just looked at overclockers.com....
they have a link to ExcaliberPC.com that has guaranteed xp1700 tbredB JIUHB 0302 for $56 USD with $4 flat rate shipping(located in Fremont,CA)

and as already mentioned,
Vibe Computers has xp1700 tbredB's JIUHB (previously JIUCB's) with unknown chip dates for $98 CAD / ~$64.50 USD with close to $10 CAD to ship to me, your mileage will vary (located somewhere in Canada)

both places are offering xp2100 tbredB's for about double the xp1700 prices

happy overclocking!

is the 2100 tbred b factory unlocked as well?

I've finally got my fingers in a JIUHB 0302.

Will post some pics tomorrow...

BrianW:

All the Tbred Bs are unlocked, but motherboards differ widely in how they handle the 5th bit (the 5th L3 bridge). Some won't boot with it open, some won't let you adjust multipliers if it is open but give you 5-12.5x if it is closed, and a few will set that bridge "LO" or "HI" in the bios and give you full multiplier range 5-24. People are having great luck with the dipswitches on the A7V/A7V-133 series, but ironically most Kt266A and KT333 boards are less multiplier adjust friendly. The problem for my Epox 8K3A is either in the northbridge or in the Bios multiplier tables, but Epox is pushing the 8K9A2 and the 8RDA as having multiplier control rather than providing a bios fix for the older board.

If your board doesnt let you unlock higher multipliers you can always solder on dips or jumpers to do it manually...

wootness!
got my tbred b from excaliburPC today (ordered it tuesday)

AXDA1700DUT3C 9------------
JIUHB 0302XPMW

now if i could only track where that 8rda is at...

I am planning on getting a NForce2 board... do you know if that board allows for the multiplyer adjustment on tbreds?

Thanks,

Brian W

im pretty sure it (8rda/+) does right out of the box. if not, i bet with a bios update will fix it.

anandtech did a huge azz review of 6 nforce2 boards here and the last paragraph:

"It really isn't in the least that the 8RDA+ was the best overclocker out of our six nForce2 motherboards, as Epox has made much of their reputation on highly overclockable (and reasonably priced) motherboards. So, with the above configuration we were able to hit 194MHz FSB (multiplier set to 8X). On that note, it's worth mentioning that the 8RDA+ is yet another nForce2 motherboard that is able to adjust the Thoroughbred-B's multiplier without having to perform any physical modification to the CPU bridges as was the case with previous generation Athlon XP processors (namely the Thunderbird and Palomino processors).

The 8RDA+ BIOS also comes with a ton of multiplier options ranging from 3X to 24X. These multiplier options should satisfy all users. " anandtech.com

The JIUHB is ok.

2 Ghz @ stock voltage. May need to raise the voltage 0.025 to insure 100% stability.

Buning it at 1.8 Votalge no OC now. Maks temps with BurnK7 is 30 degree.

Those JIUHB 0302 looks good too, I'm seeing them hitting about 2.4 - 2.5 with better cooling and between 2 and 2.1V.

Oh I forgot to mention that I hit 100% overclock with -7°C water :D

http://www2.arnes.si/~mlivak/Benchmarks/2938%20crop.GIF

And 2865 MHz benchable:
http://www2.arnes.si/~mlivak/Benchmarks/2868.JPG

My record PC Mark 2002 score is here http://service.futuremark.com/compare?pcm=1064200

Probably the highest straight water cooled overclock on AMD cpu.
Now I'm also waiting for nforce2 to improve that 3D mark score a little :)

I just made an order online for some Corsair PC3500 C2 memory pieces so I can get rid of my 180FSB limitation. Hopefully I will be able to get around 210-220FSB with these.

One note about the 8DRA+, I tested it out last night and unless you physically mod the chip in some way, the max multiplier you can obtain without moding is 12.5x Tried 13x and the MB just went dormant for a few seconds and came back with 100FSB @ stock multiplyer. The board did NOT reset the BIOS, only put the chip in "safe mode" I adjusted the multiplier back down to 12.5x and it booted just fine @ 2250 once again.

Running stable at 1700+ JIUHB 0302 @ 180x12,5= 2250MHz Vcore 1.9

This is totally stable but i need to raise the Vcore to get any furter.

You have to mod the last L3 jumper to go above 12.5 on the 8RDA+. Some people on the OC-Forums were talking about a method of popping that jumper with a 9volt battery. You should check that thread out (it is in the AMD CPU subforum).

careful. You may find that only killing the 5th L3 doesnt get you where you want to go. That results in bridge layout of c-c-c-c-o, and this doesnt' translate to a valid multiplier. There is no difference between blowing up a bridge and just shorting the socket pins on the backside of the mobo; why risk the chip?

So your mileage may vary. I couldnt get that to work on my 8K3A; I had to also short the 3rd L3 and get c-c-o-c-o, or 15x.

Much more info here:

http://www.beachlink.com/candjac/Workarounds.htm

and here:

http://www.beachlink.com/candjac/TbredDecode0.htm

c-c-o-c-o is 13x.

so blowing the third and fifth will result in a 13x when 8x is selected in bios, if using a KT333 board.

Crap...can't go futher. My sound is going for a walk, and Unreal won't start because the sound is crapping up. This is when the FSB is set too high. So i need the mod...

I will blow the CPU when I get time to do it.

oops. Meant c-c-c-0-0

13x not easy to set up with just wires in socket; 15x is :)

:cool: :cool: :cool:

Airspirit, why are you posting stepping of my chip??? I just got one exactly the same (except that 926..... thing):D :D :D

Think it's time for another revision of a wblock...:rolleyes:

Not bad for around 60$ mwahahahahaha:evilaugh:

I've put in two now, and both are running over 2200 Mhz stable on half-ass air cooling and only 1.775V. Decent chips. If I was going to get one for myself, though, I'd probably shell the extra $35 on a AIUHB 2100+ for the extra headroom per voltage and the high multiplier unlock. I didn't get to play with a JIUHB (I wish!), but I think the extra security for such a small cost is prudent.

2306MHz at 1.9Vcore.....testing stability right now.

good overclock so far quickmjc

i jsut got my epox 8rda about 15 mins ago from the ups guy, got everything else here except a small hard drive and cd drive for it, and im trying to contact my friend now and have this thing up and running pretty soon (got a big azz lan on march 7-9 i want to get ready for with all the kinks worked out)

happy,happy,happy....

Epox 8K9A, JIUCB 1700, 256 Mb Kingmax 3200...
So far, so good, gonna tweak it more tomorrow...
:D :D happy,happy,happy....:D :D :D

Update:

Well I got my (2) Corsair PC3500 256Mb units in the mail lastnight and installed them. Without the Vdd mod, I was unable to push my board over 180 reliably. Soo I am in standby mode till I have enough time to install the Vdd mod.

One very interesting stiuation happened though. I testest my system with UT2003 benchmarks before and after the new RAM was installed. With a single Corsair PC3000 512MB unit (CAS2-3-3-7 timmings) I would get a bot match score of ~69FPS @ 1600x1200x32. NOW with the dual Corsair PC3500 256MB units (CAS2-3-3-7 timmings), I get only ~66FPS. The FSB settings, Vcore, multiplier, and other BIOS settings are all the same. WTF!?!?!??!

Will get back in touch after completeling my Vdd mod.

UPDATE:

Just modded the board for 1.82V on the chipset and currenty running (2) Corsair PC3500 256MB sticks @ 210FSB. Total clock speed as of right now = 2310Mhz @2.0V I must admit that it is not completely stable but it is burning in and seemes to be getting more stable the more I use it.

(I think my problem is that my PSU is not getting enough current to the chip. My +5V rail is between 4.79-4.83V, need to fix that)

My goal is for 2500+Mhz so it will take a bit more to get that.

Yeah...bout the same here.

2306Mhz @ 1.9 but not stable. It's everything els than the chip :rolleyes:

The mobo is shitty in holding the voltage stable, and my PSU sucks bigtime. Though the mem. is A-data...

Well, as it turned out, there was a few things that was causing my instabilites.

First, PSU. I would have random reboots, BSOD, and Explorer errors. It would also randomly lockup trying to access the BIOS. (very annoying). Replaced the Enermax with the Antec TruePower 550W and my BIOS lockups and voltage irregulations went away.

Second, RAM. The RAM itself is wonderful but I discovered that if I used the RAM units in the slots that the MB recommended for 128bit BUS, it was unstable. I moved both units closest to the CPU and my Explorer errors and RAM timmings were fixed.

Third, OS. Because of the combination of RAM and PSU, my OS got screwed up. Luckly, I created a disk image before I started to heavily OC my system. Restored the image and updated the drivers and that solved my random BSODs.

I am now running 99.99% stable at 2310@210FSB w/ 2-2-2-5 RAM timmings @ 2.05V.

The CPU runs at about 40C underload, which is a bit high for my taste but it will have to do. :)

look, having bad ram doesnt prevent you ppl for overclocking.

just got a 1700++ JIUCB BUT:

-the crapiest DRD 333 ram i found ( 2*256, i can give you the manufacture later)

its at 2400mhz stable @ 1.8v (keeps running prime95 with no errors) and mbm says it has a temperature of..... 58 degrees....

i agree, the cooler is the cheapest copper one i found, i just adapted in it a 120mm fan :shrug:

in fact, i can get this with a stick of DDr 266 i have also.

but in bios you have to set timings low, like 7-3-2 with cas at 2.5, and letting the RAm diviser in auto. in my system its at 60% i think (122 mhz on ram)

this is just for testing the processor, if you like the overclocability of it, go buy some decent ram for it, because it deserves it :)

jtroutma!, Does the Epox mobo use the 12v rail for the CPU?(does it use the extra 2 x 12V, 2 x Earth power plug?. because ATX plugs have only one +12v wire). The Abit NF7 series uses 12v for the CPU instead of the 'traditional' 5v rail. Antec has an independant 12v rail (not tied to 5v as 'usual') with it's own voltage sensing/correction unlike others makes. This could account for the change if your old Ennermax was a half decent wattage...

Antec seem to be the PSU of choice for these new 12v CPU mobos'. I got a 550w TP as well, and am well happy with it...