XP3000 Barton OEM

[CYLONN]

Word to the wise,

If you're considering upgrading to this proccessor, DON'T, unless you can find a "retail box" version.  I bought an OEM XP3000 and couldn't get it to run at even the minimum rated specs for this cpu.
I could only get 1.9GHz and 194MHz on the fsb, eventhough it's rated at 2.1 and 400 fsb. Even increasing the vcore didn't work.
AMD will not gaurantee any OEM proccessor to work at it's advertised specifications.

Reinstalled my Barton 2500 and currently have it running at 2.1GHz and 200MHz sys.clock.(400 DDR), w/o any problems or vcore increase. Stable as can be and only reaches 44 C under full load.
Save yourself some  money and overclock the hell out of your Barton 2500!! It can take it.

[flakbait]

The sole diff between OEM and retail is a retail CPU comes with the HS and fan. Otherwise the two are identical. I'd say you just got a bad processor; return it for another one and the replacement should work fine.



-----------------------
Flakbait [Delta6]
Delta Six's Flight School

[Skuzzy]

Also note that many are unlocked and will not power up with the right multiplier.  I believe the multiplier for the 3000+ is 10.5 (don't quote me on that multiplier, as I am doing this from memory).  Make sure it is set right.

The first AMD processor I bought was unlocked and it took me a while to figure out why it was acting so odd.

[CYLONN]

These possibilities were considered and after consulting AMD tech support, they had no idea as to why it wouldn't operate properly.
The multiplier is set ot 10.5 and the vcore is at 1.650,  which are the proper specs for that chip. I will have to investigate the possibility of it being locked, but I don't believe it is.

[Skuzzy]

So I understand it.  You had the multiplier set correctly, which would have yeilded a 200Mhz FSB and the CPU would not run?  Or run badly (effectively not running).  Is that right?

Then I would say it is a bad CPU.  Get a replacement.

By the way, I doubt AMD would actually say they will not gaurantee the part will not run at the rated speed.  That would open them up for all kinds of legal troubles.  False advertising, misrepresentation and so on.

[boxboy28]

not to mention if the MOBO can run at 200 FSB and the memory can as well.!

BTW most AMD XP BARTONS core , the stepping multiplier is locked but you can OC the FSB to 200-400 (ie a XP2500 333FSB but will run at 200x2 FSB)

[minus]

at my knowledge  XP 3000 Barton run at 166 bus, the XP 3200 haz 200  bus

there is some special serial numbers of Xp barton that handle realy harsh handling and high speed, or another solution  get a vapochil

[ALF]

Arn't there 2 flavors of AMD XP3000+  theres a 333 and a 400 fsb version.

[Kev367th]

I used to have an ASUS A7N8X Deluxe (Rev 2.0) and XP3000 (400fsb) worked fine.
Just had to manually set the memory timings on my Corsair DDR400.
Check http://www.nforcershq.com/forum/viewforum.php?f=13&sid=540d2dc872f9c3917bd8b17cbe1fb2d9
good forum, great tips.

[CYLONN]

Hey Kev,

Thanks for the reply. You wouldn't happen to remember what those memory timings were that you used?

My mem. settings:

Active Precharge       6
RAS to CAS Delay      3
RAS Precharge          2
CAS Latency              2T

I exchanged the chip for a replacement and will start another round of testing when it arrives.  AMD tech support suggested
memory timings as did Skuzzy.  The Corsair ram is supposedly tested on this particular mb, but I guess you can't believe everything you read.

[CYLONN]

Yes ALF, there are two different XP3000 cpu's.
The serial # on mine ends in 4E, which denotes 400fsb.

[Kev367th]

With 2 sticks Corsair DDR400, form the nforcehq website -

Testing parameters for XMS3200 CAS 2:
DRAM Clock: 200 MHz
DRAM Timing (overrides SPD values): Manual
System Performance: Normal
Bank cycle time (or tRAS): 6
Bank Interleave: 4
RAS Precharge (tRP): 3
RAS-to-CAS Delay (tRCD): 3
CAS Latency: 2
Command Rate: 1T
Memory Voltage: motherboard default*

[bloom25]

If you use a command rate of 1T you must be sure you have each stick of memory on a seperate memory channel.  (If you have a dual channel nForce 2 Ultra Athlon XP based system you can do this.  Socket 939 Athlon 64 systems can do the same.)  If both sticks are on the same memory channel you will almost certainly need to set the command rate to 2T.

RAS precharge will need to be at least 3.  (The only memory modules I know of that could handle a RAS precharge setting of 2 were based on the Winbond BH5 DDR chips.  The BH5 chips are now discontinued.)

[Kev367th]

As he is using an ASUS A7N8X board, I am assuming he is using dual channel memory options.
The timings I posted are the ones from the website, which happened to get my 'old' system up and running at 400fsb.
Same timings are actaully recommended by Corsair also.