Just bought an XP1700 in FS/FT... installed it and it's an XP2000?????

[Jeff7181]

The label said it was an XP1700... and the seller I bought it from is a trustworthy guy, no reason to believe he'd swap them or anything like that. But this has me thoroughly confused. It's a week 50, 2002 IIRC. According to the BIOS it's running at 1667 MHz on a 133 Mhz FSB. CPU-Z 1.29 tells me the same thing. But this is an old Via KT266 chipset I'm using... I didn't think it could adjust the multiplier even if I had an unlocked CPU. Any ideas what's going on?

*EDIT* The BIOS is set to use the default multiplier, and it's using 12.5.

 

[CheesePoofs]

The XP1700 uses an 11 multy, so could it be that your board just can't use that multy for some reason? Possibly you have some jumper set so that it won't use below and 12.5 multy? It seems very unlikely, but its all that I could think of.

 

[Brian23]

Are you running it at 166FSB or 133FSB? Make sure it's running at 133FSB to run stock. If it's running 166, I would leave it there because that's a good overclock. No reason to complain about getting a faster chip than you bought!

EDIT: After re-reading your post, it appears you're running 133FSB. An Athlon XP1700+ is supposed to run at 11x 133MHz = 1466MHz. So it seams that you're running at a higher multiplier. I bet the CPU has a bridge mod done to it to raise the multiplier.

 

[AMDgood IntelBAD]

a multiplier modification is usually more stable than an fsb change anyway so do a happy dance.

 

[Jeff7181]

Originally posted by: Brian23
Are you running it at 166FSB or 133FSB? Make sure it's running at 133FSB to run stock. If it's running 166, I would leave it there because that's a good overclock. No reason to complain about getting a faster chip than you bought!

EDIT: After re-reading your post, it appears you're running 133FSB. An Athlon XP1700+ is supposed to run at 11x 133MHz = 1466MHz. So it seams that you're running at a higher multiplier. I bet the CPU has a bridge mod done to it to raise the multiplier.

Nope, I visually inspected it and it's unmodified. The previous owner said it always booted up as an XP1700 in his A7N8X-X. Another strange thing... the board detects the voltage at 1.500 volts... it under volts to 1.45 volts... and I just ran Prime 95 overnight for 7+ hours with no errors at 1.66 GHz.

Like I said, I have no reason to believe the guy I bought it from would swap chips, or lie about a mod he tried on it or anything like that. If I bought an XP2000 and it was being detected as an XP1700, that would be a problem... but this is fine... it's great actually, lol. I'm not complaining, just confused and wondering what could cause this. Even AMD's CPU Indentification tools call it an XP2000. I may just have to take it apart again and inspect the bridges and find out what those indicate the default should be.

 

[Lonyo]

You could take it apart and check the markings on the CPU.

 

[Jeff7181]

Originally posted by: Lonyo
You could take it apart and check the markings on the CPU.

I looked at the markings on the CPU before I installed it and I SWEAR it says AXP1700DLT3C. The guy who sold it to me sold it as an XP1700, and it has always been an XP1700 in his computer. I'm puzzled and curious how this could happen, lol. Not only is it running faster than it should be, it's running on about 10% less voltage than it should be, lol.

 

[AMDgood IntelBAD]

i say up the voltage and really get that thing movin!!!!!

 

[Jeff7181]

Originally posted by: AMDgood IntelBAD
i say up the voltage and really get that thing movin!!!!!

No PCI/AGP locks. PC2100 memory. Just a spare computer used for web browsing and e-mail.

 

[Diogenes2]

Originally posted by: AMDgood IntelBAD
a multiplier modification is usually more stable than an fsb change anyway so do a happy dance.

Could you explain why this would be true?

 

[MegaWorks]

You have the T-Bred B DLT3C man these babies fight, mine is at 2.3 Ghz (1.775v) = XP 3200.

 

[Jeff7181]

Originally posted by: Diogenes2

Originally posted by: AMDgood IntelBAD
a multiplier modification is usually more stable than an fsb change anyway so do a happy dance.

Could you explain why this would be true?

Changing the multiplier doesn't effect the stability of RAM or the motherboard chipset. Increasing the FSB overclocks the FSB, the RAM, and the processor. More things to go wrong.

 

[Zap]

I don't think those chips needed bridge modding to become unlocked. What probably happened is that your motherboard was already manually set to 12.5X multiplier in BIOS and retained it, but you said you don't think the board has those settings? A mystery!

 

[sangyup81]

are you sure you are running on auto? your board might have jumpers. my kt266 did too. and do a prime95 test because you don't want an unstable computer!

 

[Jeff7181]

Definately auto... and I reset the CMOS prior to installing this CPU. I was wrong though, I can select multipliers from 5 or 6 to 12.5... but it's set on auto... and still defaulting to 12.5. I let it run Prime 95 overnight for 7+ hours and it was still runnin fine when I got up this morning. Temp was 44 degrees C as read by MBM from the motherboard sensor... so the core might be 10C warmer, but still, temp is fine. Seems stable enough.

 

[Leper Messiah]

cool. mebbe it was mis binned or something.

 

[Jeff7181]

Originally posted by: L3p3rM355i4h
cool. mebbe it was mis binned or something.

Seems like it, but as I said, the previous owner said it was always detected as an XP1700 when he used it.

 

[keeleysam]

w00t.

 

[Elcs]

My 1700+ DLT3C is sitting at 2.2ghz, 1.70v.

Weirdness with the multiplier. Id take it out, take some good quality pics and see whats up with it.

 

[Gerbil333]

Originally posted by: Jeff7181
The label said it was an XP1700... and the seller I bought it from is a trustworthy guy, no reason to believe he'd swap them or anything like that.

LOL, now why would I even want to do that?

You could take it apart and check the markings on the CPU.

Here are the markings: Image or -->

AXDA1700DLT3C 9820407261913
AIRGA0250TPAW

I bought it used and it always booted up as a 1700+ for me in an Asus A7N8X-X.

 

[Zap]

Originally posted by: Jeff7181
But this is an old Via KT266 chipset I'm using...

Maybe this is the problem. KT266 is pretty old (dates back to before Palamino) and perhaps it needs a BIOS update to know the proper settings for the new CPU.

 

[RichUK]

this is weird .. but cool

 

[MobiusPizza]

why are you complaining when the CPU seems "upgraded"?

 

[Jeff7181]

Originally posted by: AnnihilatorX
why are you complaining when the CPU seems "upgraded"?

As I said before, I'm not complaining. It's not even an issue... I'm just curious how this could happen.

Thanks for the picture, Gerbil333. Wasn't accusing you of doing anything like that. I've never heard of a chip being detected at a speed higher than it's default. I know some are detected lower because the FSB defaults to 100 Mhz instead of 133, but that's obviously not the case here.