Looking to line out a dual hexie (Istanbul)

This thread is Spectacular:up: and full of Gigagurgle Goodness:shocked:

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Originally Posted by Chumbucket843

do you think you have enough ram to run games?

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Yes, I've been playing some games on it. Take note that Arma II does run with just one CPU installed with this amount of RAM, so I don't think that's the culprit.

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Originally Posted by Particle

Thanks, Frodin. I too am hoping for some 800-series chipset boards this fall. As for Arma II, I have a bit of bad news there. It appears to be bugged out--it won't run with 12 cores in a system. It'll run with 6 cores/1 CPU just fine and a guy on a skulltrail system can run it (2 quads), but with 12 cores it just dies when the menu should be loading up.

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That sounds like a BI-studios game, allright:rolleyes: They make spectacular games and engines that scale amazingly with hardware, but there are all sorts of crazy bugs. They get most of them fixed in a few patches, though.
That's another reason I'm a little weary of CPUs that don't have cores by the power of two, quite a few programs do not seem to utilize the cores appropriately when there aren't 2/4/8/16 etc cores.

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Originally Posted by Chumbucket843

do you think you have enough ram to run games?

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Arma II uses incredibly small amounts of ram, at least the demo version. I've never seen it use more than 1GB on a 4 GB 64-bit Win 7 system, actually I can't remember seeing it utilize much more than 800 MB. With only 2 GB he'll probably experience a lot of page file usage in other games, though. He did say he'd get the ram addressed (:ROTF:) in a few days.

I've got 4GB for now, Frodin. One 2GB dimm (per CPU). The extra RAM will provide some extra capacity but also allow me to go dual channel.

Ah, sorry, must have overlooked that. Still, it'll be interesting to see whether dual channel makes much of a difference, especially with those hexa-cores.

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Originally Posted by Mechromancer

PARTICLE! I have news from the PhenomMsrTweaker thread!

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Originally Posted by kink

@Mechromancer: I don't know what you mean by "Particle", but anyway: Istanbul should be supported, as well as CPUs with even more cores (I think I used a limit of 64 cores) - it's just not implemented in the GUI, but usable in the service. You need to dive into the registry, surf to HKLM\Software\PhenomMsrTweaker and adjust the P0 and P1 strings accordingly - just add the missing multipliers, e.g. change something like "10|10|10|10|1.3|1.2" to "10|10|10|10|10|10|1.3|1.2" (the first values are the core multipliers, the second last one is the core VID and the last one the NB VID). Restart the service or reboot, and the settings should have been applied.

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Give that a try and let us know if the service allows you to change core VID :D. Also, post in that thread so kink knows just who the heck you are. I seriously don't know how he missed your Istanbul thread.:rofl:

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have u seen this particle?

Yes, it's definitely a lead. I'm not sure if it'll be able to exceed MaxVID (I don't know where the input rejection comes in--OS layer, power management layer, or lower [maybe even physical?]). I also still have to sort the problem of the program outright crashing on startup.

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Originally Posted by Particle

Yes, it's definitely a lead. I'm not sure if it'll be able to exceed MaxVID (I don't know where the input rejection comes in--OS layer, power management layer, or lower [maybe even physical?]). I also still have to sort the problem of the program outright crashing on startup.

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It seems you need to send kink a PM about his program there. I'm sure he would appreciate your input as you're our native Istanbul owner. I think you can get some productive work done with him:yepp:.

I'm giddy just thinking about what you'll be able to accomplish when you get that program up and running for you. Also, Kink suggests making the modification directly in the registry. You should see PhenomMsrTweaker as a service when you type "services.msc" in the run menu. Disregard the GUI and head straight for the registry like a pro :D.

stuff still crashing on startup? man what's with that? chipset drivers? chipset is cool? idk why stuff crashes for u so much.

have you thought about quad socket for a new mobo? they support a whopping 128 gigs of memory

128 GB of fast ECC/REG memory will cost more than the mobo.

Also the cpu's will easily fetch about 2000 each.

http://www.newegg.com/Product/Produc...82E16819105255
http://www.newegg.com/Product/Produc...e=&srchInDesc=
im not saying buy 128 gigs but it would be totally hardcore if he bought $2k worth of ram! non techies would think its the fastest computer ever

That cpu is a 2p, not 4/8p

The 4/8p ones are usually the 8xxx series ones. They're easily over 1000 each.

Opteron 2435 + Particles HTT overclock and you'd have 3 Gig Istanbul ;) that would be sweet!

Thanks to justapost's help, my situation has become clear:

MaxVID is controlled by a read-only register: MSRC001_0071

The processor itself references any change to the current VID register against that one and the following takes place before signaling a change to the voltage controller:

If MaxVID < NewVID Then CurrentVID = MaxVID
ElseIf MinVID > NewVID Then CurrentVID = MinVID
Else CurrentVID = NewVID

Only processors with a MaxVID/MinVID of 00h are allowed to set to anything [except for 0V].

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Anyone want to help me figure out a hardware mod? Perhaps it could be as simple as a pencil trick?

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Originally Posted by Nedjo

Opteron 2435 + Particles HTT overclock and you'd have 3 Gig Istanbul ;) that would be sweet!

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i think it will be possible :up:

if it had that unlocking multipliers, it would be easy.. I could bet on 3,5ghz :D

but otherwise 3ghz sounds realistic

Dang that sucks on the voltage being a processor hardware limitation. Hopefully someone on here will know of a mod you can do to the CPU or board.

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Originally Posted by Particle

Thanks to justapost's help, my situation has become clear:

MaxVID is controlled by a read-only register: MSRC001_0071

The processor itself references any change to the current VID register against that one and the following takes place before signaling a change to the voltage controller:

If MaxVID < NewVID Then CurrentVID = MaxVID
ElseIf MinVID > NewVID Then CurrentVID = MinVID
Else CurrentVID = NewVID

Only processors with a MaxVID/MinVID of 00h are allowed to set to anything [except for 0V].

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Anyone want to help me figure out a hardware mod? Perhaps it could be as simple as a pencil trick?

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That is absolutely horrible! I suppose PhenomMsrTweaker WON'T be the solution to your problem anytime soon. Goodluck with the volt modding.

Guess it makes sense that the voltage would be locked on server chips.
I'm sure they don't want some shady companies overclocking and selling rack systems at a higher price that may be prone to failure....

Good luck with the hardware mod, looks like the only option for now. :(

Just curious, did you ask justapost about the addy of the NBvid?
It's probably locked too, but it wouldn't hurt to try... ;)

He pointed me to the right documentation, but I looked it up myself. As such, I'll see what I can find since I know where to look now. :D

It appears as if the NB is subject to the same MaxVID and MinVID as the processor itself. At least this means I should be able to jack the NB to 1.225V if nothing else. It defaults to 1.1x. Who knows if that's what was actually becoming unstable instead of my cores. They clock synchronously on my system. CPU Clock = NB Clock

There are a lot of Phenoms that dont like NB higher than 2.4-2.6 range, so it easily could be the problem on these 6 core chips.

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Originally Posted by Particle

He pointed me to the right documentation, but I looked it up myself. As such, I'll see what I can find since I know where to look now. :D

It appears as if the NB is subject to the same MaxVID and MinVID as the processor itself. At least this means I should be able to jack the NB to 1.225V if nothing else. It defaults to 1.1x. Who knows if that's what was actually becoming unstable instead of my cores. They clock synchronously on my system. CPU Clock = NB Clock

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Also you can use a lower NB multi, check the BKDG there are pci registers for NB and HT speed whom you can change with bar edit. Dave did that 07 on an dual barcelona board with an broadcom chipset.

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Originally Posted by EniGmA1987

There are a lot of Phenoms that dont like NB higher than 2.4-2.6 range, so it easily could be the problem on these 6 core chips.

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This :rolleyes:

My one can't do more than 2398MHz on default 1.175V
CPU is fine at 3GHz and 1.15V :)

If you can lower NB multi that will definitely gain you some MHz :up:

I know that attempts were done in ASUS L1N board thread ...
Hope it helps :)

As I recall, changing the NB divisor didn't actually change me, but that was really early in this project. I'll try again when I get home and see what happens.

That's already promising though for the quality of this silicon if my NB works fine at default VID (1.175V) at over 2.5GHz.

Wow, there's some really neat information in here. Good bye speculations of yesteryear--here are the required frequency relationships between NB and CPU:

- CPU can not run below 400 MHz
- NB frequency must obey: >= half of CPU Frequency AND <= 32 * CPU Frequency

So with a CPU frequency of 4000 MHz, the NB theoretically must be between 2000 MHz and 128,000 MHz. (Not that the silicon itself would do that upper limit, but it's required for the logic. This max is effectively a non-issue.)