Phenom II + LN2 troubles. [Archive]

[XC] gomeler

02-27-2009, 06:43 PM

I'm using a Gigabyte DS4H and a Phenom II, 0850 something. It always locks up around -140 Celsius at idle in Windows. Tried 20x200 and 25x200 with 1.65 to 1.75v and I can pulldown from -100C to -140C and it locks up. Tried HT-lin at .8GHz to 2.6GHz and it doesn't change anything. Memory controller from 1800Mhz to 3GHz doesn't do anything either.

Anyone have any suggestions? I am super pissed, have 180L of LN2 and a chip that doesn't want to fully utilize it :down:

G0ldBr1ck

02-27-2009, 06:53 PM

That sucks, sounds like you managed to find a rare cold bugged PHII.

Im only 2 hours from you and have 4 PhII's and a AM3 ES :D (hint hint). :p:

chew*

02-27-2009, 06:54 PM

gomeler what I'm assuming temps via probe in pot?

Are you using aod? I have issues with it especially cold.....I preety much specialize in this board.

Its a good Idea to run +.3SB and +.075 NB volts when pushing that board hard....give me a buzz I'll help you out you got PM.

Using d9's gomeler? sure those didnt bug?

[XC] gomeler

02-27-2009, 09:32 PM

Will slam some volts tomorrow and give you a buzz. More results tomorrow.

denice25

02-27-2009, 09:36 PM

I think it is not compatible to others.

chew*

02-28-2009, 06:24 AM

I think it is not compatible to others.

?

Used all kind of chips and various methods of cooling, no compatability issues ;) just poor memory performance....

Gom when you call I will tell you how to get 300 fsb bootable as well, theres a bit of a trick to it, over 300 no worka.

[XC] gomeler

02-28-2009, 08:28 AM

I'm setting up the system again. I'll give you a buzz in an hour or so. I will flash to F3O also. I'm really displeased with AM2+ so far, on air it was so-so, but on LN2 it's more finicky than Core i7/Core 2. Maybe I have a bum chip.

[XC] gomeler

02-28-2009, 10:25 AM

Testing at -110C. So far I've found a few limits. My chip/board hard crashes at 257HT but 256HT is solid. Won't post at 260, 270, 280, or 290, so I figure there isn't an HT hole. The IMC with +.350v craps out around 3440MHz at -110C, CPU is good through 3D06 at 4900MHz with 1.64v. Now bumping up to -130C and 1.74v to see if I can break 5GHz. Definitely feeling out of my element with this setup, it doesn't respond like I expect.

soundood

02-28-2009, 10:33 AM

have you tried it out of the case with 1 gig or ram? :cool:

only joking matey :D

this sounds like the ram is crapping out on you, not the chip :up:

[XC] gomeler

02-28-2009, 10:42 AM

Chip craps out at -126 Celsius on my thermometer. Quite pissed really, nothing seems to help it get passed this point.

demonkevy666

02-28-2009, 11:03 AM

what about running the Hyper transport at 1000mhz or lower seem it helped other bugged chips before ?

[XC] gomeler

02-28-2009, 11:07 AM

Tried 600MHZ, 1200MHz, 1800Mhz, and 2400MHz. Doesn't do anything. Making an emergency run to Fry's and picking up another board. If this doesn't do it I might have to drive and barter with G0ldBr1ck for a CPU if it turns out it's my CPU that is crapping out.

chew*

02-28-2009, 11:34 AM

the board is flakey after 253 gomeler.

hopefully you have a post code reader......turn pc on when watch for C1 if it goes back into a loop to f2 shut power switch off on PSU, flip back on and keep repeating till it doesn't reloop or it will default your bus or memory speed.....this is how I have to boot at 300, it will never ever coldboot 300fsb...

[XC] gomeler

02-28-2009, 02:31 PM

Just got back from Microcenter with a BIOSTAR TA790GX A2+. The GX3 version has been shown to work on LN2, hopefully this one will work also. Fry's only had one 790GX board but it was a demo board and they refused to let me test it with their hardware in their testing center. Fry's had just this board, so it's what I'm stuck with. I ran out the door with my LN2 pot still pulled down to -130C and it's just now at 4 C, so thawing everything out, swapping CPUs, and praying it was the board and not the CPU that was coldbugging.

G0ldBr1ck

02-28-2009, 05:26 PM

Any luck with the new board yet?

[XC] gomeler

02-28-2009, 05:28 PM

Just got home. Yellowbeard, local Corsair rep, is loaning me a Phenom X4 9500 to flash the board, along with 8GB of Corsair 800C4 XMS2 :up: He is a lifesaver, owe him big!

[XC] gomeler

02-28-2009, 07:49 PM

This CPU is a piece of garbage :mad: On the Biostar it'll do -126 Celsius and on the Gigabyte -132 Celsius. It'll post at 5.4GHz and make it into Windows but locks up the moment it goes idle and the die temp plummets. I imagine the chip's coldbug die temp is around -120 Celsius.

Now time to beg/barter with G0ldBr1ck for one of his spare 940BEs and pray I can get it here by Wednesday :yepp:

chew*

02-28-2009, 08:10 PM

thats really odd gomeler, I hope I don't run into that issue with my 940 or any of my other chips, waste of LN2.

[XC] gomeler

02-28-2009, 08:16 PM

Thankfully I only wasted ~20 liters testing this chip on two boards. It did give me a lot of time to learn AMD's quirks, now I have high hopes that the next chip will let me run full blown nitrogen. I KNEW I should have picked up another 940BE while I was at Fry's today. I've driven a total of ~200 miles picking up boards, old processors to flash boards, and insulation/tape. When this finally works I know this will be awesome :up:

G0ldBr1ck

02-28-2009, 08:22 PM

You want a week 49, or week 50 gomeler?

[XC] gomeler

02-28-2009, 09:27 PM

Week 50 retail I guess. 0850 supposedly has high-NB overclocks.

[XC] gomeler

03-02-2009, 08:28 AM

G0ldBr1ck is a life saver! Traded my bum LN2 chip for his untested X4 940BE. Both chips were the same week code so we'll see how it performs. Chip arrives on Tuesday so I'll probably bench all Tuesday night, take a nap, go to class on Wednesday morning, and bench after class through the afternoon and evening. Can't wait!

G0ldBr1ck

03-02-2009, 07:31 PM

Looking threw my documents I see that the chip I sent has a realy strong NB. More than all the other chips I have had so hopefully that will give you the edge you need.

[XC] gomeler

03-03-2009, 12:36 PM

Finally up and running. It requires that I use the 3x HTT multiplier, anything above that and it crashes. Can run up to ~240MHz HTT, so 720MHz HTT link speed. Working on testing the memory and memory controller right now, will have results later tonight :up:

edit: which makes me think the first chip I had just needed a 3x multiplier. I wonder why 4x or 5x don't work.. :shrug:

chew*

03-03-2009, 12:52 PM

gomeler;3692569']Finally up and running. It requires that I use the 3x HTT multiplier, anything above that and it crashes. Can run up to ~240MHz HTT, so 720MHz HTT link speed. Working on testing the memory and memory controller right now, will have results later tonight :up:

edit: which makes me think the first chip I had just needed a 3x multiplier. I wonder why 4x or 5x don't work.. :shrug:

5x Nb is bugged on that board, refuse to boot hangs on C1 state..

Ht :shrug: I think I played with all of the multis and they worked, no LN2 to verify though.

Dumo

03-04-2009, 01:30 AM

[XC] gomeler

03-04-2009, 04:34 AM

Heres my bios set up Gomeler...http://www.xtremesystems.org/forums/showpost.php?p=3597901&postcount=47
That board run good with my 0849, although only with single stage. I will post my bios settings ss when I find it in my other hdd.
I'm pretty sure your 0850 won't have problems especially with LN2.

5x Nb is bugged on that board, refuse to boot hangs on C1 state..

Ht :shrug: I think I played with all of the multis and they worked, no LN2 to verify though.

I can bench all day long at -80 Celsius with 2GHz+ HTT link speeds. The problem is the CPU won't go higher than ~4.9GHZ at -80 Celsius and 1.75vCPU. Everything gets screwy below -110C or so. After -110C I have to start dropping the HTT link multiplier and each drop of the multiplier for 10x nets me a little extra coldbug resistance. Down at 2x and 1x I can run at -180C sometimes but it'll often crash due to coldbug.

Just woke up, inserting a dozen aluminum foil shims between the LN2 pot and the IHS, hopefully this will provide enough of an insulating barrier that it'll increase the temp delta by 10 to 20 degrees so I can run full nitrogen rather than dance around it's awkward coldbug.

[XC] gomeler

03-04-2009, 01:32 PM

I've given up. I tested all the cores individually and I discovered the following.
Core Max Frequency
CPU 0 5.5GHz
CPU 1 5.2GHz
CPU 2 5.5GHz
CPU 3 5.3GHz

I've got two "bum" cores. These results were accomplished with 1.776vCPU, anything above 1.75-1.8v didn't improve anything. In order for this chip to idle without crashing due to coldbug with a full pot of nitrogen I had to use 9 layers of aluminum foil with no TIM in between the layers. This no doubt partially explains why I was only able to hit 5.5GHz. I spent about 6 hours today continuing to test settings in hopes of discovering what it takes to run these chips without coldbug being an issue and I'm at a loss.

Maybe there is a secret or maybe I need a new board or chip, but I've wasted around 90 liters of LN2 and I have nothing worthy of being posted. Highest I achieved was a wPrime 1024M run at 5150MHz, something I could have accomplished on my cascade. Highest 3D06 run was ~24k @ 5.1GHz with a single HD 4870X2 at 790/975.

Really wishing I had a Core i7 965 right now, it would love the remaining 70 liters of LN2 I have boiling away in the dewar. This has been an unpleasant adventure, now it's time to sell stuff to pay for the LN2 :mad:

G0ldBr1ck

03-04-2009, 03:10 PM

It just wasnt your day man :(. When we put together a little OC party in Atlanta, Ill be sure to have half a dozen chips (but no 0850EPDW) so this wont happen.

chew*

03-04-2009, 03:29 PM

I'd send you my 940BE chip gomeler but I need to make a half hearted attempt at the Bot with it when I get my pot and I need it alive :D. For the most part its still unscathed as I somewhat babied it till I learned my way around this board.

Out of curiosity did you lap it?

The IHS is really horrible...720BE i'm working on right now, I found the source of my NB clocking issue.......I've been sanding a while now and the core just started to break copper.....

http://members.cox.net/bostonreefer3/IMG_0650[1].jpg

[XC] gomeler

03-04-2009, 03:51 PM

Thanks for the support guys. I'm just going to move on to AM3 later this month after I make back some money. I see some AM3 mobo reviews in my future :)

Chew*, I didn't lap the chips but I definitely wasn't having a lack of cooling issues. If anything having such a huge concave heatsink might have helped me.

G0ldBr1ck thanks for the chip, when I get home I'll paypal you for the shipping. Whenever you come into Atlanta give me a heads up and we can try to get some guys together to bench.

Back to the school grind I go, presentation tomorrow, probably a good thing I did so poorly with this chip otherwise I'd be benching all tonight too.

chew*

03-04-2009, 04:25 PM

Sux man sorry to hear that.
Hoping I don't have the same issue.

Maybe my board is just cherry but of the boards I have here the one I'm using to post all my numbers on was purchased retail........

I'm guessing you were trying to punch up some scores for the tom's hardware thing...caught a really bad break, I will keep you up to date once I go under LN2 if i run into any weird stuff.

[XC] gomeler

03-04-2009, 07:13 PM

chew*

03-04-2009, 07:21 PM

gomeler;3696077']Guilty as charged. I think V2-V3 is going to take the 940BE category. Maybe I'll get lucky with a 720BE, we'll see :up:

Ahhh I got competiton :eek: just finished prepping mine. Good luck although I doubt you need it :up:

http://members.cox.net/bostonreefer3/IMG_0655[1].jpg

http://members.cox.net/bostonreefer3/IMG_0656[1].jpg