OLD - USE NEW POST - MK808b FAQ's, includes 1080p

[ididmytime]

You cant compare quads with dual cores since they are made on a different process (40nm vs 28nm). So while 1.6Ghz for the CPU is within specs and should be rock stable with the right appropriate size heatsink, 500Mhz for the GPU will be quite an overclock.

Also the reason why often an overclock yields less performance gain is because something else becomes a bottleneck. Like with the Pentium 4's where they were running well over 4Ghz but still got blown away by AMD just because the front side bus couldn't keep up.

With these sticks i dont know what would be the limiting factor. It's a SOC so communication between components should be quite good. It's DDR3 memory (at 1066mhz even with an OC kernel) which should me more than enough if you compare overal performance of these sticks. So that would mean that the CPU would be holding the GPU back or the GPU holding the CPU back.
So as long as you overclock both i think you should still see very nice gains.

For example my UG007-II with 1080p UG802 kernel (466Mhz GPU and 1608 CPU) does 35,4FPS in Epic Citadel and 10453 in Antutu (that's with a 1080p kernel)

I currently think 40nm on these devices are comparable to 28nm, as the heat really isn't an issue, and the extra power saved has no real affect. Although they potentially open up for a bigger overclock, I still think I could push my device much, much more. I have no illusion that all devices are equal, some don't even come with a heatsink, but I seem fortunate that mine really isn't getting hot (but then, I guess not many mk808b's are being overclocked).

I'm curious to know your 2d/3d score in Antutu with that kernel.

[Abducted]

I'll make a screenshot later.

BTW about 10 years ago i was very active on an overclocking forum. Often when guys said. "I have a very good cooler, it's not getting hot at all!!" that simply meant their heatsink wasn't seated properly and the heat from the CPU just wasn't transferring to the heatsink like it should.

Now im not saying this is the case for you, but if you're using the 2Dark4U kernel with performance governor and it's not getting hot (on the outside i assume you mean), one must wonder...


BTW my MK808 has a heartbeat again. Hopefully i can fully get it back up and running.

[ididmytime]

I'll make a screenshot later.

BTW about 10 years ago i was very active on an overclocking forum. Often when guys said. "I have a very good cooler, it's not getting hot at all!!" that simply meant their heatsink wasn't seated properly and the heat from the CPU just wasn't transferring to the heatsink like it should.

Now im not saying this is the case for you, but if you're using the 2Dark4U kernel with performance governor and it's not getting hot (on the outside i assume you mean), one must wonder...


BTW my MK808 has a heartbeat again. Hopefully i can fully get it back up and running.

I guess saying 'it's not getting hot' is probably selling it a bit much. It does get warm, but no more than my phone does when running on load, in fact my phone gets much hotter. I have had zero freezing, artifacts or any sign of overheating. I did get an instant reboot trying to run at 1.6 on a benchmark, but the GPU was the main problem, I think the CPU speed is fine so more than happy to keep it at 1.4ghz.

Congratulations on the MK808, how did you get that up and running? heatgun?

[UnicornKaz]

Q: Can I overclock the CPU?

A: SetCPU will overclock it up to 1.4ghz for the original mk808b, and 1.2ghz for the cloned version, bare in mind your device will run hotter so make sure you have cooling to compensate the extra heat. You will need to set the cpu to performance to achieve this, as the device has a built in 1ghz limiter which can only be bypassed doing this. It will still say you are running at 1ghz, but a quick Linpack test will show the overclock has worked. Most devices the max overclock is around 1.5ghz on a custom kernel, so you're not missing out by using the stock kernel for CPU overclocking.

then why does the MK808B is advertised at geekbuying as "1.6GHZ" ?? ( scroll down to the specifications )

http://www.geekbuying.com/item/MK808...ck-313213.html


Thanks for a great FAQ, sure comes in handy!

[ididmytime]

then why does the MK808B is advertised at geekbuying as "1.6GHZ" ?? ( scroll down to the specifications )

http://www.geekbuying.com/item/MK808...ck-313213.html


Thanks for a great FAQ, sure comes in handy!

Notice how they don't say CPU speed?

They include both the CPU + GPU speed to make 1.6ghz, very misleading.

[resor]

Odp: MK808b FAQ's, includes 1080p and XBMC guides/recommendations (New users read this).

its a goddamn 45 usd stick with 8k antutu stock rom, you expect what exactly?

[dankec]

its a goddamn 45 usd stick with 8k antutu stock rom, you expect what exactly?

Only what is advertised! And it's not 45usd, you have to add wireless keyboard, mouse and HUB. This is a must.

[resor]

Odp: MK808b FAQ's, includes 1080p and XBMC guides/recommendations (New users read this).

i got only mouse so its not a must

[Abducted]

Hehe, yeah i have to agree those are not a must. A simple old wireless (or even wired) USB mouse and keyboard will work.

Of course it's bull$hit that they advertise it like that. The problem is if one person/store advertises it like that, there is no way others aren't going to do the same. When i bought my stick i pretty much had no clue what i had to look for when comparing these sticks. I got the UG007-II because it had an extra micro-USB port and a reset button!!! Turns out the MK808 (and many others) already had that the whole time...
Also if one stick (or store) would be advertised as 1,2Ghz and the other as 1,6Ghz i'm quite sure i would have gone with the 1.6Ghz version.

[Abducted]

Oke better late than never i guess. A screenshot of my UG007II with 1080p 2Dark4U UG802 kernel (CPU:1608Mhz, GPU: 466Mhz, RAM:1120Mhz). Governor at performance and I/O at NOOP.

BTW i noticed you forgot to hide your status bar in your benchmarks so they ran at 1280x672 or 1920x1032. I don't think that will have much effect on the results but i run my benchmarks with hidden status bar so 1920x1080 resolution.




I have the same (weird) very high SD card score except for me it's the write speed. Maybe 2Dark4U build in a write cache and maybe Antutu only tests small files. But that wouldn't explain your high read speed though... So maybe we should just subtract 100 points for that.

My 2D scores are even a little lower and the 3D scores are basicly the same. Not sure if that's because of the different resolution or maybe, like you said, the GPU is held back by something, and overclocking it more doesn't increase performance.

Also a EPIC Citadel screenshot:

[ididmytime]

I mentioned in the post that it wasn't it in full screen mode, so may score slightly higher, but when you said you have got Epic Citadel to run at 35fps compared to my 28fps I was curious to see if your GPU was running better than mine.

Considering the raw GPU scores are near same, and how difficult it is to get most devices to overclock much higher than 1.5ghz for the CPU, it's a pretty safe bet to assume that using 533mhz for the GPU on 1080p (perhaps 720p) will be near useless, because the CPU is clearly holding it back. Is it worth pushing the CPU much higher? probably not.

Perhaps this is the sole reason the GPU is clocked so low, as realistically only video decoding may benefit, but unless you use XBMC you don't need the GPU that high, as external players play it pretty well already, even on stock 1080p with moderate 1080p content.

[Abducted]

Well about the GPU being clock so low by default (since it's enough to playback 1080p with most players) might be very true. However for XBMC but also for general 3D gaming a faster GPU definitely makes a difference. Stock 1080p in Epic citadel 27,2FPS vs 36,1FPS with OC kernel. That's quite a difference.

Also you're now basically saying Antutu is THE benchmark to measure 3D performance and since our score is about the same there that would mean our 3D performance in general is the same. However i would say Epic Citadel is a MUCH more real life and better 3D benchmark. I guess Futuremark's benchmark should be quite reliable too, but i have to say for the quality of the 3D it runs at a rather low framerate. But i haven't run that on my UG007II yet. I'll give that a try too.

[ididmytime]

Antutu has a pretty good GPU test in it, and is usually pretty reliable with it.

The Ice Extreme benchmark is an absolute crippler, even with the CPU overclock I can't see it doing much more.

Nobody really should of bought these devices for gaming. The only gaming I will do will be via emulation, which is mainly CPU dependent. I don't really play any Android games considering I have a decent PC. I wonder how many actually run in native 1080p?

Think I will stick with 1.4 unless some clever people work out mk808b kernels, and wait until we have a significant upgrade in hardware (probably won't happen for ages). The new quads are too expensive, have the same GPU, and I'm not sure if XBMC supports it, or if it's going to be like the mk802's.

[big10p]

Ethernet Fix/Work Around.

For several roms, if you use an Ethernet adapter, you will not be able to get an IP on reboot. In order to get Ethernet working again, you would have to toggle or reconnect the device. This is not ideal, especially if you use Wifi remotes.

Credit goes to b1g.p0ppa for the commands. I do not claim to be a dev, nor believe this is the proper way to fix this, but it does indeed work. I take no responsibility for your device. This is currently for Finless only, can be made to work on other roms.

You will need this file.

Extract the zip, then place the 01script using a file manager with root permissions in system/ect/init.d.

Reboot, it may take a few seconds after boot to get a connection, depending on what you have running. Congratulations, you can now use Ethernet without toggling off and on.

Issues.

1. The rkremote doesn't work sometimes, other wifi remotes are fine.
2. Breaks some Wifi direct programs (can use FTP Server Ultimate and run as a service to Wifi files over at any time).
3. Do NOT use when Wifi is enabled, it will constantly turn Wifi on and off causing havoc.
4. Sometimes going into the settings causes the Ethernet to turn on and off until you have left.

This fix doesn't work for me. Infact, it doesn't seem to do anything at all. Is anyone able to shed some light on this as I'd really like to get my ethernet to connect on boot.

I have an MK809II with Finless 1.7a 1080p ROM.

Thanks

[snipez]

ididmytime, I followed this guide completely through and through... great work as it is a great one stop shop for newbie resources.

I was able to get a stream from my PC to run great with few dropped frames on 1080p through MX Player, however when I use XAF, the stream is considerably choppier. I was using XAF Neon for set top. Have you seen this before?

I loaded MX prior to installing XAF, so I'm assuming its using MX to play the content?