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This is Fusion = AMD A8-3500m and AMD 6750m on HP Pavilion dv6-6135dx - Page 2

post #11 of 20
rep+, I can't see the pics at work but looks like you spent some time doing this. Good work thumb.gif
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post #12 of 20
Thread Starter 
Well the samsung ram defaults to 1333 speeds, I can't get 1600 rated speeds out of these, I can't understand why they even put lower profiles on them, if they sell them as 1600 then that should be the only profile they support not anything lower for compatibility, so of coarse the HP bios default to the "safe" profile and won't load the good one.


Quote:
Originally Posted by FunAndJokes View Post

How do you get this xpress mode? did you use modded bios?
And you can overclock it to 3.0ghz it can handle

Hi, yes I have modded bios running, the link is at the top,, I have been preoccupied with other things lately but I am going to get the max o.c. soon , I haven't been putting much time into the laptop since I got the 2500k and tuning that. I am currently on windows8 with the laptop as well, and I don't think that it is a good environment to be testing o.c. with as I have stability problems with the power state as it is. Sometimes the laptop will just hang with windows giving an error with a sad face and a code, must be the new bsod screen.

I will be going back to win 7 soon enough and continue some testing on Llano, with best case scenario frame rates and settings across a few games.

If anybody has any games that they would like configured and ran, please let me know, I have many but I might not have the one your looking for though..


Continued in a few days.
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post #13 of 20

YIKES.  You'll want to get rid of the single channel 4 + 2GB memory setup and replacing it (I don't know where you get the info that allows you to make the claim "dual channel" with a 4 + 2GB setup because it is simply not possible).  On a top end A8 APU, that would be significantly restricting your performance as both the CPU & GPU access system RAM and consume a LOT of bandwidth.  I reckon your results are as much as 50-70% behind what they should be at with a dual channel memory setup.  There is already a 20-50% loss on the desktop A8 APU when going down from DDR3-1600 to 1066-1333.  That's just RAM speed.  This is single vs dual channel; halving your actual maximum throughput.

 

This is why your overclocked A8 isn't netting you too much extra in 3DMark.... heck, it looks like, if I'm not mistaken, your Heaven benchmark result went DOWN with your overclock.  Get some better RAM and remove this bottleneck!


Edited by xd_1771 - 3/23/12 at 2:23am
post #14 of 20
Thread Starter 
Quote:
Originally Posted by xd_1771 View Post

YIKES.  You'll want to get rid of the single channel 4 + 2GB memory setup and replacing it (I don't know where you get the info that allows you to make the claim "dual channel" with a 4 + 2GB setup because it is simply not possible).  On a top end A8 APU, that would be significantly restricting your performance as both the CPU & GPU access system RAM and consume a LOT of bandwidth.  I reckon your results are as much as 50-70% behind what they should be at with a dual channel memory setup.  There is already a 20-50% loss on the desktop A8 APU when going down from DDR3-1600 to 1066-1333.  That's just RAM speed.  This is single vs dual channel; halving your actual maximum throughput.

This is why your overclocked A8 isn't netting you too much extra in 3DMark.... heck, it looks like, if I'm not mistaken, your Heaven benchmark result went DOWN with your overclock.  Get some better RAM and remove this bottleneck!


Well I hate to rain on your parade and I write this with all due respect towards a retired staff, but it is in fact in dual channel mode with the 6Gb of ram. You see when both slot one with 4Gb (channel A) and slot two with 2Gb (channel B) are populated the ram defaults to dual channel. If I had to actually research that to know or make a "claim" I would point you in that direction, but I don't its common sense. 18,000 posts and you learn something new every day.
"We know nothing at all. All our knowledge is but the knowledge of schoolchildren. The real nature of things we shall never know." - Albert Einstein

You are correct in fact that the APU does rely on memory very much in games but I don't think i'm being held back 50-70% because of my ram, I know, I've done my homework, I bought one of these APU's and I didn't go into it blindly. My hopes were to increase its potential by adding some 1600Mhz ram, (of coarse in dual channel) but sadly it stayed at 1333, I made out some with memory speeds and latency as well it increased the memory cache on the APU itself adding the Samsung, I'm happy with that at least I guess. So it seems I'm stuck with the memory where it is, I'm not sure if the auto o.c. stuff that corsair sells would do it either, my bios locks seems to lock it at 1333, all I can do is blame HP in the end as they put this artificial restriction on the APU by using cheap ram . I would agree that I am being held back with the APU and stuck at 1333 vs 1600 but not by such a significant amount.

Stock ram 4Gb + 2Gb in dual channel.
stockmem.png

Samsung ram 4Gb +4Gb in dual channel.
samsungmem.png
Edited by JieMan - 4/9/12 at 8:33pm
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post #15 of 20
I just wanted to bump this thread...I have the HP dv6-6135 with this same setup, the A8-3500 with 6570m / 6620g. I have had a lot of trouble figuring out the ideal setup to get the most out of this laptop.

I'm just wondering if you've done any more benchmarking? Have you tried Skyrim, The Witcher 2, or some free to play Steam games like Super Monday Night Combat or All Points Bulletin?

I recently updated to the Catalyst 12.4 drivers, and seemed to lose a lot of performance. After messing around with settings all day, I ended up flashing the advanced BIOS so I could set it to PowerXpress mode, and manually set the 6750m to be used. This seemed to slightly improve performance, but also make the system unstable. For example usually I could alt-tab out of Skyrim easily, but doing this twice after setting it like this, my whole system locked up.

A crossfire setup, on the other hand, seems to lead to this microstutter problem...If I'm standing still the FPS is pretty good in games, but if I spin my character or something, it momentarily drops...or for example if I spin in circles, it sill skip like once every time around. I'm guessing this might be the computer switching between cards? so it seems like just using the 6750 alone for gaming is better...but less stable?

Any thoughts would be appreciated..I'm just about to look into overclocking the CPU and/or GPU as well, and i might post some benchmarks soon.
post #16 of 20
I've got the 3510mx with the 6620G and I've OC'd mine to 3.0ghz so far and broke 4 points in Cinebench 11.5 smile.gif
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post #17 of 20
Also, does anyone know how difficult it would be to add the 6750M to my board, since I have the exact same board? I've heard it's soldered to the board, but if it's not I'd love to pick one up to mess with it. I think I might just give this laptop to my gf for her birthday and buy something higher end if I can't upgrade this one.

I have the 8GB model btw, and I've added my 256GB Crucial M4 temporarily until my other SSD arrives smile.gif
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post #18 of 20
I was just playing Modern Warfare 3 with an xbox 360 controller (after I found an app to make it functional since its not supported by default). I was getting around 35 fps minimum and 60 fps max @ 1366x768 maxed out with 0 MSAA. Still a very nice result considering I paid $450 for the laptop. I also noticed that the overclock to 2.8-3.0ghz REALLY helped the frames. I think the largest bottleneck on that laptop is the CPU speed being so low. Especially since the resolution is so low, the CPU becomes much more of a factor and the OC really gave that away.

Either way, I never expected to be able to purchase a viable gaming laptop for under $500. It was a refurb, and retails for $1k but still it's a hell of a deal no doubt. I'll be giving this one to my gf and grabbing the more expensive version with the 6755G2 dual graphics, and use the 6750M as the main single GPU for gaming wink.gif
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post #19 of 20
Quote:
Originally Posted by m3t4lh34d View Post

I was just playing Modern Warfare 3 with an xbox 360 controller (after I found an app to make it functional since its not supported by default). I was getting around 35 fps minimum and 60 fps max @ 1366x768 maxed out with 0 MSAA. Still a very nice result considering I paid $450 for the laptop. I also noticed that the overclock to 2.8-3.0ghz REALLY helped the frames. I think the largest bottleneck on that laptop is the CPU speed being so low. Especially since the resolution is so low, the CPU becomes much more of a factor and the OC really gave that away.
Either way, I never expected to be able to purchase a viable gaming laptop for under $500. It was a refurb, and retails for $1k but still it's a hell of a deal no doubt. I'll be giving this one to my gf and grabbing the more expensive version with the 6755G2 dual graphics, and use the 6750M as the main single GPU for gaming wink.gif
6755G2 is the 6750m + 6620G right?
post #20 of 20
I want to see some GPU overclocking as well. With a 3 GHz cpu, and both GPUs running at 600-700 MHz each, I really wonder how it would perform.
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