when u want to overclock ur cpu, u use your mainboard and at the same u overclock also ur ram unless u set ur ram divider lower from stock. actually i do not sure which one is affect coz i never try my previous proc (X2 3800) on other board to check the speed whether it stays on its stock clock speed or not. Maybe the mobo itself cannot read the clock accurately. For gfx, if u oc, it will only affect ur gfx cards and maybe ur board also. That's why when u oc, it will shorter the life of your hardware.

My previous tforce550, after oc, then, whether i set it to oc setting or stock setting, when i wanna check my Cpu-Z, it gives some 'low-db sound' like 'eeeee..'.

ermm.. i dunno about this. like i said on the top reply. Maybe the mobo cannot read the clock accurately.

I found that biostar tforce 550 can't lock the PCI clock at 33.3 MHz, if I want to overclock my computer. I've updated the BIOS to latest version, but after checking with clockgen utility, the PCI lock still not applied for this mainboard. Any user experience this, and able to overcome this problem?

PCI lock is important if we want to use any PCI card on this mainboard. Who know, in the future, we want to use the latest creative audigy PCI card, we want a stable environment, thus need the PCI locked at 33.3 MHz, isn't it?

This post has been edited by coolblade: Feb 1 2007, 06:00 PM

u try the bios from biostar website? I dont know about the bios from biostar website.
Yeah. Biostar TForce 550 can't lock the PCI clock at first (i dont know about new TForce550 whether they fix this problem or not)

But i try before the bios recommend by soulfly (Refer to this reply) and it works.

but now there are newer bios at the site also
http://lejabeach.com/Biostar/6100-550/6100550bios.html

u can try this

aiseh bro..dun moody2 be happy mate..

maybe its just ur mobo didn't read it accurately..i know that u're using mobo same as mine but my cpuz reading just fine if it is on default setting.. Have u tried restart n run the cpuz again a few times?

currently using cpuz 138..its the latest one rite?
maybe i should try to use the older version..

@camedemac

I've downloaded the BIOS from http://www.lejabeach.com/Biostar/6100-550/N5taa703.rar. Then I flashed the BIOS but after checking with clockgen utility again, I am still unable to set the PCI clock locked at 33.3 MHz.

This drove me crazy a bit. How I able to overclock if this PCI lock issue unsettled??

This post has been edited by coolblade: Feb 1 2007, 06:27 PM

hmm.. actually i've really2 push my tforce before, burn-in for 1 days many times, maybe that's why this happen
anyway, whats ur latest update? reach 3GHz already?
i have am2 rig already now but its really2 low end bro. try to save some money now to build another AM2 rig (coming soon but dunno how long)

*moody coz u never come to visit me larr

---

Added on February 1, 2007, 6:31 pmerm.. have u reset your cmos after update?
bcoz the bios that recommend by soulfly really works.
have u try the newer bios in the 2nd link (lejabeach.com)?

This post has been edited by camedemac: Feb 1 2007, 06:31 PM

yup that 1 is the latest.. btw i'm using v1.37

ask @camedemac how he deal with it..he use that mobo last time.. maybe he can help u answer ur question then..

wow.. new rig ar

aiseh bro.. quite busy nowadays.. if got time sure go visit u la..

@camedemac

Yes, I have resetted the CMOS after update. But still can't lock the PCI clock at 33.3 MHz. Why?

I just noticed that the tforce 550 mainboard I used is revision 1.2 (imprinted on the board)

From biostar website, they already have revision 1.3 board.

I wonder if I can ask the shop to replace my mainboard to the latest revision? This could be a solution for locking the PCI clock, as I am sure the latest revision overcome the problem...

This post has been edited by coolblade: Feb 1 2007, 06:48 PM

eheh.. bro, no AM2 sli motherboard that really cheap and overclockable?
really interest in

Abit KN9 SLi (NF570 SLi)
MSI K9N4-SLi (NF500 SLi, not sure about overclockability)

u dont bring DFi?

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Added on February 1, 2007, 6:52 pmi forgot what revision of my board. when u bought this mobo?
i bought my mobo before long time ago (early august 2006 i think)
i'm not sure if they can replace ur board with other revision unless ur mobo is faulty, then they change with new one

This post has been edited by camedemac: Feb 1 2007, 06:57 PM

not yet bro.. bro.. save money and shoot for NF590 SLi la...

I bought this mobo yesterday, after I got PM from soulfly (I asked him, which is suitable and affordable mainboard).

@zamree7

are you the same person of modernopc id?

This post has been edited by coolblade: Feb 1 2007, 07:02 PM

whoa.. the board that use NF590 SLi chipset really2 kill me lorrh..
sure 1 year cannot eat coz buying this mobo
have DFi produce NF590 SLi with infinity series? coz cannot afford the lanparty series bro

*inform me bro when u bring in DFi mobo

actually bro soulfly give a very good solution. tforce550 is overclockable and affordable with UV-slot 'DFi-look-alike'. but i'm not sure about the revision that really affect the pci lock clock thingy. . i've already sold my tforce long time ago try googling around about this pci lock thingy.

anyway, what software u check the pci lock clock?

*Zamree7 is not same person with modernopc id

This post has been edited by camedemac: Feb 1 2007, 07:08 PM

@camedemac

clockgen utility from http://www.cpuid.com/clockgen.php

I am using the latest version of this software.

Well, I thought u are using the same mainboard as mine. So, what mainboard do u use now? Sure a bit better than the old one.

This post has been edited by coolblade: Feb 1 2007, 07:10 PM

no la..i'm partner with moderno

btw luckily i bought biostar 570U, dun have these pci clock problem.

@camedemac

ok wat bro buy NF590 SLi.. then u can loose some weight worr..

i forgot about the bios setting in tforce550. do you find the PCI Clock Lock menu (i dont know which mobo i found this)
i'm using Biostar Tforce 550 (same as u) before but sold it after almost 2 months use . Now i'm using low-end mobo only (abit nf-m2s not nview series) pair with sempron 2800. this system only standby for vista only .

that why I am not satisfied with my mainboard. I've spent RM 290 to buy this mainboard. I do not think I should spend money again to look another mainboard.. sigh... what a bad timing...

I got no problem changing mainboard without reinstalling Windows XP, I just using sysprep utility, and voila, take only 6 - 10 minutes to complete migration from old mainboard to new mainboard. Personally I think that buying a new mainboard is not a problem if you have a lot of money, but i am in tight budget nowaday.

This post has been edited by coolblade: Feb 1 2007, 07:23 PM

ngeh3x.. cannot lorh. then all my fat will just go like dat only. So 'rugi' laa
wat NF590 SLi do u prefer bro?
havent searching about the Performance of this chip yet

actually no need to change mobo laa bro. i think there's a solution for your mobo. what proc u use now bro?

coolblade, latest bios revision solved the PCI bus unlock problem.
Please get any bios newer than BIOS N5TAA615.BST.

It isn't about the board revision, it should be the bios instead.

Look at my sig below. I am using AMD Athlon64 3000+ AM2 CPU (Orleans)

Do u mean this page? --> http://www.biostar.com.tw/t-series/downloa...tails.php?id=21

I've tried this, but not to avail yet in locking the PCI clock.

This post has been edited by coolblade: Feb 1 2007, 07:40 PM