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MSI Lab Burst Mode: What's going on?

post #1 of 5
Thread Starter 
I've been playing with the following:

MSI A55M-P33
A4-3400
2x 4GB Ripjaws X 1600 (CL9)
Refurb OCZ Agility 2 60GB

... and a $30 case+PSU made this a big "win" on a budget to me.

As happy as I should be for what this can do out of the box at <$200,
I, of course, am after it's very best as an OCer.


After a short bit of messing with BIOS,
I find the only way of clocking up anything is with the use of "Lab Burst Mode".
MSI's own little setting,
which I've read is to apply straps to un-seen peripherals when the base clock gets to 133Mhz+.

Well, it certainly sets the reference frequency loose,
as I've managed a stress-stable system on a 165Mhz core reference.
This allows me to run:

CPU @ 4460Mhz
iGPU @ 990Mhz
RAM @ 2200Mhz (9-9-9-24 1T)

Great, right?
Stock voltages for the CPU and NB make it kinda unbelievable. (1.65v for RAM, tho)
And even better that the benchmarks reflect it, too.
Unlike other known "fake OCs" with locked APU.


Now upon entering the real-world of PC usage,
I find one very apparent issue when watching videos:

They play at a sporadic ~65-80fps instead of 60fps.
And I do see sort of "micro-stutters" now and again in the videos.

I can confirm that "Lab Burst Mode" is solely responsible,
as BIOS at default otherwise will still cause this issue.





My questions are these:

What is "Lab Burst Mode" doing to break the FPS limits like nothing I've seen before?
If you don't know, could you guess...?

Is there anything I could do that may fix/counter this behavior?

And finally--

How can I rightfully confirm my OCs are true?
Benchmarks and wristwatches are lining up as I'm told they would not if fake,
but I'm having trouble believing it completely.


Thanks for any and all help. smile.gif
Edited by Rezard - 3/28/13 at 9:33pm
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post #2 of 5
I find it very difficult to believe you overclocked an APU by almost 2GHz on stock voltage. And that RAM probably requires CL10 to even break 2000MHz.
 
Wild eyes (2015)
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Wild eyes (2015)
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post #3 of 5
Thread Starter 
lol ikr

Would posting some screenies help you believe I'm not BSing...?

I understand it's either fake, or truely a "silicon lottery" jackpot.

I guess I'm just hoping to find some way to see, without a doubt,
that the performance is not there.

But every step of OCing CPU, iGPU or RAM showed gains.
And, yes-- even tightening the timings improved things.

And the USB 2.0 and SATA II have shown considerable increases.
In both benchmarks, and real-world file transfers.

I just have to see evidence it's false at this point.
The FPS thing seems it could just be some mis-ajustment of some system clock... but IDK I guess, either.

Here's MaxxMem results.

First is the 2400Mhz 9-9-9-24 that's shown stable...

MaxxMEM2_g1112.jpg 60k .jpg file

... and here's 8-8-8-24 which does end up with errors on MemTest....

MaxxMEM2_n0703.jpg 60k .jpg file

But you see it shows, right?

These DIMMs didn't do this well with 2 other boards and APUs,
but my Samsung 30nm did.
On this setup, it's the other way around.
Almost as if these Ripjaws and mobo/APU are soul mates or something... (lol)
Edited by Rezard - 3/28/13 at 10:47pm
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CPUMotherboardGraphicsRAM
a4-3400 GAA75M-DS2 Radeon HD 6410D Samsung 30nm 
Hard DriveHard DriveOptical DriveCooling
OCZ Agility 2 WD Caviar Green DVD-R/W Cooler Master Vortex Plus 
CoolingCoolingCoolingCooling
2x SilenX 60mm Ixtrema SilenX 80mm Red LED Effizio SilenX 80mm Ixtrema Rosewill 90mm PCI slot fan 
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Quantum
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First Knight
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MiniMicro
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CPUMotherboardGraphicsGraphics
A8-3870K @ 3.5Ghz Gigabyte GA-A75-UD4H Radeon HD 6550D Radeon HD 6670 (GDDR5) 
RAMHard DriveOptical DriveCooling
Trident X DDR3 2400 Mushkin Cronos Deluxe Asus Black DVD-RW Xigmatek Gaia (XAF) 
CoolingOSMonitorPower
G.Skill Turbulence II Windows 7 x64 32" LCD TV Rosewill HIVE 550W 
Case
Lian Li PC-K65 
CPUMotherboardGraphicsRAM
a4-3400 GAA75M-DS2 Radeon HD 6410D Samsung 30nm 
Hard DriveHard DriveOptical DriveCooling
OCZ Agility 2 WD Caviar Green DVD-R/W Cooler Master Vortex Plus 
CoolingCoolingCoolingCooling
2x SilenX 60mm Ixtrema SilenX 80mm Red LED Effizio SilenX 80mm Ixtrema Rosewill 90mm PCI slot fan 
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post #4 of 5
Quote:
Originally Posted by Rezard View Post

lol ikr

Would posting some screenies help you believe I'm not BSing...?

I understand it's either fake, or truely a "silicon lottery" jackpot.

I guess I'm just hoping to find some way to see, without a doubt,
that the performance is not there.

But every step of OCing CPU, iGPU or RAM showed gains.
And, yes-- even tightening the timings improved things.

And the USB 2.0 and SATA II have shown considerable increases.
In both benchmarks, and real-world file transfers.

I just have to see evidence it's false at this point.
The FPS thing seems it could just be some mis-ajustment of some system clock... but IDK I guess, either.

Here's MaxxMem results.

First is the 2400Mhz 9-9-9-24 that's shown stable...

MaxxMEM2_g1112.jpg 60k .jpg file

... and here's 8-8-8-24 which does end up with errors on MemTest....

MaxxMEM2_n0703.jpg 60k .jpg file

But you see it shows, right?

These DIMMs didn't do this well with 2 other boards and APUs,
but my Samsung 30nm did.
On this setup, it's the other way around.
Almost as if these Ripjaws and mobo/APU are soul mates or something... (lol)

I think, if this is true, that you hit some sort of jackpot on components. eh-smiley.gif I must say that I am confused as to how this could happen...
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post #5 of 5
Thread Starter 
Quote:
Originally Posted by Terrere View Post

I think, if this is true, ...

See, that's what I'm saying.
How do I find out?

Even for myself, at this point,
but I'm obviously facing a lot of people questioning it,

I was really hoping to get some ideas, honestly.
Quantum
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MiniMicro
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A8-3870K @ 3.5Ghz Gigabyte GA-A75-UD4H Radeon HD 6550D Radeon HD 6670 (GDDR5) 
RAMHard DriveOptical DriveCooling
Trident X DDR3 2400 Mushkin Cronos Deluxe Asus Black DVD-RW Xigmatek Gaia (XAF) 
CoolingOSMonitorPower
G.Skill Turbulence II Windows 7 x64 32" LCD TV Rosewill HIVE 550W 
Case
Lian Li PC-K65 
CPUMotherboardGraphicsRAM
a4-3400 GAA75M-DS2 Radeon HD 6410D Samsung 30nm 
Hard DriveHard DriveOptical DriveCooling
OCZ Agility 2 WD Caviar Green DVD-R/W Cooler Master Vortex Plus 
CoolingCoolingCoolingCooling
2x SilenX 60mm Ixtrema SilenX 80mm Red LED Effizio SilenX 80mm Ixtrema Rosewill 90mm PCI slot fan 
CoolingMonitorPowerCase
2x 50mm Whatever it's near Top Power 400W Top Power 1600 Series 
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Reply
Quantum
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First Knight
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CPUMotherboardGraphicsGraphics
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RAMHard DriveOptical DriveCooling
Trident X DDR3 2400 Mushkin Cronos Deluxe Asus Black DVD-RW Xigmatek Gaia (XAF) 
CoolingOSMonitorPower
G.Skill Turbulence II Windows 7 x64 32" LCD TV Rosewill HIVE 550W 
Case
Lian Li PC-K65 
CPUMotherboardGraphicsRAM
a4-3400 GAA75M-DS2 Radeon HD 6410D Samsung 30nm 
Hard DriveHard DriveOptical DriveCooling
OCZ Agility 2 WD Caviar Green DVD-R/W Cooler Master Vortex Plus 
CoolingCoolingCoolingCooling
2x SilenX 60mm Ixtrema SilenX 80mm Red LED Effizio SilenX 80mm Ixtrema Rosewill 90mm PCI slot fan 
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2x 50mm Whatever it's near Top Power 400W Top Power 1600 Series 
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