X2 3800+

[Duvie]

Originally posted by: AthlonPowers
What is stock voltage for these chips? My Neo2 picks it up as 1.275v

I noticed that with my 4400+ I cant get the 10x multi to work with anything past 250 as well...I think the 10x is borked...

Try using 9x and a HTT of 270+...it worked for me....

MarkFW900 tried and confirmed same thing on his neo 2. first he used same bios and then even used a different one from me....9x should work but will require higher HTT and possibly a memory divider if the ram cannot handle it...

 

[LED]

Originally posted by: AthlonPowers
What is stock voltage for these chips? My Neo2 picks it up as 1.275v

My Cool n Queit which is on and rated the lowest of Mobo's has it auto/stock @ 1.30v's

 

[Duvie]

Mine came up as 1.29 which is about right since this board has undervolted everything about .06v....It set my 1.4v winnie at a default of 1.34v...

 

[blackllotus]

Well I've ordered the parts to my new system, and I splurged and got an X2 3800+ (total cost came out to ~750, which is $150 over my planned budget but oh well) and I would like to attempt a mild overclock. Probably to around 2.2 ghz. Should I be able to do this by just bumping the clock speed? I am a huge overclocking newbie, and don't want to burn out the processor (its pricy) so I am thinking that 2.2 would be a safe overclock. Any suggestions?

 

[Markfw]

yes, do 1.4v and bump as high as it goes with a good HSF. You won't burn it out if you stay under 55c.

 

[AthlonPowers]

OK... so I've managed to drop my voltage a little, and I'm running at 50C load, 30C idle with 26C ambient. Is this OK? Where's the danger zone for voltage on these things? This is with an XP-90, so I'm a little disappointed that it's not that much better than the stock hsf, unless it's just my high ambient (without air conditioning)

This is at 2.5GHz, btw, I haven't tried stock speed in a couple of days

 

[Markfw]

Thats a great OC ! be happy, and those temps are fine.

 

[Pabster]

If you can take a 3800+ and reach 4800+ or better speed you have done very well. Most of them are crapping out around 4400+ speeds. But considering the pricing, what a deal!

 

[Unkno]

i wonder if we could get them to 2.6ghz by just raising a little voltage

 

[CrimsonCutie]

Originally posted by: Pabster
If you can take a 3800+ and reach 4800+ or better speed you have done very well. Most of them are crapping out around 4400+ speeds. But considering the pricing, what a deal!

the only down side to it... speed wise you might have a 4400+ but you are loseing a full MB of cache with the 3800+ verus the 4400+ toledo. Thats the only thing that makes me a lil "iffy" about the 3800+. Its a great chip and i recommend it highly, i just feel i am loseing something with only 2x512 instead of 2x1mb on the L2 (though i know it doesn't make alot of different at the moment.

 

[enwar3]

i was gonna buy one of these and oc it, but i was wondering whether or not the cpu multiplier is locked, and what it would be locked at.

 

[CrimsonCutie]

Correct me if i am wrong guys (i know you will LOL)
the 3800+ is upper locked at x10 but open down

 

[Diogenes2]

Originally posted by: Unkno
i wonder if we could get them to 2.6ghz by just raising a little voltage

My 4200 wouldn't do 2.6 stable with 1.6v

I wouldn't hold out a lot of hope that your average 3800 will do 2.6

 

[Pabster]

Originally posted by: CrimsonCutie
the only down side to it... speed wise you might have a 4400+ but you are loseing a full MB of cache with the 3800+ verus the 4400+ toledo. Thats the only thing that makes me a lil "iffy" about the 3800+. Its a great chip and i recommend it highly, i just feel i am loseing something with only 2x512 instead of 2x1mb on the L2 (though i know it doesn't make alot of different at the moment.

This is true, speaking of 512x2 4400+ versus 1Mx2 4400+. However most tests show the difference relatively small (5-7% on average) although certain applications benefit more than others. That is the trade off for saving roughly $200 over the 4400 Toledo to begin with

 

[mooncancook]

Originally posted by: Diogenes2
My 4200 wouldn't do 2.6 stable with 1.6v

I wouldn't hold out a lot of hope that your average 3800 will do 2.6

got my 4200 stable (so far) at 2.64 (240x11) with startup Voltage @1.45 and Vcore @1.475. Temp is 32-36 idle and 40-45 load. It's weird that when I set startup voltage to 1.475 it freezes when running 3Dmark05.

 

[CrimsonCutie]

Originally posted by: Pabster

Originally posted by: CrimsonCutie
the only down side to it... speed wise you might have a 4400+ but you are loseing a full MB of cache with the 3800+ verus the 4400+ toledo. Thats the only thing that makes me a lil "iffy" about the 3800+. Its a great chip and i recommend it highly, i just feel i am loseing something with only 2x512 instead of 2x1mb on the L2 (though i know it doesn't make alot of different at the moment.

This is true, speaking of 512x2 4400+ versus 1Mx2 4400+. However most tests show the difference relatively small (5-7% on average) although certain applications benefit more than others. That is the trade off for saving roughly $200 over the 4400 Toledo to begin with

I just want to buy a 4800+ for 25 bucks (shipping included) and then i'd be happy LOL... come on AMD price cut (is that such an unreasonable request)

I know the 1mb vs 2mb L2 isn't a major thing right now.. and i should just be happy with a 3800+ and in a year or year and half when winx64 and vista and all that are runninig and more apps can better use large L2 upgrade to a better cpu then.

 

[imported_ank]

I'm having a hard time because reports of overclocking are so different. All the inital reviews were saying the 4200+ was hitting 2.64 at 1.45V with ease and stability. Now, some people are saying the 4400+ overclocks better (common sense suggests that a much larger chip with more wattage would overclock less instead of more). Now, a few people on these boards are suggesting the the 4200+ will barely do 2.5 without more voltage. Damn it. Someone help clarify this for me.

 

[GuniGuGu]

Here's as good thread dedicated to overclocing the x2's on an Aussie website...

First page has a good overview of everyones success.

Me personally, still testing my x2 3800, it seems that to oc it, i need to take the straing off the memory controler, because even though my mem can go higher as tested at lower multi's... when i run it at 10 or 9, i need to use a a bigger divider to get it going..

and I think the guy above may be rite about the 10x multi, because i think i've hit a higher speed at 9x then i could with the 10.. (can't conclusly say for sure yet)

Anywhoo currently testing at 9x298 = 2.68@1.55v (CPU-Z says 1.50~1.52).
2x1GB Corsair TwinX XMS 3200c2 208@2.9v 2,3,2,2

Tested for about 15mins p95 stable and 3hrs wow stable.. Gonna give it a big overnite test now.