Has your 90nm s939 caught the cold bug?

[PoL]

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

mmm... same step and date as my 3700+. Wanted to try it under dice, but now that I read that... damn... Well, will try it anyway

[Eldonko]

mmm... same step and date as my 3700+. Wanted to try it under dice, but now that I read that... damn... Well, will try it anyway

/nod I could get better speeds from it under phase, temps just above cold bug. Maybe yours will have no cold bug though, never know until you try.

[Fhqwhgads6680]

yeah, give it a shot, and seeing results from the same week, stepping or batch num. will help us figure out if the bug has any patterns that we can follow. Great work guys! thanks!

[PoL]

All right, I'll give it a try within a month more or less.
Wanna see what he can do. Couldn't go over 3410Mhz with my vapo, so wanted to see 3.5G at least...

[Fhqwhgads6680]

So everyone says the CAB2E's Cold bugs are bad, but how bad and is this consistent enough to generalize? I guess once I get my single stage up and running I'll see what mine does...

[Blue078]

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.

Well then can {e.g. stephen} post a sticky with the list ?

[Fhqwhgads6680]

Yeah that would be really nice, i am attempting to get enough info together on the bug so that I can post some general rules and/or expectations based on stepping (if it is stepping based) so that people will know, I just need to do some more research so that I know the information is accurate.

[stone_cold_Jimi]

From another thread about FX-57s, Dumo says that his info most likely applies to all San Diego cores:

http://www.xtremesystems.org/forums/...0&postcount=42

Nothing newer than week 0533 though.

[Fhqwhgads6680]

thanks that helps I'll add that in as well. MORE RESULTS WELOME!!!! Thanks to the guys that have posted so far, its been really helpful.

[Rayman]

i plan 2 go phase any 0543's?

[Dumo]

You have to narrow the temp.range on cpu core.....single stage around -20C to -15C or probly -50C evaporator temp.
Cascade will yield -50 to -68 cpu core temp.
Dry ice temp. range from -30 to -45C.
Most San Diegos will run ok with single stage/dry ice @ high htt, but it will stuck probly around 240 htt with cascade.
Venus/opteron still a mystery with cascade, but for my 150 cabne0528 theres no problem with cld bug @-94C evap. or -50/60ish cpu core temp. Probly the memory controller was set differently...
Ricky's tweak or ACPI Multiprocessor tweak will help tame the cold bug in most SD/Venus, but it will put a tremendous heat load to your cooling. Especially with high vcore.

[Kesnel]

CPU Name: Athlon 64 3700+
Core: San Diego
Stepping: CABGE
Week: 0515 SPMW
Bugged?: NO
Symptoms: N/A
Die temp at which bug occurs: N/A
Evap temp: -60
Lowest Tested fully working and stable temp: -34

CPU Name: Opteron 146
Core: Venus
Stepping: CABNE
Week: 0530 APMW
Bugged?: NO
Symptoms: N/A
Die temp at which bug occurs: N/A
Evap temp: -60
Lowest Tested fully working and stable temp: -30

CPU Name: Opteron 146
Core: Venus
Stepping: CABYE
Week: 0543 FPMW
Bugged?: NO
Symptoms: N/A
Die temp at which bug occurs: N/A
Evap temp: -60
Lowest Tested fully working and stable temp: -29

CPU Name: Opteron 144
Core: Venus
Stepping: CAB2E
Week: 0540 FPMW
Bugged?: YES
Symptoms: No boot above 230 HTT on any volts. (N.B. I did not try very hard to get a boot on this chip is it was only a mediocre clocker on air. Therefore I've not found at what temp the bug occurs unfortuntely)
Die temp at which bug occurs: N/A
Evap temp: -60
Lowest Tested fully working and stable temp: N/A

[Rayman]

CPU Name: Athlon 64 3700+
Core: San Diego
Stepping: CABGE
Week: 0515 SPMW
Bugged?: NO
Symptoms: N/A
Die temp at which bug occurs: N/A
Evap temp: -60
Lowest Tested fully working and stable temp: -34

CPU Name: Opteron 146
Core: Venus
Stepping: CABNE
Week: 0530 APMW
Bugged?: NO
Symptoms: N/A
Die temp at which bug occurs: N/A
Evap temp: -60
Lowest Tested fully working and stable temp: -30

CPU Name: Opteron 146
Core: Venus
Stepping: CABYE
Week: 0543 FPMW
Bugged?: NO
Symptoms: N/A
Die temp at which bug occurs: N/A
Evap temp: -60
Lowest Tested fully working and stable temp: -29

CPU Name: Opteron 144
Core: Venus
Stepping: CAB2E
Week: 0540 FPMW
Bugged?: YES
Symptoms: No boot above 230 HTT on any volts. (N.B. I did not try very hard to get a boot on this chip is it was only a mediocre clocker on air. Therefore I've not found at what temp the bug occurs unfortuntely)
Die temp at which bug occurs: N/A
Evap temp: -60
Lowest Tested fully working and stable temp: N/A

do u kno if all 0543's are the same?

[Kesnel]

do u kno if all 0543's are the same?

I couldn't really say unfortunately. I've only owned the one 0543 chip and I can't recall seeing anything else about how they handle the cold.

Here's hoping that yours is a good one though.

[Rayman]

thanx just gotta figure out how to fit phase on my sli setup lol

[Fhqwhgads6680]

I've seen a few -0543's on here under some type of phase, but finding info on this stuff is like trying to find a file at the IRS....

[da-key]

CPU Name: Opteron 148
Core: Venus
Stepping: CAB2E
Week: 0546 BPMW
Batch#:50141
Bugged?: yes
Symptoms: No post
Die temp at which bug occurs: -35 c
Evap temp (Dry Ice): -45 c
Lowest Tested fully working and stable temp: -4C

[Eldonko]

CPU Name: Opteron 148
Core: Venus
Stepping: CAB2E
Week: 0546 PPMW
Bugged?: yes
Symptoms: No boot
Die temp at which bug occurs: -35 c
Evap temp: -45 c
Lowest Tested fully working and stable temp: Not sure, it will not boot at any setting under single stage. No way of telling what temp the cold bug kicks in.

[Dogimann]

Hi Guys...

The KAB3E and KAB2E are Bugged ?!
Are there differences from the E4 to the E6 Stepping?

Search urgently 3700+ without the Cold nose, but is probably impossible......??!

[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!

OK, just tried Dry Ice on this babe, and...

CPU Name: Athlon 64 3700+
Core: San Diego
Stepping: CABGE
Week: 0515 SPMW
Bugged?: Yes
Symptoms: Won't go further than 270Mhz
Die temp at which bug occurs: -34º
Evap temp (DICE): -72° (Vapochill)
Lowest Tested fully working and stable temp: -29°

[zzurf]

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..

How high can you go on divider 9?

[ManagHead]

Hi Guys...

The KAB3E and KAB2E are Bugged ?!
Are there differences from the E4 to the E6 Stepping?

Search urgently 3700+ without the Cold nose, but is probably impossible......??!

I would like an answer on that question too

I think both the KAB2E, and the KAB3E are hardly bugged

[Dogimann]

Hi Guys

Ar the Opteron 165 CCB1E 0605XPMW Buged?!

THX

[Vapor]

VERY bugged unfortunately.

So much so that even some water setups in airconditioned rooms are bugging them.

[Pandamonia]

CCB2E 0620BPMW

FX60

any info at all on this Steppings cold bug and OC ability wud help me greatly

many thanks