VIA K8T800 socket 939 : what is maximum FSB you ever got?

[tictac]

:lol: VIA K8T800 socket 939 : what is maximum FSB you ever got?
My friend(ianho@lowyat.net) manage to do 310MHz FSB on his k8t800 board... anybody did this far before?

Is it a new WR for K8T800 chipset FSB ? never seen anybody go this far before....

Spec:
-------
AMD64 3000+(Venice) @2.8Ghz,
TT Silent Tower HSF with UFO Twin Blade fan,
Abit AV8 3rd Eye mobo,
2X512 Kingston KVR RAM,
Leadtek 6600GT,
Vantec Fancard,
80Gb WD HDD,
480W Enermax Coolergiant Red,
Custom Case with 4 Cooler Master fans.

CPU-Z Verified:
310MHz
http://valid.x86-secret.com/show_oc?id=20334

:YIPPIE:

[SIOUX]

i dont have any screenies from my ABIT AV8 times, but i did 320 without probs. i think quit a lot of people have gotten there with AV8. :)

[drunkenmaster]

is that board k8t800 or the pro version? the locks were iffy on the chipset to say the least but afaik works 100% of the time with any divider locked in, just 1:1 the lock wouldn't always work. so yes, high fsb is piss easy on that chipset in anything but 1:1. from what i recall it was mainly the a8v asus boards that had some major issues hitting such high fsb, they most often wouldn't break 270mhz.

its more likely to be the unofficial record as no one really uses the chipset for high overclocking and haven't for ages. tis a really nice chipset but just not as easy to hit as good speeds 1:1 and they also have a lack of well made boards with the needed voltage options.

[Micutzu]

Varzmaster posted this a while back on a romanian forum:

Abit AV8 / Winchester 3000+ @ 5X340 / 256MB Corsair 3200XL @ 340Mhz 3-4-4-10

http://xtremesystems.org/forums/attachment.php?attachmentid=31498&stc=1

And with 4X multi (memory running at only 275Mhz, even if CPU-Z is showing 344):

http://xtremesystems.org/forums/attachment.php?attachmentid=31499&stc=1

[tictac]

my bad... :slap:
anyway nice FSB there Micutzu
congrats

and thanks for the info guys.... :woot:

[tictac]

is that board k8t800 or the pro version? the locks were iffy on the chipset to say the least but afaik works 100% of the time with any divider locked in, just 1:1 the lock wouldn't always work. so yes, high fsb is piss easy on that chipset in anything but 1:1. from what i recall it was mainly the a8v asus boards that had some major issues hitting such high fsb, they most often wouldn't break 270mhz.

its more likely to be the unofficial record as no one really uses the chipset for high overclocking and haven't for ages. tis a really nice chipset but just not as easy to hit as good speeds 1:1 and they also have a lack of well made boards with the needed voltage options.

sorry ... it is VIA k8t800 pro
AV8 rev1.1

and it is on Bios 20... :fact:

Bios setting:
External clock- 310/66/33
AGP ratio- Fixed(66mhz)
CPU V- 1.6
AGP V- 1.65
DDR V- 2.8
NB V- 1.6
SB V- 2.55
HT V- 1.25
DRAM Clock- DDR 266
LDT bus fequency-FSB X 3
RAM settings- 3,4,4,8

[TMM]

320 on the Abit Av8 1.1 that i had. no Screenys though and 3d was hella unstable on that thing :s

[calcal]

dang those av8 kicka**

can they run dual channel?

[TMM]

Yep. though mine couldn't run 3dmark, or rather anything 3d at over 255htt~ with 66mhz AGP lock :slap:
iirc it was a memory / lock problem
running mem @ 266, or AGP lock @ 74mhz fixed the problem... totally messed up board imho.

[drunkenmaster]

yeah, 3d stable was very difficult iirc, that seems to often be the case with via chipsets, or maybe just on ath 64 stuff from them, not sure, i can hit hella fsb's with a divider, but tbh it doesn't help performance in the slighest, running 275 1:1 or at a guess 340/275 with a divider, given same mem speed same bandwidth will be achieved and almost identical performance. but above 270 or so 3d stable on my a8v, av8, and i think one of the gigabyte boards was not really possible.

[Stuperman]

255~ with my Asus A8V deluxe, that's what i get for going 939 really early (july/04)

[sl1m shady]

A friend did 320 with a winchester 3000+ and patriot xbl asynch on an abit av8 3rd eye

[pasatoiutd]

Congratulations, Micutzu. It seems that the air from Ploiesti can really make some miracles.

[Micutzu]

Thanks guys, but i've said in my post, those are Varzmaster's screenshots, not mine.

[gergo]

Nice fsbs :woot:

When i set the cpu to 300*8=2400mhz, then the cpu is stable( i tested with Prime95) but the 3d doesn't work :( . I use mem divider 266, becouse my rams don't go together upper than 430mhz.
Why not work the 3d?

[AH^DK]

313x9 on A8V, 308 rock stable.

[Zangetsu]

Yep. though mine couldn't run 3dmark, or rather anything 3d at over 255htt~ with 66mhz AGP lock :slap:
iirc it was a memory / lock problem
running mem @ 266, or AGP lock @ 74mhz fixed the problem... totally messed up board imho.

So what you mean is just put mem on a divider and agp lock to 74MHz and its all 3d stable for 24/7 use?

Just curious cause mine is not 3d stable as well and if this solves the probs then I'm gona try it.

[kj™]

anyone got max fsb for an asus a8v deluxe rev 2.xx??
does it exceed 300?

[AH^DK]

anyone got max fsb for an asus a8v deluxe rev 2.xx??
does it exceed 300?
BIOS = 300, Use Clock Gen to push further.

[kj™]

BIOS = 300, Use Clock Gen to push further.
i meant that wat max fsb that this board asus a8v 2.xx is averagely stable?
im sorry..

[ianho_]

Here's my latest attempt at highest HTT for my AV8. 345HTT. Screenie attached. Also CPUz verified at
http://valid.x86-secret.com/show_oc?id=20654

[tictac]

Here's my latest attempt at highest HTT for my AV8. 345HTT. Screenie attached. Also CPUz verified at
http://valid.x86-secret.com/show_oc?id=20654

yeah... this is the man .... :buddies:

:welcome: to XtremeSystems!!!!


ianho... is it 3d stable at those super high FSB...
most people said anything higher than 260MHz will crash 3d application away... :hammer:

is it posible to play games :gamer: or 3dmark benching at 300MHz HTT ?

[ianho_]

yeah... this is the man .... :buddies:

:welcome: to XtremeSystems!!!!


ianho... is it 3d stable at those super high FSB...
most people said anything higher than 260MHz will crash 3d application away... :hammer:

is it posible to play games :gamer: or 3dmark benching at 300MHz HTT ?

Well, I just got my water cooling setup n running fine now. Finally got down to Priming n 3DM05 benchies. I'm still watching my temps with the new set up so I'm still being conservative with the OC. Right now am at 290X9. 3DM05 without a problem. I've been benching it like mad all day trying to get to the top of Lowyat 8 pipelines rankings. Now at #5 haha. So yeah, I can say 3D is rock solid at 290X9. B4 this I cudn't even run 3DM05 when I had the AGP fixed at 66. Then I heard sum1 say try 74. So I tried it n it works a charm. Been Priming 290X9 for the past 5 hours. If all goes well, will Prime n bench 300X9 2moro. BTW thanks 4 the welcome :toast:

[babyelf]

lol u made it..

show us more :D

[ianho_]

lol u made it..

show us more :D
Well, this just my 1st session of Prime n 3DM05 since getting my Venice 3000+ n AV8 combo. Pretty decent results I wud say. Gonna push for more soon. But here's the screenies of 290X9.
http://i6.photobucket.com/albums/y209/ianho_/290X9.jpg




N here's the ORB link showing the 290X9 setting passing the 3DM05 with flying colors. Hahaha. Who dares to say the AV8 can't do 3D above 260HTT now?
http://service.futuremark.com/compare?3dm05=904590

[varzmaster]

Heh... time to take out the old AV8 for a spin... got me some new DDR600 capable RAM (I'll try some 1:1 action) :)

Nice scores! :toast:

[ianho_]

Heh... time to take out the old AV8 for a spin... got me some new DDR600 capable RAM (I'll try some 1:1 action) :)

Nice scores! :toast:

Hope u don't beat my 345HTT. Hahaha. Coz I only managed to beat ure 344 score by 1HTT. BTW, did ure AV8 show the 4 Multi in the BIOS by default? I had to trick the BIOS into showing the 4 multi on mine. The default on mine shows the lowest multi as 5. I only knew there was a 4 multi hiding sumwhere in there coz I saw ure CPUz screenie showing 344X4.

[gergo]

Can 37MHz PCI frequency do any harm to the HDD or the soundcard? :confused:

[ianho_]

Can 37MHz PCI frequency do any harm to the HDD or the soundcard? :confused:

I'm not sure bout that but I don't think it actually harms the HDD even if there r side effects. I think worst case wud just b corruption of Windows. I've been Priming n 3DM05 benching my rig at 290/74/37 the past few days n have not had any problems.

[urbanfox]

247 on a first generation s754 board.

[gergo]

I'm not sure bout that but I don't think it actually harms the HDD even if there r side effects. I think worst case wud just b corruption of Windows. I've been Priming n 3DM05 benching my rig at 290/74/37 the past few days n have not had any problems.

Ok :)
I will test it tonight.

[TMM]

So what you mean is just put mem on a divider and agp lock to 74MHz and its all 3d stable for 24/7 use?

Just curious cause mine is not 3d stable as well and if this solves the probs then I'm gona try it.
apparently...
Both 74mhz agp and/or 266mem divider seem to help to get 3d stable on the AV8.

I never got to properly test @ 74mhz AGP as i had a 9800pro at the time that i had the AV8, and that didn't like over 71mhz~ AGP. I tried 8:2:1 agp/pci divider and that seemed to work pretty well

I remember getting through a few hours of 3dmark2003 looping @ 280htt at one stage with mem @ "266" setting. I didn't get further as the AGP wasn't locked (8:2:1) and thus my 9800pro was crapping out.
It was pretty useless though - my memory was running well under 200mhz with those settings.

moral of the story - muck around with the locks/pci-agp dividers and memory dividers and see what you can get!

[ianho_]

apparently...
Both 74mhz agp and/or 266mem divider seem to help to get 3d stable on the AV8.

I never got to properly test @ 74mhz AGP as i had a 9800pro at the time that i had the AV8, and that didn't like over 71mhz~ AGP. I tried 8:2:1 agp/pci divider and that seemed to work pretty well

I remember getting through a few hours of 3dmark2003 looping @ 280htt at one stage with mem @ "266" setting. I didn't get further as the AGP wasn't locked (8:2:1) and thus my 9800pro was crapping out.
It was pretty useless though - my memory was running well under 200mhz with those settings.

moral of the story - muck around with the locks/pci-agp dividers and memory dividers and see what you can get!

I've been running at 290/74/37 without any probs. Just worried if there r long term side effects on my graphics card. Will it harm the GC in the long run coz I game a whole lot.

[BUNGL3]

Hello all,

I must say I have been waiting to see a post like this for over a month. I bought myself an AV8 Third Eye and a 3200+ Venice and I have been losing my mind ever since. I think I have tried everything in the world to get this thing to be stable in 3D when OCing over 250 HTT and it just doesnt want to work for me. Last night as a goof I spent 4 hours trying all sorts of different things until I came across the fact that if I set the LDT Multi at 1X I can get this pig to OC up to 267 HTT x 10 at 1.6 volts and stable in 3D. But with the Multi that low is it really worth it ? Also with this crappy Kingtons HyperX I have I end up running 3-4-4-8 timings. Im going to try ianho's settings I hope they work. Anyone have any suggestions on better memory for this rig. I have the following setup.

ABIT AV8 Third Eye BIOS 19
AMD A64 3200+ Venice currently at 2.5 Ghz
Kingston HyperX PC4000 3-4-4-8 blech
W.D. Raptor 74Gig
Zalman CNPS-7000B-Cu
BFG 6800 Ultra OC w/NV Silencer 5
Leadtek Winfast Tv Tuner
SoundBlaster Live !
NEC DVD-RW/CD-RW
Antec SLK-3700BQE
400 watt PSU

I was thinking even the cheap Corsair Value Ram has to better than the stuff I have now. It was good when I had a P4 setup to run at 250 FSB at 1:1. But for AMD rig I need low latency not speed.

Thanks in advance

[BUNGL3]

Well its a no go for me with that fixed 74Mhz. Whne I try it my hardrive doesnt work. (SATA W.D Raptor) I also tried the 266 things buts till no go. :(

[targ]

this is a very useful thread,thank you.

hopefully i can get some decent HTT out of this thing, with my new pc5000 ram.

@ BUNGL3: i wouldnt worry about ur LDT being that low, but if u want to check, run superpi @ 250x4 and 250x1 HTT and let us know.

targ

[BUNGL3]

I put a bid on a MSI NEO2 Platinum on Ebay. Im sick of this board its really pissing me off and its only been a month. If anyone wants it first $100 takes it. Im also selling my ram and I am looking for something new. Any suggestions on $120-$140 ram ?

[fullup3]

Wow, I must say that this thread has helped me go from 2.54 max 3d on my 3200 venice to 2.65 in about 10 minutes. I lowered my htt to 1 like BUNGL3 tried to do, and it works! I have tried f-ing everything else except this. I still can't imagine why this helps 3d stability in overclocking, but it does. BTW, my superpi and 3dmark benches have only gotten better, so the low htt doesn't seem to be bottlenecking me as of yet.

SWEET-ASS.

Gonna see if I can push any further!!

[fullup3]

Now I'm @ 264 x 10 with 2x htt and 3d stable. I'm making progress with this damn av8!

I need a new board, because now I'm thinking that this chip isn't as bad as I thought...maybe just the board.

[BUNGL3]

My feelings exactly :toast:

[MusicIsMyLife]

Highest 3d-stable htt on my av8 was 285 mhz. Ldt 4x because 5x didn´t work and lower than 4 wasn´t stable (bluescreens, reboots).

[qujck]

sorry for my boon question, but where can i change the ldt or ht multiplier
in the A8V Deluxe BIOS from asus.,
There is a HTT option in which i can change from 1000MHz to 800 and 600 a.s.o.

Is that the option?

[kj™]

There is a HTT option in which i can change from 1000MHz to 800 and 600 a.s.o.
thats it..1000 is to 5..
800 is to 5..and so on..

[targ]

1000 = x5
800 = x4
600 = x3
etc

targ

[qujck]

ok thx but for what shall i do this.
my CPU runs @ 1000 exactly like @ 800 or 600.

[gergo]

to ianho_:

Is it still working at 290/74/37??? Are there any side effects on the graphics card???

( My mobo works at 280/66/33 but i want 300/74/37 :) )

[ianho_]

to ianho_:

Is it still working at 290/74/37??? Are there any side effects on the graphics card???

( My mobo works at 280/66/33 but i want 300/74/37 :) )
I'm using 300/74/37 for my 3DM05 assaults. Very stable. I've tried this with my 6600GT n also the current 6800GT. Both r stable at 300/74/37. :banana:

[gergo]

I'm using 300/74/37 for my 3DM05 assaults. Very stable. I've tried this with my 6600GT n also the current 6800GT. Both r stable at 300/74/37. :banana:


Thx :toast: