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post #4651 of 9641
Quote:
Originally Posted by moorhen2 View Post
Well i think it's like we thought,it's GD70 specific,so it must be down to bios coding,as mastiffman and i can cold boot @ 2.8nb using bios 1.5b1,although there are a couple of users on here that dont seem to have this problem,making even less sense now,lol!!!
It is specific to the GD70 v1.0 it seems. I think we have to narrow down at exactly what temp the "cold boot bug" takes place. I'm thinking that @ < 19/20C Ambient and no cold boot. Anything above seems to be ok.
FWIW, I'm running the 1.4 BIOS and I get the cold boot issue.

Quote:
Originally Posted by GeneralCuster44 View Post
FYI MSI Lies when they say the ram is 2000+...I got corsair dominator 2000 and I can only go to 1600 with it with out messing up my board. I had to rma one already becuz when I tryed to get my ram to 2000 it would not post after that. So I was pretty disappointed with MSI there lieing about it becuz no AMD mobo can get to 2000 ram right now!!
As Marc said, your CPU is the restriction here. The integrated memory controller (IMC) on c2 revision cpus' is limited to 1334 MHz and the C3's seem to be 1600. Although, with the right amount of tweaking and some good ram, you should be able to extract more than that out of them. If anything you'll be able to run at some REALLY tight timings, which gives as much of a performance boost as higher frequency (to a point of course).



MastiffMan, I'm running the 1.0 revision board, 1.4 BIOS. Next time I cold boot I'll be sure to check ambient temp before I do so.

Here's a pic of my board, you can clearly see the rev.1.0.

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post #4652 of 9641
Looks like v1.0 is having this issue where as v1.1 is not. I wonder what else they improved/changed. O wait I see a new button on the board that says 5.0ghz. I......must...........hit.........button!
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post #4653 of 9641
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post #4654 of 9641
Quote:
Originally Posted by mduclow View Post
Ok, so having read that it appears the cold boot issue with the NB seems to be realated to the 14x multiplier, I tried setting the fsb to 234Mhz (this set my ram to 1560), which gives me a NB of 2808, and sure enough it cold booted just fine.

So, for me with bios 1.8, 14x on the NB to get 2.8, won't cold boot, but 234Mhz x 12, giving me 2808, is fine, cold booted no problem.

Marc
Same here man! I can even cold boot @ 3003mhz CPUNB. I can also crank my HT Link up to 3003Mhz too now if I want. Haven't yet...

Quote:
Originally Posted by mxthunder View Post
Interesting. mine wouldnt boot with a 14x multi to yield a 2800mhz nb either. I am using 1.5b4 bios
Have you tried 1.5b1?

Quote:
Originally Posted by BlackOmega View Post
It is specific to the GD70 v1.0 it seems. I think we have to narrow down at exactly what temp the "cold boot bug" takes place. I'm thinking that @ < 19/20C Ambient and no cold boot. Anything above seems to be ok.
FWIW, I'm running the 1.4 BIOS and I get the cold boot issue.

As Marc said, your CPU is the restriction here. The integrated memory controller (IMC) on c2 revision cpus' is limited to 1334 MHz and the C3's seem to be 1600. Although, with the right amount of tweaking and some good ram, you should be able to extract more than that out of them. If anything you'll be able to run at some REALLY tight timings, which gives as much of a performance boost as higher frequency (to a point of course).

MastiffMan, I'm running the 1.0 revision board, 1.4 BIOS. Next time I cold boot I'll be sure to check ambient temp before I do so.

Here's a pic of my board, you can clearly see the rev.1.0.
Cool, let us know! I have the Big Typhoon also! Did it come with the proper Mounting for AM3?

Just want to clear a couple things up. No Offense Black...

AMD Socket AM3 Memory "Standard":
The memory "Standard" for the AM3 Socket, regardless of if it's an AthlonII, "C2" or "C3" PhenomII and I believe the Semprons as well is 1333Mhz DDR3 Ram. That's the "Standard" That doens't mean that you "Can't" run anything higher. You can. I had an PII x4 810 C2 that took my ram stable to as high as 1786mhz. 4Gb at that. Really, the Wafer Cut Number (9xxxx) will determine how well the CPUNB will OC and handle Ram freq.

The difference between the C2 and C3 revision PhenomII's is that the C2 had a very difficult time running all 4 Dimm Slots populated at once. So the Main improvement for the C3 PhenomII's was a stronger IMC, enabling it to For sure handle all 4 dimm slots populated at once without a hitch. now with this improvement came Better OCing of the CPUNB itself in the means of requiring less volts to run the same OC, 2 or 4 dimm slot setups. That just comes with the territory of hacing a better IMC. one willnotice as well that the closer the Wafer Cut number is to "90001" the better the CPUNB (IMC) will clock bweing that 90001 is the center of the wafer. The further out from the center that a chip is Cut, the more it leaks voltage, increasing het, lowering the potential of a good OC at lower volts...

Cold Boot "Bug":
This term is referring to the issue that previous CPU's had when under the extreme cold temps of Ln2 and Lhe. The processor wouldn't boot because of how low it's temp were... Yes that was a CPU issue. I believe on the A64's. under extreme temps (Can't remember how low the temps started to show the "Cold Bug" -45 or -50) the silicon-on-insulator substrate properties would change to the point of lowering the performance of the transistors.

The issue that we have here is what we believe to be related to coding of the BIOS architecture, related to CPUNB multi's higher than x13. My guess is because the "standard Hypertransport Max Multi is x13.... So I don't think that it has anything to do with the chip having a cold bug because it doesn't. Early PhenomII's were taken past -240 and OCed...

Quote:
Originally Posted by gsk3rd View Post
Looks like v1.0 is having this issue where as v1.1 is not. I wonder what else they improved/changed. O wait I see a new button on the board that says 5.0ghz. I......must...........hit.........button!
Either way, You can still pull the multi down to x13 on th newer BIOS and OC the HTRClk to cold boot way above 2600Mhz if needed. OR use BIOS 1.5b1 and set the CPUNB multi x14 and only have to IC the HTRClk a little to geth that high Freq cold boot that we all so desire!
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post #4655 of 9641
How far can you push AMD 955 on stock voltage? Is 3.6Ghz too much?
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post #4656 of 9641
Quote:
Originally Posted by Mastiffman View Post


Cool, let us know! I have the Big Typhoon also! Did it come with the proper Mounting for AM3?

Just want to clear a couple things up. No Offense Black...

AMD Socket AM3 Memory "Standard":
The memory "Standard" for the AM3 Socket, regardless of if it's an AthlonII, "C2" or "C3" PhenomII and I believe the Semprons as well is 1333Mhz DDR3 Ram. That's the "Standard" That doens't mean that you "Can't" run anything higher. You can. I had an PII x4 810 C2 that took my ram stable to as high as 1786mhz. 4Gb at that. Really, the Wafer Cut Number (9xxxx) will determine how well the CPUNB will OC and handle Ram freq.
Actually, there seems to be conflicting information on AMD's site. I always look at the technical documants because I believe that they were written by AMD engineers rather than PR spokes people.

Quote:
• Integrated Memory Controller
• AMD Memory Optimizer Technology
• Low-latency, high-bandwidth
• Adaptive Prefetching Support
• ECC checking with double-bit detect and single-bit correct
• Supports up to four unbuffered DIMMs
• Package AM2r2
• 144-bit DDR2 SDRAM controller operating at frequencies up to 533 MHz
• Package AM3
• 144-bit DDR3 SDRAM controller operating at frequencies up to 667 MHz
EDIT:

Regarding the Big Typhoon mounting, there are 2 different kits that I know of.

This kit, which will not work. Notice the topmost bracket set is missing 4 eyelets that you can see on mine





PS: If you do decide to mount it, DO NOT stick the backplate to the board. Made that mistake on a 939 board of mine. Never again. Had to cut it off.
Edited by BlackOmega - 2/8/10 at 10:58pm
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post #4657 of 9641
Quote:
Originally Posted by ToxicAdam View Post
How far can you push AMD 955 on stock voltage? Is 3.6Ghz too much?
Nah, 3.8Ghz EASY!

Quote:
Originally Posted by BlackOmega View Post
Actually, there seems to be conflicting information on AMD's site. I always look at the technical documants because I believe that they were written by AMD engineers rather than PR spokes people.
Nothing came up!

What do you mean by "conflicting info"? For what? The PhenomII's Memeory standard?

What is conflicting about this statement? 667+667 =1333Mhz DDR3 Ram.

Quote:
Package AM3
• 144-bit DDR3 SDRAM controller operating at frequencies up to 667 MHz

Edited by Mastiffman - 2/8/10 at 10:59pm
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post #4658 of 9641
Quote:
Originally Posted by Mastiffman View Post
Nah, 3.8Ghz EASY!



Nothing came up!

What do you mean by "conflicting info"? For what? The PhenomII's Memeory standard?

What is conflicting about this statement?
Here's the direct link: http://support.amd.com/us/Processor_...S_3.04_PUB.pdf


Well, not to split hairs or anything, but according to the tech document it supports DDR3 SD @ 667. So dual data rate would be 1334 not 1333. The PR stuff that is found on their site sometimes differs from their tech documents.
Edited by BlackOmega - 2/8/10 at 11:04pm
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post #4659 of 9641
Quote:
Originally Posted by BlackOmega View Post
Here's the direct link: http://support.amd.com/us/Processor_...S_3.04_PUB.pdf


Well, not to split hairs or anything, but accorind to the tech document it supports DDR3 SD @ 667. So dual data rate would be 1334 not 1333. The PR stuff that is found on their site sometimes differs from their tech documents.
LOL----No, they round it off. Tell me this... Have you EVER seen any MFR sell Memory Rated at Speeds 1334mhz? I haven't...

For DDR3 There are 1066, 1333, 1600, 1800, 1866, 2000 & 2133. This is what you said that i was referring to anyhow....

Quote:
The integrated memory controller (IMC) on c2 revision cpus' is limited to 1334 MHz and the C3's seem to be 1600
They BOTH "Officially" Support a "Max" of 1333mhz.

Quote:
PS: If you do decide to mount it, DO NOT stick the backplate to the board. Made that mistake on a 939 board of mine. Never again. Had to cut it off.
I use an Apogee GT on mine...
Edited by Mastiffman - 2/8/10 at 11:12pm
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post #4660 of 9641
Quote:
Originally Posted by Mastiffman View Post
LOL----No, they round it off. Tell me this... Have you EVER seen any MFR sell Memory Rated at Speeds 1334mhz? I haven't...
It's not that they sell anything of the sort, which they obviously don't; rather, that is what the integrated memory controller supports according to AMD. They probably did that due to reference clock(FSB) fluctuation.
Quote:
Originally Posted by Mastiffman View Post
They BOTH "Officially" Support a "Max" of 1333mhz.
My mistake on the C3, I thought it supported higher frequencies.
Edited by BlackOmega - 2/8/10 at 11:35pm
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