AMD 2500 recognized as 3200?

[shafts]

Am I being lead a line of crap or is there a barton 2500 that is unlocked form AMD? Is this true that some of the 2500's are seen as 3200's on 400fsb boards or is a line of bull? I know you can make BIOS adjustments to get this result but is there some rare chips that are just recocgnized this way?

 

[BlueWeasel]

Who exactly is telling you this?

A chip that is unlocked does not mean it is clocked at or will hit 3200+speeds. Granted, 95% of the 2500+'s out there will hit 3200+speeds from what I've read. Most of the earlier Barton 2500+'s (prior to Week 39, give or take a few) came factory unlocked and you could change the CPU mutiplier. So you could OC by changing the muiltiplier, increasing the FSB, or both. The later 2500+'s are locked and can only be overclocked by increasing the FSB.

However, the 3200+ and 2500+ both have the same multiplier (11.0x), and the only differences between the two are the FSB for the stock speeds. The 2500+ runs at 11x166FSB (333DDR) = 1.83ghz and the 3200+ runs at 11x200 (400DDR) = 2.2ghz. So if you can get a 2500+ that will run at 200 FSB and your board can handle it, then it's identical to a 3200+ running at stock speeds.

 

[shafts]

I am sorry. I think I needed to say that I was told it would be recognized as a 3200 without O/C. From what I had read the board would just see it as a 3200. I understand that you can O/C it but this is supposed to be without doing anything but plugging it in so to speak.

 

[shafts]

Oops damn I am a noob. Somehow this it got in twice.

 

[badaphooko]

am sorry. I think I needed to say that I was told it would be recognized as a 3200 without O/C. From what I had read the board would just see it as a 3200

I DONT think ANY mb will recognize it as a 3200 without atleast raising the fbs to 200 mgz. thats all you really got to do. do you know how to do it?

 

[shafts]

Yeah I know how to do it. Just that I am seeing it mentioned as Autodetect at 3200. I was like I don't think so ... that's why I came here. I understand that they have started locking the 2500's? Maybe this is a older chip that is still unlocked.

Thanks for your help though.

 

[MDE]

On the newer chips, only the multiplier is locked. The 'proper' way to overclock a 2500+ to 3200+ is to raise the FSB up to 200, and then it's virtually identical to a 3200+ except the number stamped on the black sticker on the chip. If you change set the chip to 10.5x200 then it'll be seen as a 3000+, and so on. The way the motherboard recognizes the CPU's name is by the multiplier and bus speeds, so there's no way for it to be recognized as a 3200+ unless you overclock it.

 

[Jadow]

My Barton 2500 running at 11 X 200 registers as an XP 3200 on start up.

 

[slaves123]

if some processor if "autodetected" as a 3200+ without overclocking, it's beacuse it IS a 3200+, no other way

 

[aka1nas]

Unless for some reason the board already had the FSB set to 200Mhz instead of 166Mhz or autodetect.

 

[Fides]

I tried doing the same thing but my computer wouldn't start when I overclocked it. What should the voltage be at?

 

[Fern]

It could be that whoever he is talking doen't see raising the FSB as "overclocking". Because it's so simple some don't consider that to be "OCing" in the traditional sense.

For example, if you have mobo set to 200 FSB, yeah, you could drop in a an unmodified Barton and will ( if doesn't fail to post) automatically register as a 3200+. No wire tricks etc needed.

 

[Fern]

Fides, I think stock voltage for the Barton 1.65, try raising in as small as possible increaments. 1.7 or 1.75 is what some seem to need. Some have reported that they needed to boost voltage to get past a barrier at say FSB 185, but then at 200 they can go back down to 1.65 and be stable. You'll need to experiement there a bit. What ram you runnin in that thing? You got pc 3200 or better?

 

[MLJGTI]

I recently bought a locked 2500 and raised the FSB to 182 - Windows recognises the processor as a 3200 @2.0Mhz

 

[Fides]

my ram is only 333Mhz.. what effect does the ram have on the overclocking capabilities?

 

[Megatomic]

Softmenu in my NF7-S R2 board's BIOS thinks my 2500+ is either a 2500+ or a 3200+. I think it's because they have the same default CPU multiplier (11x). Fortunately, my mobo, CPU, and RAM are all stable at 3200+ so I just select 3200+ and run with everything else at stock settings. This has been the easiest OC in my computing life.

 

[myocardia]

Originally posted by: Fides
my ram is only 333Mhz.. what effect does the ram have on the overclocking capabilities?

The effect it will have is you not being able to overclock much, unless you raise your vdimm (ram voltage) to at least 2.8v or, more than likely, 3.0v. Raising your vcore (processor voltage) doesn't give you faster ram, man. If you already have the proc. and the motherboard, you should now invest in some ram that's rated at PC3200 (200mhz, or 400mhz DDR), unless your ram will hit 200 by raising the vdimm.