

My fsb:dram is 3:2 for 332HTT. Above that my ram pulling me off. Need 2:1 divider. I m using crucial ram. Not ballastix.

btw wat is ur stepping? I tried both 0528UPMW and 0528CPCW. And CPCW is the 1 giving me 2.7ghz at 1.45vcore which is default for NF8.

i dunno wor...i throw my box liao
how to check

urs running 3:2

how come mine running cpu/10?

same?

what is the difference?

The stepping is on the proc itself.

hmm..the problem is that i cant set the timings to 2T..if i can set that, i'll jump right into it...

mine is SDA2800AI03BX

LBBWE 0528BPCW Z727689 651070

it's 0528BPCW stepping wor....

0528 betterh than 0527...sigh..regetted getting 0527

my stepping is same as above...expect the speed is 2800+ not 2500+

does it means i can do 350 *8 with vcore 1.7V getting 2.8 gig from 1.6 gig?

lolz...i dun think so la..cause processor OC capability varies between processors..even processors with the same stepping might not haf equal performance...

my processor max out at 292x8.0

but if i go 289x8.0, i gotta use 133 devider

yup, even with same stepping doent mean they are equal. Btw urs is BPCW and that 2500 is BPBW. The 3rd alphabert is the grade of the material they use. Grade A is the best folo up by B and C. M is a mixture . Any another alphabert other this , juz ignore it.

har..mine is C version ar..then low grade wan lor..hope i got A grade



mine max out at 295

if i set it to 300X8
windows 98se got registry error..consider max out already?



check this out...
http://labs.zol.com.cn/2005/0408/162519.shtml


amd 2800+ OC on par with P4 3.4E and AMD64 3400+

page 9 till 12..dunno read chinese..but can understand the chart mah..

cyclone u havent tell me how u set the Vcore ler..

mine cannot set in asus bios
ur abit can set vcore in bios?

My vcore is adjustable from bios 1. It hardly find mobo without that option. Do u try flash to latest bios de? Different chip have different potential. U like buying jackpot when buying the proc. Even with same stepping , they cant be identical in OC potential.

This post has been edited by Cyclone87: Sep 4 2005, 10:30 PM