I Want 200+ FSB

[Rashad]

Allo
(I'm a bit new to most of this stuff)
Just a few weeks ago I baught an 8RDA+ thinking I could get a most exellent overclock and therefore a very cool 3DMark score, especially after looking around scores of websites about the board.

First thing is that the voltage and temperature readings seem to be a bit off on the board - System temp comes up as Aux temp (system temp is about 32C when on my old Jetway V266B mobo it was 24C. its the same Lian-Li PC61 case!) and Sys temp reading is 7C or -7C.
Vcore and Vdd readings seem to be swapped over. Is there a fix for this, or is the mobo just warmer?

I'm currently trying to get a decent FSB on this thing. Only thing is, as soon as I get up to about 190fsb 3DMark01 seems to crash as soon as the first test starts. I step up the voltages on my CPU and memory yet it makes no difference. However, Sandra2003 seems happy enough running CPU and RAM tests at this speed, is it something to do with 3DMark? Lowering the multiplier does'nt help (although these TBred B's are supposed to be very overclockable aren't they?).

I'm a little pee'd off because i've spent a lot of money on the whole computer and its a shame the mobo behaves like it does. Here's what i've got:

Athlon XP 1800+ Tbred B (AXDA1800DUT3C JIUHB) cooled by Swiftech MCX-462+ and 120mm YS-Tech 125Cfm
Twinmos DDR466 PC3700 2.7v (Twinmos Chips)
Creative Labs 3D Blaster GF4 Ti 4600
Lian-Li PC-61
Toshiba DVD
Plextor 48x24x48
Zoltrix phantom modem
IBM DeskStar 40GB 7200rpm
Tsunami 300W PSU (Generic i suppose)

I know thats a heck of a lot but any help will be appreciated!!

 

[drewdogg808]

what nb stepping do you have? earlier steppings (a2/a3) seemed to have a bit more trouble hitting 200fsb out of the box without mods.

 

[MoFunk]

Your CPU may be at it's max. Try to lower the mult a bit (bandwidth over MHZ!) Also make sure you are using active cooling on the NB. This helps out more then you would think!

 

[Insidious]

Does that board lock the PCI frequency? Your symptoms sound a bit like you are loosing the PCI bus. Either that or as suggested above, your CPU is maxed. I agree that lowering your CPU multiplier is a good next step.

-Sid

I did chuckle a bit when you complained that 190 MHz is not a decent speed though.

PS: you can't really compare (accurately) from one brand/chipset MoBo to another wrt temperatures. The sensors are placed differently, and most BIOS "tweak" the temperature readings (attempting to compensate for thermal gradients from source to sensor). Best bet is to see what your stock temperatures are and compare with that as you progress with the OC'ing.

example: My MoBos report 3 temperatures, system, CPU surface, and CPU core. Of the three, my system temperature is reported as the highest on the winbond POS that ABit provided for Windows monitoring. Just look for trends... not the exact value. And certainly, don't bother comparing different MoBos to eachother.... they lie

 

[screw3d]

What speed are you running on your 1800+? They are not very good overclockers. I had mine going at 2GHz but had to bump it down a little at 1950Mhz after putting in another stick of RAM.

 

[lobadobadingdong]

I Want 200+ FSB

buy a P4, (just kidding), what about a 2500+ Barton should hit 200 fsb fairly easily.

any 133 fsb tbred-b that hit's 200fsb without water cooling is one of those lucky deals, not like you can go the factory and hand pick the one you want.

 

[Rashad]

Thanks Guys!

I got the impression that this TBred B was an excellent overclocker. Well, thats when I read the stepping codes and all that and saw that its a downgraded 2600. I put the Vcore upto 1.75v and couldn't get past about 1860MHz. Aawww, I had really high hopes for that chip .

I've not checked the NB stepping but the SB says its an A3. The board is a V1.1.

So I guess its a Vantec Iceberg job then huh? Copper or Aluminium? Any real difference?

Will a Vdd mod help?

Oh, the readings are only wrong because I was using Winbond HWDoctor, it doesnt give the readings in the right order (DUUH). But i'm still confused as to why the system temp is 10C higher than my old board. Where exactly is the the sensor fo the mobo anyways?

Btw, does anyone else have Twinmos DDR466 (Twinmos chips)? How do they do compared to some others?

Thanks again

P.S. I've just upgraded to the latest bios (3507), I havent had a chance to play with it since but i'll le you know if anything has changed for me.

 

[Shimmishim]

are you running a 8rda+?

i think you are... .. yes you are...

yeah.. you have an earlier board that can't get to 200 mhz w/o a mod to the board

the only suggestion is to mod the board or get a new board

you need to find an 8rda+ that has the c1 stepping nb/sb

 

[LastRide]

My 8RDA+ has an A1 northbridge but the southbridge is A3.I really don't know if an A1 southbridge is all that important.Anyone confirm this?.I haven't tried my 8RDA+ mobo yet as I am waiting for parts.

 

[drewdogg808]

Originally posted by: LastRide
My 8RDA+ has an A1 northbridge but the southbridge is A3.I really don't know if an A1 southbridge is all that important.Anyone confirm this?.I haven't tried my 8RDA+ mobo yet as I am waiting for parts.

that's the latest stepping. congrats. u should hit 200+ fsb fairly easily.

 

[Rashad]

 

[Rashad]

Ok, I'll be getting me that Vantec Iceberg. But i'll have to think about the Vdd mod. How much of a gain should i expect with the Vdd up to 1.85v? I hope the mosfets and thingies wont be too hot at this voltage

Btw, how can I be sure what I have is a Tbred 'B' and not the older one. WCPUID shows something like:
Family 6
Model 8
Stepping 1

 

[MoFunk]

Definitely get the Iceburg. This alone got me past 200. I was stuck at 195 until the Iceburg and then I was able to get to 215. I also put a zalman on the southbridge but the extra HS that comes with the Iceburg should work as well. I have not done anything to the mosfets and they are working fine. I have read mixed reviews on that and most are saying that they are made to take so much heat anyway that it really does not make much of a difference. I would say hold off on the Vdd mod until you absolutly feel it is needed. I have given it thought, but still have not talked myself into it.

If you can easily get to all the markings on the cpu you can go here http://mp3.zonebg.com/cpu/cpu.php and find out.

 

[Killrose]

Originally posted by: Rashad
Ok, I'll be getting me that Vantec Iceberg. But i'll have to think about the Vdd mod. How much of a gain should i expect with the Vdd up to 1.85v?

My 8RDA could not do above 190MHz stable with-out the vdd mod. I installed a 12-turn Bourns 1k trimmer pot and now at the lowest setting (1.76volts indicated by monitoring) I am stable upto 208MHz FSB, and keep it at 200MHz. I removed the stock NB heatsink, removed the thermal pad and placed ASIII on it. I also added a heatsink to the SB.

 

[RideFree]

I read the stepping codes and all that and saw that its a downgraded 2600

Not so...
This turned out to be an error on a simple matter of coincidence. The 1800+ is just an average overclocker.
Sounds like you've been at Overclockers.com... If not
overclockers.