New Tbred w/ DLT3C?

[juliendogg]

goin on with this thread...
newegg shows an xp1800 thoroughbred.. axda1800dlt3c... same-ish??? is there anything in the codes specific to default votage? so we could tell the proc is default 1.5v???

 

[juliendogg]

this is drivin me batty, axda1800dlt3c, this would indicate a default voltage of 1.5v, the L. now this could very well be a tbred-a yes? as previously we defined the difference between the a's and b's by default vcore, dlt3c for 1.5v (tb-a), dut3c for 1.6v (tb-b)
from what i can find around some other forums it looks like the newer stepping t-bred b's have gone back to 1.5v vcore, at least the 1700+ possibly the 1800+ as well... grrrrrr, how to tell what you're getting???

 

[deathstar13]

its had to tell really but id guess the newegg 1800 is an A.
and im pretty sure the A's are 1.5v defaults.been a while and im forgeting alot of facts.

best bet unfortunatly is excaliberpc.com im a newegg person myself but these guys have a rather good rep so far.

 

[juliendogg]

you're right about the a's having a default voltage of 1.5. the b's were previously 1.6. but these new 1700's from excalibur seem to be b's with a voltage of 1.5. so this has just gotten a bit more confusing, :S.

 

[deathstar13]

not really i dont think.amd has had lower voltage chips around before.why? i dunno i think some had to do with mobile chips.
but they do lower the voltages if they can to save heat output.
being that the 1700 chips are the lowest amd is producing they might be xp2700 chips just rebinned as 1700's as they need 1700's on the market.
also i dont think amd has much control over making a differance in a 1700 or a 2700.what turns out is what they label and if it is better than rated they dont want to purposly make a slow running batch when it costs the same.

 

[Pinky]

I updated the FAQ to reflect these newest of oddities...

 

[dropadrop]

Oh boy... Going to get processors for my dually this week. I think I'll wait untill I can get two of those!

 

[deathstar13]

i just bought the whole tray at excaliber! last 24 they had btw
pls send $120 MO each to me deathstar13 the oc chip monger.






anyone crying yet? man that would just be wrong to do.but boy would i have a large group of friends huh? well enimies most likley.but i didnt its just a joke.

 

[Pinky]

anyone crying yet? man that would just be wrong to do.but boy would i have a large group of friends huh? well enimies most likley.but i didnt its just a joke.

Yeah, you're one chip-pimping daddy.

 

[Deadphishy]

oh man, i just put one of those chips in my grandma's computer. it was a 307 JIUHB. it ran default voltige at 1.6 you think i should try and get my hands on it and see what it can do. man i know i should have tested it befor i built her computer. if it can go faster then my 2100 then i'll trade her. she won't care shell have a faster computer.

 

[jonspd]

anyone crying yet?

 

[JCviggen]

I got a 0308 JIUHB 'L' today.... sadly its SPMW which is a bit less good than UPMW (or that other code)

still, for 59 euro I couldnt leave it

I can now say for sure that the 2600 MHz one was true. And I can explain why they're running such low voltage.... these things HATE voltage
Anything past 1.80V and the overclock crumbled away... almost like clocking a C1 P4.

I set the voltage to 1.60 for a start (to compare with what my 2100+ can do at "default") and it went all the way to 2350 MHz !
My 2100+ which reached 3 GHz can only manage about 2260 at 1.60V. However, these chips totally stop scaling at 1.8 volts

Nevertheless I was able to reach 2470 MHz @ 1.80V without much trouble, and with a fairly weak air cooler. I'm sure 2.5 GHz would be a fact with better cooling, since the chips also seem to hate heat. I'll give it a run in the prom tomorrow. If it reaches 2.7, I would say its worth the 59 euro

screenshots will be later

 

[deathstar13]

good info and a good point on the voltages.
yeh thats something that was untested until now was how they do at higher vcores? and sadly pitifull.
well not really but scaling wise its pitifull.
in a prommie id say it has the best chance as h20 even refer h20 wont gain to much.can run higher voltages and such but doesnt allow lower voltages to carry you to much farther than air.

 

[Twister]

I ran his chip code through the IDENTIFIER program. This 1700+ is downgraded from an XP2800+ !! My 2100 is downgraded from XP2500+. These are the ones to get now

 

[JCviggen]

1.65V...

according to that site it is indeed a downgraded 2800+ , and about my 2100+ it says its from a 2700+... but I can assure you, my 2100+ goes way better than this 1700+ ... this 1700+ does very good at low voltages but craps out way too early.

I can make about 2.48 GHz at 1.80V, but then things get too hot and it starts to act up

 

[Pinky]

Yields must have been good for the 2800+ since the rejects OC so poorly.

 

[Emericana]

i dont buy the whole "reject" cpu thing whether it was a 2800+ reject etc i just dont buy it.....

i just think these cpus own

just wait till some of the later weeks are released .... it seems these can do 2.5ghz on average w/ 1.8v maybe we will see 2.6ghz or even 2.7ghz once later weeks come out

 

[jonspd]

Well I can say we will have to see what happens come Huum Friday!

 

[Shade00]

Gonna be investing in one of these soon... I need a 1700+ that'll do 2200 easily.

 

[OC Detective]

i dont buy the whole "reject" cpu thing whether it was a 2800+ reject etc i just dont buy it.....

i just think these cpus own

just wait till some of the later weeks are released .... it seems these can do 2.5ghz on average w/ 1.8v maybe we will see 2.6ghz or even 2.7ghz once later weeks come out

Precisely - anyway how could a piece of software have inside information into AMD's manufacturing to know that a certain chip was downgraded! Somebody yesterday had their chip downgraded from an XP2500 - pretty clever considering it was a Tbred.....................