venice on ice 2850mhz 1.38v -40°C

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Originally Posted by Orthogonal

I've asked that question 2 times already in this thread and noone seems to know :mad:, or atleast won't answer. I'd like to know as well

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IIRC, didn't he say he already had 3/10? Someone gave the idea of going back in the BIOS updates to see at what point they stop working and he thought it was a good idea...so maybe that's to come?

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Originally Posted by Ackbar

Two CPUs and you're ready to make a generalization about the whole lot of CPUs not having a cold bug? I have no information one way or the other, but let's see what happens when these chips come out. I wouldn't be surprised if these CPUs were not typical of the lot of chips. Until I hear from several users, I'm going to hold out judgement about how well these things do in general.

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i heard of only very few winchester chips that dont have a low temp bug, and actually they still have a low temp bug, they just boot at low temps, but not really low temps. from what ive heard they only go down to -30°C max and dont work at lower temps, while now we have a pair of cpus that works flawlessly at low temps down to -40°C so i think its very promising... :)

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Originally Posted by saaya

i heard of only very few winchester chips that dont have a low temp bug

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Looks like venice is the same, OPP said it wouldn't play nice in -90s :eek:

Is -40c the coldest you can take these?

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Originally Posted by saaya

i heard of only very few winchester chips that dont have a low temp bug, and actually they still have a low temp bug, they just boot at low temps, but not really low temps. from what ive heard they only go down to -30°C max and dont work at lower temps, while now we have a pair of cpus that works flawlessly at low temps down to -40°C so i think its very promising... :)

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I have had 3 or 4 winnies. All bootet up and ran just fine at low temps. At boot -50c and load -44c on evap. All from different weeks. (week42, 45, 47 and 50)

I still thinks its a mobo issue cause if I start it up and then start the cooler it locks up when it hits 0c.

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Originally Posted by isp

Looks like venice is the same, OPP said it wouldn't play nice in -90s :eek:

Is -40c the coldest you can take these?

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its single stage! lol, yes -40°C is the lowest his single stage unti can pull i think, but hes getting his cascade ready (-100°C load temps :D)

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Originally Posted by Formann

I have had 3 or 4 winnies. All bootet up and ran just fine at low temps. At boot -50c and load -44c on evap. All from different weeks. (week42, 45, 47 and 50)

I still thinks its a mobo issue cause if I start it up and then start the cooler it locks up when it hits 0c.

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really? now thats interesting... you tried them on the dfi board, right?

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Originally Posted by Formann

I have had 3 or 4 winnies. All bootet up and ran just fine at low temps. At boot -50c and load -44c on evap. All from different weeks. (week42, 45, 47 and 50)

I still thinks its a mobo issue cause if I start it up and then start the cooler it locks up when it hits 0c.

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I tested 3 different winnies, 1 3200 and 2 3000 on gigabyte k8ns (plain, not ultra) and DFI Ultra - d and all of them booted @ ~ -30c @ evap... plus al overclocked far higher than with air.... 3200 and 1 3000 cbbid plus 1 3000 cbbhd. I also think it might be something on the mobos (not all mobos off certain brand / model but some).

hmmm very interesting then...

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Originally Posted by IvanAndreevich

You two are blind. 3800+ was ran on Neo2 with 1.37mod bios which is very old. Bios is only required so that the chip is detected properly but it will WORK FINE.

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I realized that, but that has nothing to do with this thread :stick:. I was asking about his 3500+ on the DFI Board. I've heard things on DFI-Street that the 3/10's are known to work on the new chips but they weren't sure about older BIOS's, so I wanted to know if he was perhaps using an earlier version

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Originally Posted by saaya

hmmm very interesting then...

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this week i have 2 more 3000 and a different gigabyte mobbo to try (thing is they all go to customers, and if something goes wrong, i should pay for them (the chips, that's it....) but... hell all goes in name of overclocking sience
:D

Superb, I can't wait to get me one of those :toast:

bad news! opp cant get it to work under his cascade, seems there is still a low temp bug :S :(

now lets hope E4 changes that, so far i only heard that E4 had changes made in the temp probe , thats why it needs a bios update to work on almost all boards.
i really hope the low temp problems dont have to do with the manufacturing process! :(

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Originally Posted by saaya

bad news! opp cant get it to work under his cascade, seems there is still a low temp bug :S :(

now lets hope E4 changes that, so far i only heard that E4 had changes made in the temp probe , thats why it needs a bios update to work on almost all boards.
i really hope the low temp problems dont have to do with the manufacturing process! :(

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My guess is that the "low temp bug" has to deal with the size of the core. I've been thinking about this a little, and I have a theory about why 90nm and smaller may not do well with the cold, but it's rather unsubstaniated.

well if it is about the diode i know of a fix... the two pins that read the diode temp on the mobo are on the outside edge of the cpu. just bend them outwards.. if you want to read the temps you can make some hardware to read the temps.. or if you dont care what the cpu says its temp is you can just plain cut the pins off.. no harm done.

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Originally Posted by Ackbar

My guess is that the "low temp bug" has to deal with the size of the core. I've been thinking about this a little, and I have a theory about why 90nm and smaller may not do well with the cold, but it's rather unsubstaniated.

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and why prescott go crazy with LN2 at -190° ??:stick:

i think is amd that is doing/doing wrong on something...

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Originally Posted by Malachia

and why prescott go crazy with LN2 at -190° ??:stick:

i think is amd that is doing/doing wrong on something...

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Well, like I said, it's all just an idea that I have. But I'm guessing that it's partly to do with the low power envelope of the AMD 90nm, not necessarily innately to do with the core size, but it's a consequence of it obviously.

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Originally Posted by saaya

bad news! opp cant get it to work under his cascade, seems there is still a low temp bug :S :(

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That's what I was sayin earlier...damn cold bug :mad: :(

We need to find out what the coldest they can go before they start flaking out

this could have something to do with sSOI itself, i think i read a the begining when sSOI was first being theorized(atleast by us) that it may have a problem with colder temps and would become unstable, but this problem doesn't exists with prescott.. maybe its just AMD's sSOI..?

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Originally Posted by MaxxxRacer

well if it is about the diode i know of a fix... the two pins that read the diode temp on the mobo are on the outside edge of the cpu. just bend them outwards.. if you want to read the temps you can make some hardware to read the temps.. or if you dont care what the cpu says its temp is you can just plain cut the pins off.. no harm done.

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maybe some one with a winchester could try this? the solution would be the same if this is the cold bug problem, so if someone with a winnie tried this instead of venice(much to valuable at this point) that would be great

Somehow I have a feeling that "Venice" core is not gonna bring more hope to cascade users than "Newcastle" and "Winnie" do now. We have seen some Winnies doing benches at 3.0-3.1GHz on phase change, though. Venice might be good for moderate-low temps but looks like too much cold renders them useless. Unless, there IS something that can be done to make it work. Let's wait for more information from OPP...

On the side note from what we see here now... I hope I'm REALLY wrong but I wouldn't be surprised when FX-57 will not match speeds FX-55 now does under cascade... Hopefully, I'm seriously OFF!

EDIT: Not that Winchester or Necastle were ever chips of choice for cascade users...

i am quite interested to know the difference between air and phase change...

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Originally Posted by Malachia

and why prescott go crazy with LN2 at -190° ??:stick:

i think is amd that is doing/doing wrong on something...

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intel 90nm =! amd 90nm ;)

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Originally Posted by isp

That's what I was sayin earlier...damn cold bug :mad: :(

We need to find out what the coldest they can go before they start flaking out

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it varies from chip to chip it seems...

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Originally Posted by R.Rabbit

this could have something to do with sSOI itself, i think i read a the begining when sSOI was first being theorized(atleast by us) that it may have a problem with colder temps and would become unstable, but this problem doesn't exists with prescott.. maybe its just AMD's sSOI..?

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never heard that they became unstable, they just didnt clock higher...
2ghz air and 2.2ghz ln2 was something common for the first a64 chips :D

nothing from opp yet... hope he posts some infos soon :)

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Originally Posted by saaya

really? now thats interesting... you tried them on the dfi board, right?

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Nope. Haven´t tried any in my DFI yet. Just in the Neo2 0411 Korea.

No problems what so ever. They all overclocked average. 2500-2600 on air/water, and 2900-2950 with the CPU cooler (-44c load)

Anyone got a Winnie that cant handle the cold? Give me a fair price, and Ill buy it just to prove my self wrong :)

Would be nice to get it confirmed. That its/its not just mobo issues i mean.

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Originally Posted by Ackbar

Well, like I said, it's all just an idea that I have. But I'm guessing that it's partly to do with the low power envelope of the AMD 90nm, not necessarily innately to do with the core size, but it's a consequence of it obviously.

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Maybe maybe not.
Problem more likely is diode location inside the chip or how it is programmed. Different board will impact bootability (prime example is MSI vs Asus A8V or something 939). I've had (dis)pleasure of finding out Asus booting maybe 10-20c colder temp than MSI on same chips. Also, each winnie has different behavior on same mob. Some will boot till -20c, some till -30c, some till -50c, some will last till -60c (all evap temp) and few of them won't do anything below 0 (had 1 that actually I couldn't really find out how low as my single phase unit didn't go below -70c on evap). Now all these temps are about 5-10c off from actual evap temp is my guess even for heavily tuned Mach II unit with baker evap but there it is. Maybe venice plays nicer but who knows. There were few FX-55 that couldn't handle cascade as well. Only time will tell.

this doesnt look good for my future chilly1 unit, i might have to pick up a 3500+ clawhammer or something

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Originally Posted by agenda2005

WHY IS EVERYONE WITH THIS CHIP HIDDDING AWAY OF SHYING AWAY FROM RUNNING 4 MEMORY DIMMS AT 1T CMD AND DDR400.
All other benchmarks shown here are not new or innovative in anyway. No offence intended.
PLEASE RUN DOUBLE SIDED 4 X512MB RAM at DDR400 and 1T CMD SHOWING ALL DIMMS IN SANDRA SHOT SINCE CPU-Z IS BUGGY. HOW LOUD DO YOU GUYS WANT US TO SOUND ABOUT THIS ISSUE?

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Hey bro,
I don't know if you've read through my thread about the Venice 3800+, but I CLEARLY stated that I DID try to boot 4x256 bh5 and it DID NOT WORK. I then tried only 2x256 and could boot then. BTW, the 256 sticks were all double sided. Hope that settles that.... :rolleyes:

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Originally Posted by saaya

bad news! opp cant get it to work under his cascade, seems there is still a low temp bug :S :(

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IF you get the chance and don't mind Saya... which PS and MB is Opp doing his testing with, and is it a "doesn't work at all" @-90C, or just doesn't boot, or ??? Thanks for the thread and the info in it :toast:

I suspect reset/pwr up current demand may be the issue.

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Originally Posted by EMC2

IF you get the chance and don't mind Saya... which PS and MB is Opp doing his testing with, and is it a "doesn't work at all" @-90C, or just doesn't boot, or ??? Thanks for the thread and the info in it :toast:

I suspect reset/pwr up current demand may be the issue.

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Daniel,

That's all OPP wrote in another thread... I think he was trying that on MSI SLI, not sure though... He haven't provided any other info on the open forums as far as I searched. Still waiting :)

I Need an update like crack-head on withdrawal :D

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Originally Posted by OPPAINTER

I have the 3500 running now, it can't handle -90s, it freezes up in windows.
OPP

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wat is sSOI?
ive only heard of SOI (silicon on insulator) SS (strained silicon) and SSDOI (a combination)
winchester doesnt have SS so that theory doesnt work :)

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Originally Posted by R.Rabbit

this could have something to do with sSOI itself, i think i read a the begining when sSOI was first being theorized(atleast by us) that it may have a problem with colder temps and would become unstable, but this problem doesn't exists with prescott.. maybe its just AMD's sSOI..?

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Any price prevision?
PS:Kick ass score @ -40c and 1.38v,i think I'll wait to catch one of these over a 3000+ winchester.

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Originally Posted by reject

wat is sSOI?
ive only heard of SOI (silicon on insulator) SS (strained silicon) and SSDOI (a combination)
winchester doesnt have SS so that theory doesnt work :)

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should be "strained silicon on insulator"

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Originally Posted by R.Rabbit

this could have something to do with sSOI itself, i think i read a the begining when sSOI was first being theorized(atleast by us) that it may have a problem with colder temps and would become unstable, but this problem doesn't exists with prescott.. maybe its just AMD's sSOI..?

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No, it can't be sSoi. If that were the case, FX-55's would have the cold bug as well and most of them don't.
http://img175.exs.cx/img175/5484/ssoi3pt.jpg

Why the hell do people assume that CBI is correct? :stick: Get your info from PDFs not from software that has been programmed by somebody who may very know less about the issue than you ;)

The FX-55 is and always has been strained silicon-on-insulator or sSOI, AMD publicly declared that at launch :up:

As for the cold bug - there are a number of theories but I personally believe it has something to do with the thermal diode reporting incorrectly, not inherent limits of the chip - AMD changed the diode with Winchester, they changed it again with Venice AFAIK and since we haven't seen new BIOSes for the chips yet (they haven't been officially launched, go figure) it's quite possible this issue could be resolved for all Venice core CPUs.

I remain optimistic! :rehab:

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Originally Posted by s7e9h3n

No, it can't be sSoi. If that were the case, FX-55's would have the cold bug as well and most of them don't.
http://img175.exs.cx/img175/5484/ssoi3pt.jpg

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yeah i didn't think about that... hmmm, well its gotta be the diode, i wouldn't be surprised if this cold bug is an anti overclocking issue made by AMD. it would make sense becuase they designate the FX line as their enthusiest proc and conveniently(spell?) it has no cold bug... similarily as we all know its mult is unlocked
but if this where true if then logically there would be a specific temp in which the procs would stop working and all would have the same bug, not just some :shrug:

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Originally Posted by s7e9h3n

I CLEARLY stated that I DID try to boot 4x256 bh5 and it DID NOT WORK. I then tried only 2x256 and could boot then. BTW, the 256 sticks were all double sided. Hope that settles that.... :rolleyes:

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Those 256MB sticks might have had chips on both sides of the memory module
but are in fact single "banked" alot of people get confused between double banked and double sided DDR SDRAM...

To test the memory controller they will need to use 4x 512MB ram modules, these will be double banked.

wow that was awesome, :slobber: keep up the good work and THANK YOU!
can't wait to see the results on water and air...

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Originally Posted by R.Rabbit

yeah i didn't think about that... hmmm, well its gotta be the diode, i wouldn't be surprised if this cold bug is an anti overclocking issue made by AMD. it would make sense becuase they designate the FX line as their enthusiest proc and conveniently(spell?) it has no cold bug... similarily as we all know its mult is unlocked
but if this where true if then logically there would be a specific temp in which the procs would stop working and all would have the same bug, not just some :shrug:

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Hey everyone! Im new to the forums. i agree and wouldn't put it past amd to have put the bug in intentially. I too remain optomistic and from the results I've seen I am looking forward to seeing what the san diegos can do since that was my next proc to upgrade to. I dont really care a bout a cold bug myself as I use water, As long as I can get a reasonable oc say 4ghz to 6 ghz Id be happy as a peach seed in a field of manure. I just want to be able to do it with 4 sticks of ddr.

no way amd has nothing againt overclockers, in fact the reason that they superlocked athon xps was to stop unscrupulous resellers increasing multi and then charging for a better cpu in prebuilt computers

Kinda off topic... but I just want to say that Saaya has been doing a good job of posting this topic to other forums! I'm sure a lot of people in other forums that don't post on other forums are VERY interested in the happenings of the Venice and don't always know where to get the best info. :toast:

Any new results?????????????

I haven't read all posts but when do we see Venice core cpus in stores?

nice results. april 4th for venice i beleive

Crank that voltage up man, what the heck you have phase change for! :D
I wanna see maximum overclock not the low voltage. :toast:

PCICE, nice job. I have bookmarked this topic, hoping that you're update comes soon. :bows:

Did he get it back from OPP yet to test it some more?

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Originally Posted by MsB

Hey everyone! Im new to the forums. i agree and wouldn't put it past amd to have put the bug in intentially. I too remain optomistic and from the results I've seen I am looking forward to seeing what the san diegos can do since that was my next proc to upgrade to. I dont really care a bout a cold bug myself as I use water, As long as I can get a reasonable oc say 4ghz to 6 ghz Id be happy as a peach seed in a field of manure. I just want to be able to do it with 4 sticks of ddr.

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First off, Welcome to XS! :toast:

Second, there is no way that you are gonna see any AMD chips hitting 4Ghz on water anytime soon, let alone 6Ghz. That is Intel territory.

I do believe 4Ghz may be attainable for a San Diego core under a -100C Cascade, but not water. And even then, I'd consider $Ghz on any AMD proc to be far better than a "reasonable OC", as right now that is basically the holy grail for everyone here. Anywho, welcome again and enjoy yourself! This is without a doubt the most knowledgeable and helpful overclocking community on the net. Make yourself at home. :)

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Originally Posted by trakslacker

First off, Welcome to XS! :toast:

Second, there is no way that you are gonna see any AMD chips hitting 4Ghz on water anytime soon, let alone 6Ghz. That is Intel territory.

I do believe 4Ghz may be attainable for a San Diego core under a -100C Cascade, but not water. And even then, I'd consider $Ghz on any AMD proc to be far better than a "reasonable OC", as right now that is basically the holy grail for everyone here. Anywho, welcome again and enjoy yourself! This is without a doubt the most knowledgeable and helpful overclocking community on the net. Make yourself at home. :)

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LOL Actually, I misspoke I was half asleep when wrote that, doh, I meant 400 mghz to 600 mghz. I now get extra 460 mghz out of my winnie 3500+ on water. I was hoping with a san diego I should be able to 3.0-3.4 ghz on water. With 1 mgb of cache that should be a very nice performer, expecially if it could be done on 4 x 512 mb sticks of ddr.

Hey :d its like a week till april 4th already. haven't they given prelim prices on these?

I don't think AMD will change the prices, as it is simply a revision change. Of course most dealers will charge a small premium in the first few weeks to get rid of the old stock.

This chip has been tossed around for what... 4 days and noone has bothered to test 4x512 1T yet?

Its the burning question we all have. :stick: :(

when will they (venice) hit the streets? :D

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Originally Posted by enok

when will they (venice) hit the streets? :D

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Read three post above yours.

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Originally Posted by conrad.maranan

Read three post above yours.

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a better question is when will it hit newegg?

no news??? try benching on air or water if really low temps wont work :stick:

Hi yall, this is my first post.

That is some impressive stuff. My clawhammer doesn't scale well at all at default voltage. Have you all tried the new relece of CPU-Z? It didn't mention if it had venice RAM corrections...but you never know.

Looks like the venice mem controler is REALLY spectacular, I bet the FX is jelios :). By the way, alot of people are speculating that AMD put an over clocking bug in there on purpose to hinder over clockers. Using the logic of Fixed multipliers as proof that AMD does not like over clockers. The fact is, the reason that the norm A64's are locked is so that people don't get chips that companys sell low speed parts as high speed parts. Remember hearing about the 1 million XP cpu's that were getting marked. Personaly, I think it is an error with an absolute value sign in the boot up cycle. As a programer, sometimes we get a little crazy to aviod math errors like dividing by 0 and like wise by just some code trickery. What happens is things like the negitive temp bug. Lets say the cpu is running at a core of -70, well, the MB would see 70c and respond acourdinly. That might not be the exsact problem mind you...but I do think it is a bug and not an intentinal attemt to hinder enthusiests from over clocking their own chips.

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Originally Posted by Gsus_Freak

Hi yall, this is my first post.

That is some impressive stuff. My clawhammer doesn't scale well at all at default voltage. Have you all tried the new relece of CPU-Z? It didn't mention if it had venice RAM corrections...but you never know.

Looks like the venice mem controler is REALLY spectacular, I bet the FX is jelios :). By the way, alot of people are speculating that AMD put an over clocking bug in there on purpose to hinder over clockers. Using the logic of Fixed multipliers as proof that AMD does not like over clockers. The fact is, the reason that the norm A64's are locked is so that people don't get chips that companys sell low speed parts as high speed parts. Remember hearing about the 1 million XP cpu's that were getting marked. Personaly, I think it is an error with an absolute value sign in the boot up cycle. As a programer, sometimes we get a little crazy to aviod math errors like dividing by 0 and like wise by just some code trickery. What happens is things like the negitive temp bug. Lets say the cpu is running at a core of -70, well, the MB would see 70c and respond acourdinly. That might not be the exsact problem mind you...but I do think it is a bug and not an intentinal attemt to hinder enthusiests from over clocking their own chips.

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I must agree with you that it isn't very likely that the bug was made on purpose, but I don't think that AMD willl rush to the drawing board niether. Because there like maybe 10000 people atmost that have the stuff to get thier CPU to minus XX degrees.

I hope that the San Diego's won't have this problem because I'm gonna buy 1 and probebly put it under YoupY's cascade.

Seems goods this Venice, but with CPU-Z 1.28 there are bugs too ? :cool:

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Originally Posted by Hallowed

This chip has been tossed around for what... 4 days and noone has bothered to test 4x512 1T yet?

Its the burning question we all have. :stick: :(

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4x256 BH5 was tested and it wouldn't boot

I can't wait to see how far back in bios revisions on the DFI this chip will boot from ; )

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Originally Posted by HaLDoL

4x256 BH5 was tested and it wouldn't boot

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Yeo only at 2T :(

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Originally Posted by Jasonhk

Yeo only at 2T :(

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Ummmm......no. It was at 1t :)

s7e9h3n: Did you test how high the FSB did go with 4x512 and 1T timing? cus im going to order 4x512 TwinMOS Speed Premium & A64 with Venice core soon, and would like to know.

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Originally Posted by Rolle2k

s7e9h3n: Did you test how high the FSB did go with 4x512 and 1T timing? cus im going to order 4x512 TwinMOS Speed Premium & A64 with Venice core soon.

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Never had 4x512 sticks to test :p: . I only was able to test 2x256 BH-5:
http://img115.exs.cx/img115/9205/2754wx.jpg

anyone has a link to another venico or diego threat??? anywhere hopefully with runs on air, water and 4x512mb???

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Originally Posted by metro_oc.cl

anyone has a link to another venico or diego threat??? anywhere hopefully with runs on air, water and 4x512mb???

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HERE

It's my thread about the 3800+ Venice. It was stickied, but I don't know what happened. Anyways, you'll find benches of the cpu on both stock and phase-change cooling......

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Originally Posted by s7e9h3n

HERE

It's my thread about the 3800+ Venice. It was stickied, but I don't know what happened. Anyways, you'll find benches of the cpu on both stock and phase-change cooling......

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thanks mate but i have already read that one

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Originally Posted by pc ice

air and water result's from the 3500 will be posted in just a few hr's.

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Thanks for the info :toast:

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Originally Posted by pc ice

air and water result's from the 3500 will be posted in just a few hr's.

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nice ill be checking the forum then :banana: :banana:

w00t :party:

Can you give us a little hint? Good or bad?

what do you think :stick:
xtreme offcource :toast:

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Originally Posted by pc ice

air and water result's from the 3500 will be posted in just a few hr's.

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I'm sure this is what about 90% of us are waiting for....... :slobber:

I'm very curious what exactly is on the list of benches and other tests ;) ?

Thanks for your effort, pc ice :toast:

w00t! Water cooled Venice scores! PC Ice, you rock! :toast:

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Originally Posted by HousERaT

I'm sure this is what about 90% of us are waiting for....... :slobber:

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Th other 10% of us are wondering where are the XTREME screenies of this 3500+ :D

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Originally Posted by pc ice

air and water result's from the 3500 will be posted in just a few hr's.

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Great :)

gogo :p:

It's very nice
I think on air those 3000/3200 can climb 2.7ghz easily.

sweet avatar for wonder bra

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Originally Posted by s7e9h3n

Th other 10% of us are wondering where are the XTREME screenies of this 3500+ :D

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I think that air and water are more important cause there is no real use for running these under extremly low temps (-70+) cause u cant use them 24/7.

Most people run on air / water.

:)well i just have to by a 3500+ venice

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Originally Posted by reject

wat is sSOI?
ive only heard of SOI (silicon on insulator) SS (strained silicon) and SSDOI (a combination)
winchester doesnt have SS so that theory doesnt work :)

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i talked to amd on cebit, and yes, all their 90nm cpus are built on soi and use SS. at least thats what they told me.

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Originally Posted by matt9669

The FX-55 is and always has been strained silicon-on-insulator or sSOI, AMD publicly declared that at launch :up:

As for the cold bug - there are a number of theories but I personally believe it has something to do with the thermal diode reporting incorrectly, not inherent limits of the chip - AMD changed the diode with Winchester, they changed it again with Venice AFAIK and since we haven't seen new BIOSes for the chips yet (they haven't been officially launched, go figure) it's quite possible this issue could be resolved for all Venice core CPUs.

I remain optimistic! :rehab:

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hmmm good idear matt! maybe the new chips need an updated bios as well to get rid of the cold bug completely... could be possible as well...

but from what i heard the temp probe hasnt changed in venice, it only has been changed in winchester and rev E4 aka san diego, wich is why they both needed a new bios to boot while venice doesnt need an updated bios.

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Originally Posted by R.Rabbit

yeah i didn't think about that... hmmm, well its gotta be the diode, i wouldn't be surprised if this cold bug is an anti overclocking issue made by AMD. it would make sense becuase they designate the FX line as their enthusiest proc and conveniently(spell?) it has no cold bug... similarily as we all know its mult is unlocked
but if this where true if then logically there would be a specific temp in which the procs would stop working and all would have the same bug, not just some :shrug:

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lol, funny theory, but no, i really really dont think amd tried to limit ocers by making their chips unstable or not bootable at low temps. if they did then they did a really bad job since many chips seem to still boot at -40°C or even colder...

and i dont think amd would change their cpus just because 0.01% of their cpus get supercooled and overclocked, wich helps them marketing and selling their cpus...

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Originally Posted by bugeyes

Those 256MB sticks might have had chips on both sides of the memory module
but are in fact single "banked" alot of people get confused between double banked and double sided DDR SDRAM...

To test the memory controller they will need to use 4x 512MB ram modules, these will be double banked.

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there are also DS SB 512mb sticks, but very few.
pc ice said he will use 4 512mb sticks of tccd and see if they run at stock with 1t and how high he can get them :)

hey MsB, welcome to XtremeSystems :toast:

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Originally Posted by Ackbar

Kinda off topic... but I just want to say that Saaya has been doing a good job of posting this topic to other forums! I'm sure a lot of people in other forums that don't post on other forums are VERY interested in the happenings of the Venice and don't always know where to get the best info. :toast:

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thx :)

many news sites i sent a link to the venice preview didnt want to post about it because they or their partner sites will have venice reviews ready soon and fear that less people will read the review if they already saw a preview :rolleyes:
so i thougt i will just bring the news to the people directly then :D

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Originally Posted by Hallowed

This chip has been tossed around for what... 4 days and noone has bothered to test 4x512 1T yet?

Its the burning question we all have. :stick: :(

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pc ice hasnt picked up the chip from opp yet, and opp can get it to boot under his cascade...

welcome to XtremeSystems Gsus_Freak :toast:
and im sure amd likes ocers, if they wouldnt then they would not sell a chip like the fx with all multipliers unlocked, and they would have locked all multipliers on all a64s and not just the higher ones ;)

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Originally Posted by HaLDoL

4x256 BH5 was tested and it wouldn't boot

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this sounds more like a bios problem to me though, since bh5 only comes in 32mb/ic sizes wich means 4 256mb sticks bh5 are pretty much like 2 512mb sticks bh5... of course there are other differences, but whether its 4 256mb sticks or 2 512mb sticks, its still 32 memory chips to address either way... so kinda weird the one works but the other doesnt?

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Originally Posted by Rolle2k

s7e9h3n: Did you test how high the FSB did go with 4x512 and 1T timing? cus im going to order 4x512 TwinMOS Speed Premium & A64 with Venice core soon, and would like to know.

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please read some posts before you ask something, in every page of this thread this question has been asked at least once and at least been answered once as well :D

amd wouldnt block the procesors for -100°C people that have that equipment is like 0.000001% of the market and limting the procs. because of them would be expensive

that would be bad for marketing couse most of us come here and see pc ice, fugger, macci, opp, opb, etc... and go and try to buy the procesors and all we can buy to reach the same level of oc (thats insane but hope is the last thing you loose)

p.d. sorry for mi english it sucks :(

He said they'd be posted in about an hour... it's been nearly 3. :(
I guess it's worth it though, I just hope he's not running into problem's right now. :eek:

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Originally Posted by Orthogonal

He said they'd be posted in about an hour... it's been nearly 3. :(
I guess it's worth it though, I just hope he's not running into problem's right now. :eek:

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maybe bad traffic on the streets between opps and pc ice's place :D
just subscribe to this thread and check it out as soon as you get a notification of 3 new posts in this thread in a row, than you can be sure that something new has been posted! :D :lol:

And he said a few hours so 2 should be considered a minimum, patience ;)

hehe can't wait...

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Originally Posted by LowRun

And he said a few hours so 2 should be considered a minimum, patience ;)

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2 is a couple. A few would be considered at least 3 hours. :D

I have been communicating with an AMD Technician over the past several weeks over various issues, and hopefully this will clear the air in regards to filling all 4 DIMMS and running 1T CMD rate.

I asked this:

Will the Venice and SanDiego CPU's resolve this
issue.........meaning will these cores allow all 4 DIMMS filled with
double-sided ram on s939 boards to default to DDR400 and 1T CMD Rate
instead of DDR333 and 2T like the Winchester/NewCastle/Clawhammers
currently do?

His reply was this:

As you have perceived, the Venice and San Diego cores will alleviate
this problem. AMD has revised and improved the memory controller
within the chip to eliminate the issue.

Hope this helps. If you have any other questions, please feel free to
contact me.

Regards,

Quit stressing..................it will work. :D

Thanks Lidocaine, damn good news, my 4x512 sticks should be here in 2 days so i'm a happy camper :D

Thanks for the news Lidocaine :banana:

thx for the infos :)

hmmm in case the 4 512mb sticks DONT work with 1t on pc ice' rig, then this means either your amd guy misunderstood you and meant they will default to ddr400 2t and not ddr333 2t like they do know, OR the boards need a bios update to not force 4 512mb sticks to 333 or 400 2t, wich makes sence as well....

if we're lucky it will work with the current bios :D

is it me or has it been almost 6 hours since PC ICE's post :stick: :rolleyes:

I CANT WAIT FOR THEM TO SHIP ON THE 4TH :p:

there is one thing that bothers me tho everyone says the cold bug is the chips fault me personally think it is a mb issue that a simple bios flash will fix like how every one has to flash there bios to be able to use the venice.

i just dont see why AMD would not work on this issue more other then pass it down to a nether core well hopefully they will get it all sorted by the time i get mine because i wouldnt mind putting it under a ps unit.

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Originally Posted by Fzero

I CANT WAIT FOR THEM TO SHIP ON THE 4TH :p:

there is one thing that bothers me tho everyone says the cold bug is the chips fault me personally think it is a mb issue that a simple bios flash will fix like how every one has to flash there bios to be able to use the venice.

i just do see why AMD would not work on this issue more other then pass it down to a nether core well hopefully they will get it all sorted by the time i get mine because i wouldnt mind putting it under a ps unit.

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It's because there essentially is no demand for a cpu that functions sub-zero. Only a small (I mean real small) percentage of users put cpu's under phase-change. ;)

About the temp issue... everyone keeps saying only the E4 (San Diego) CPUs had an updated thermal thingy. The E3 (Venice) remains the same (a la Winchester cold bug).

Therefore, it is my hypothesis that AMD redid the temp problem for their E4 90nm stuff so that people will be able to phase change cool FX-57s for some bad ass overclocking. We poor losers that have to get Venice CPUs (E3) will be relegated to -90 C or higher temps. :) (I use -90 C because that is when Opp said the Venice stopped working under his cascade.)

Remember, AMD is far more concerned about enthusiasts than some other CPU companies. Being that the FX-57 is an enthusiast-oriented CPU, it is to AMD's benefit not to thermally cripple it.

from what i heard it didnt stop working at -90°C, it didnt work at -90°C!


so far we only got confirmation of it working at -40°C and not woking at-90°C afaik, somehwhere between that it stops working, but who knows where...

and yeah mcnbs, about the temp probe rework and the fx57 thats exactly what i think, they re-did the temp probe so their enthusiast cpu is ready to reach some nice numbers.

I have come to the conclusion that PC ICE got kidnnapped by aliens theyre probably probing him now... :stick:

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Originally Posted by winston64

I have come to the conclusion that PC ICE got kidnnapped by aliens theyre probably probing him now... :stick:

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Oh. I thought he got dragged into the jungle by drunk monkeys...

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Originally Posted by saaya, referring to testing 4x256MB dimms

this sounds more like a bios problem to me though, since bh5 only comes in 32mb/ic sizes wich means 4 256mb sticks bh5 are pretty much like 2 512mb sticks bh5... of course there are other differences, but whether its 4 256mb sticks or 2 512mb sticks, its still 32 memory chips to address either way... so kinda weird the one works but the other doesnt?

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But wouldn't signal quality decrease when it is split between 4 banks instead of 2 banks? If what you say is true, then we would be able to oc 4x256 to simliar frequencies reached with 2x512. Who knows, maybe we can and nobody has tested...but I'm pretty dern sure it would take extra voltage. Nonetheless, it could easily be a bios problem.