Has your 90nm s939 caught the cold bug?

[Fhqwhgads6680]

Hello, I am starting this thread in an attempt to compile information on the 90nm s939 AMD cold bug issues. Any and all 90nm s939 amd cpu's are valid.Please List the information in the following format(this is just an example not real information):

CPU Name: Opteron 148
Core: Venus
Stepping: CAB2E
Week: 0546 BPMW
Batch#:500043
Bugged?: yes
Symptoms: No post
Die temp at which bug occurs: -30 c
Evap temp (if on Phase): -45 c
Lowest Tested fully working and stable temp: -5 c

Please feel free to give any additonal info on your situation and or experience with the bug! thanks!

[5days]

I like the idea of this thread.

Nice work.

[biohead]

cold bug depends on stepping and batch (how the memorycontroller is tweaked). CAB2E does good on air but sucks subzero. Some uberpr0's (e.g. stephen) know which are bugged and which aren't. Filling in this information doesn't help a tad.

[mongoled]

Filling in this information doesn't help a tad

Hey, Fhqwhgads6680, has decided to do this thing with his own time and efforts, why this much negativety? Not really a nice thing to say

[Fhqwhgads6680]

I'm just trying to get as much information as I can about the AMD cold bug compiled into one thread rather than having it all over the place. I have had people say their's bugs out at -20c while some fx's don't bug out untill -90c, some people say their's won't post, some can't run high HTT....as you can see there is ALOT of variation on the different symptoms as well as the temps they occur at.I am just trying to put all of this in one place so that if I am buying a current cpu I can decrease the chances of getting a bugged chip or aleast have some idea of what to expect.

[Eldonko]

CPU Name: Opteron 150
Core: Venus
Stepping: CABGE
Week: 0534 SPMW
Bugged?: No
Symptoms: N/a
Die temp at which bug occurs: N/a
Evap temp (if on Phase): -45 c
Lowest Tested fully working and stable temp: -45 c

Have a few more I can add later. If you can maintain some sort of summary this will be a useful thread.

[Fhqwhgads6680]

hey thanks, yeah any and all, im just trying to do consolidate all this so that people will know when buying a cpu. I already know that:

NO 130nm are affected (from what I have heard, I haven't personally tested this)
and that ALL winnies are afftected (again, not personally tested)

If someone knows a general rule like the ones above that will help too so we can group the cpu's by some thing in common that either do or don't have it, or are affected at given temps.

Thanks!

[Dumo]

Try to use ACPI Multiprocessor....it will help tame some of the bug in San Diego core

[Fhqwhgads6680]

I have heard of that, what is it exactly?

[Willis]

wrong answer coldbug does not depend on stepping

i had two
3000+ venice 0512 DPBW
batch 500026 and 500036

026-->coldbug at 3ghz -30
036-->no coldbug at dryice

[Fhqwhgads6680]

so is it purely batch # dependant?

[Willis]

so is it purely batch # dependant?

nope it's just the luck of draw when it comes to memorycontroller

[G H Z]

CPU Name: X2 3800
Core: Manchester
Stepping: CCBWE
Week: 0529 SPMW
Bugged?: yes
Symptoms: No boot below -25° evap
Die temp at which bug occurs: approx. -15°
Evap temp (if on Phase): -63°
Lowest Tested fully working and stable temp: -22° once in Windows, no reduced HTT 1:1. Chip does 2968mhz on air @ 1.6v, max under phase 3.24Ghz not fully tested for stability.

[PoL]

Three CPUs

CPU Name: Athlon 64 3500+
Core: Winchester
Stepping: CCBBID
Week: 0501 FPMW
Bugged?: No
Symptoms: NONE
Die temp at which bug occurs: ---
Evap temp (container): -69° (Dri Ice)
Lowest Tested fully working and stable temp: -41°

Did 3200Mhz, and it was stable up to 3060Mhz more or less.
Could keep my GSKILL FR @ 315Mhz 1:1 2.5-3-4-6, and my VX4000 @ 260Mhz 1.5-2-2-0

---------------------------------------------------------------

CPU Name: Athlon 64 3700+
Core: San Diego
Stepping: CABGE
Week: 0515 SPMW
Bugged?: No
Symptoms: NONE
Die temp at which bug occurs: ---
Evap temp (phase): -52° (Vapochill)
Lowest Tested fully working and stable temp: -29°

Did 3410Mhz, and it was stable up to 3150Mhz.
Could keep my GSKILL FR @ 310Mhz 1:1 2.5-3-4-6, and my VX4000 @ 260Mhz 1.5-2-2-0

---------------------------------------------------------------

CPU Name: Athlon 64 X2 3800+
Core: Manchester (E6)
Stepping: CCBWE
Week: 0525 XPMW
Bugged?: Yes
Symptoms: At less than -25º can't run more that 295Mhz 1:1 (it does 295Mhz even at -40º)
Die temp at which bug occurs: -25º
Evap temp (container): -69° (Dri Ice)
Lowest Tested fully working and stable temp: -39°

Did 3500Mhz, and it is stable up to 3350Mhz more or less.
Could keep my GSKILL FR @ 295Mhz 1:1 2.5-3-4-6, and my VX4000 @ 258Mhz 1.5-2-2-0



See ya!

[Athens[2004]]

CPU Name: 3.0+
Core: Venice
Stepping: [edit soon]
Week: 0522 [edit soon]
Bugged?: No

At -30 from bios [dfi nf4 ultra d ] than can reach with my single [aspera 3/8 r507 & few r410 ] Works fine . passed 3d marks , spi1 - 8 -16 - 32 .

Max HTT with my single = 370++ [X9]

[Eldonko]

CPU Name: Athlon 64 3700+
Core: San Diego
Stepping: CABGE
Week: 0515 SPMW
Bugged?: Yes
Symptoms: No boot above 2700Mhz when under -60C. Insta freeze when upping the Mhz in windows unless the CPU was under load.
Die temp at which bug occurs: about -40C
Evap temp (dice): -70 to -65
Lowest Tested fully working and stable temp: -54C

[MrRevhead]

Just a suggestion, you may want to consider changing the topic name to something along the lines of Cold Bug CPU Stepping Database which may attract more people to read/contribute. At first glance i assume people just think theres going to be a series of "yes" & "no" answers within the thread.

None the less, excellent idea

[Fhqwhgads6680]

Ok guys I really appreciate the results so far! Once we start getting quite a few I'll start compiling some of the info and see if there may be some generalities or rules we may be able to go by. I really appreciate the response! Any suggestions/comments welcome.

[Dumo]

Opteron 150 CABNE0528GPMW with added heat load and -94.7C evap. temp or -50ish cpu core temp

No cold bug so far....@ htt250..

[Fhqwhgads6680]

Nice cpu btw, I am really hoping mine doesn't have the bug, but I hear most CAB2E's do...and this thing is GREAT on water.....arg... Thanks again for results guys. Keep em comin!

hey I wanna change the thread title that shows up in the thread listings but can't figure out where to do it?!

[Dumo]

Nice cpu btw, I am really hoping mine doesn't have the bug, but I hear most CAB2E's do...and this thing is GREAT on water.....arg... Thanks again for results guys. Keep em comin!

hey I wanna change the thread title that shows up in the thread listings but can't figure out where to do it?!

More info here ...http://www.xtremesystems.org/forums/...t=73754&page=4

[G H Z]

Opteron 150 CABNE0528GPMW with added heat load and -94.7C evap. temp or -50ish cpu core temp

No cold bug so far....@ htt250..

Dumo what are you doing, my 148 does that on air and you have no bug and -94 Evap temps! Try 300 X 12

[Dumo]

Dumo what are you doing, my 148 does that on air and you have no bug and -94 Evap temps! Try 300 X 12

I just try to find the highest working htt @ lowest temp....Better than most 57 @-94C

Here.....on its way to 500 cpumark and 3.8Ghz Wonder hows Opteron 154 will scale..

[afireinside]

CABNE 0530 APMW Opteron 146 cold bugs hard under -15c windows on dice. Mem dividers don't help. Needed to crank the vcore to 2v

[G H Z]

I just try to find the highest working htt @ lowest temp....Better than most 57 @-94C

Here.....on its way to 500 cpumark and 3.8Ghz Wonder hows Opteron 154 will scale.

Holy,

That has to be an Opteron record