yashsingh1/xdaforums huggingface dataset:
[Defy General] kneepain:
Thanks for all you guys doing this great job.

I'm now using:

10/80 - extremely power saving

35700

52/1000

Check the "limit to vsel1 when screen is off.
[Defy General] rockeroll:
22/300

39/600

52/1000
[Defy General] henno88:
18/300

36/700

60/1200

up_threshold 70

very fast with CM7
[Defy General] YahsCE:
what are the default values from cm7? including the vsel
[Defy General] fiqir:
got default setting, choose that.
[Defy General] kneepain:
I've tried the two extremes:

80/10

1350/64

(63 will reboot)

without any problem.
[Defy General] YahsCE:
is because i don´t have cm7 and i want to know so i can put it in wajkiui rom..
[Defy General] Vaizen:
I'm on 300/16 600/28 1000/52 testing by now but you know best, is this a good config for battery life without loss of performance or which one do you recommend for this purpose

Edit: i'm on defy red lens, cm7.1 stable mod, and my phone temps are always 35-37 degrees celcius, are these vsels making my phone overheat or how do i achieve lower temperatures?
[Defy General] manoutch:
300/16

550/29

750/37

1050/52

with cm7.2 nightly defy+

300/15 made it reboot for me
[Defy General] King_Rat:
22/300

36/700

58/1265

81% up_threshold

temp. ranges from 28C to 35C - usually depends on hot or cold weather <<= TempMonitor Lite app ;)

peaked @ 17.784 mflops [linpack lets me compare my setting changes against prior configurations... not against a Nexus One!?] :lol:

What do other menu settings do in Setsvel app?

i.e. - Ultra fast reboot, Unload Overclock.ko...

PS - How to keep JIT enabled permanently <<= it seems to disable it-self for no reason ^^ have to keep enabling it manually.
[Defy General] Karsto:
Great thread! I have been trying different settings but my Defy kept freezing up in the vsel1 CPU+GPU Full Details stability test. I thought my settings were too low but then I tried the same test with default 33/300 setting and it crashed around the same time. (Crash log below.)

Are others crashing in the CPU+GPU test? Which is the best test(s) to run to be certain you are stable at a given setting.

---------------

It looks like StabilityTest crashed unexpectedly or your device rebooted. The following information were gathered right before the event occured:

cores: 0

bogomips: 299.11

load: 17.17

temperature: 26.0°C

# passed test runs (cpu): 13

# passed test runs (gpu): 192

# gpu errors: 0

runtime: 01:18:02

system log:

--------- beginning of /dev/log/system

E/ActivityThread( 4283): Failed to find provider info for com.maxmpz.audioplayer

..... (etc....)
[Defy General] King_Rat:
JIT not holding

Running MIUI - 2.2.17 / 2.2.10 prior & JIT no longer holds?

i.e. I'll enable JIT & more often than not when I re-enter setvsel it is disabled?!

occasionally it will stay set...
[Defy General] yamandude:
:)

My signature ;)

Wanted to know if the minimum setting can go any lower without any problem ?
[Defy General] bds bamrah:
Y shud vsel1 be 300?? And nt less??
[Defy General] King_Rat:
Apparently (not proven by me) ph is slow to wake up ^^ if you go below 300 :eek:
[Defy General] bds bamrah:
Wat if I set low vsel values??

For say..300mhzz..wat will happen? Will the phn restart? Or will go to next set value..I.e..600mhz??

AWESOMEDEFY@1.1GHZ
[Defy General] yamandude:
You're confusing between the speed and the voltage. ... .

Very low vsel will give hot boots or the phone may not even start !

Very low speed or frequency will make the phone laggy.
[Defy General] Sir Flashalot:
15/300

28/600

38/800

75%
[Defy General] diamond_lover:
300/18

600/30

1200/58 (stable from 57)
[Defy General] Sir Flashalot:
10/80 won't work. You cannot set the proc below 300MHz. Although you can apply this setting for VSel1 in SetVsel, but then only VSel2 and above will be used instead. You can check this with CPU Spy.
[Defy General] killxda:
300=22

600=32

1000=52
[Defy General] bladerara1:
Very stable configuration. Good battery life.

Sent from my MB525
[Defy General] miclav:
24 @ 300

36 @ 600

46 @ 800

56 @ 1000

Not tried yet to decrease vsel to its optimal value (range?, sorry not fluent in English...) So really safe like that for me.
[Defy General] elTorres:
I'm using:

17@300

32@600

38@800

58@1200
[Defy General] Andrei_Q:
My setting:

16/300

26/600

36/800

46/1000

stable so far, Defy with Stock 2.3.6;)
[Defy General] aribis:
of all the ROM i tested till date the best is LiquidArc by JBoogie3 which has given me the highest scores so far of above 2600+ in Quadrant with a configuration of

300@20

600@30

1000@48 (peak OC to 1200@56)

stable, fast, and highly satisfying...so i believe the ROM that you chose to install matters more than your Vsel config
[Defy General] ArielitoARG:
18@300

55@800

70@1300

85% Up_threshold

Quadrant score: 2081

ROM: ICS Quarz 8 Mar.
[Defy General] jekyllove:
300@20

600@33

800@43 (900@48)

1100@58 (1200@60)
[Defy General] kingdragonfly:
i dont think overclock to 1200 is good to the cpu and i cant feel any difference between 1000 and 1200 except the battery life.
[Defy General] King_Rat:
If you can run 1200 @ lower VSel than stock @ 800 - why not!?

19 - 300, 33 - 700, 54 - 1200 ^^

Use on both stock & MIUI...

stock actually gets better battery life ;)
[Defy General] sai391023:
33@300

48@600

65@1200

75%

testing which rom is better:D
[Defy General] sukano1:
22@300

32@600

52@900

running rock-solid under both CM7 and CM9 on green-lensed defy
[Defy General] Born_Bad:
20/300

30/600

36/800

48/1000

could try to go lower on 300 and 600MHz, but i guess it's ok as it is. doesn't make much of a difference. the 20/300 isnt used for deep sleep as i understand it?
[Defy General] mja711:
300 20

650 35

1000 50

threshold 90

I am trying this.... will review and report :)
[Defy General] kofiaa:
Does undervolting really make a difference? my battery life did not improve for me. I'm on stock rom 2.2.1
[Defy General] KarlosEdw:
Why can not set vsel1 < 300 MHz???
[Defy General] MobiDroid™:
phone reboots

hello all,

i just downloaded setvsel from market.

after it installed and gave it superuser acces, the phone rebooted.

whenever i try to open the program now, the phone reboots.

my phone (defy+) is clean with only a BL7 root.

no further mods, only stock apps installed.

MB526 4.5.1-134_DFP-231

GB 2.3.6

how can i get it to work? :rolleyes::confused:
[Defy General] KarlosEdw:
You need root your defy+ to enable the setvsel use ;)
[Defy General] MobiDroid™:
the phone is rooted, read correctly before you reply.................
[Defy General] hamlet1969:
Defy+ overclock between Recovery Bootmenu and Setvsel

hi... please, don't be too aggressive..

so, I too ended up in same scenario.. afterwards, I found out setvsel and overclocking in general have to be enabled from Recovery bootmenu ([custom recovery]/Overclock entry)... but the affair isn't so simple, at least for me

when I learnt how to enable overclocking, I encountered another problem: I initially downloaded release 0.6.1 of Recovery 2ndinit (socalled "stable" in order to install CM ROMs) but the Overclock entry was not in bootmenu at all

I have uninstalled recovery bootmenu and installed release 1.0.7, latest version, of recovery: finally, I found "Overclock" entry in bootmenu and setvsel doesn't make the defy+ reboot anymore, but..

at this point, I :confused: ask you all:

1) what better overclock setting in bootmenu for big but not-so-dangerous performance?

2) what better overclock setting in setvsel for big but not-so-dangerous performance?

3) the 2 setting must be equal or can be not necessarily so?

4) can we use only one method?

5) with recovery 1.0.7 installed, can I use CM ROMs?

Thanks :)

PS: :( sorry for my bad english: I hope my questions can be useful in order to better understand the overclock issue
[Defy General] Ptikjp:
I run the Smartass2 governor...

in order to keep wake up performance snappy

I use the following:

400@22

600@30

1000@52
[Defy General] Scottyy:
I'm currently running on

22@300

42@800

56@1000

Seems stable enough for everyday use :)
[Defy General] Garuxa:
Smartass2? Really?

How you can get that governor on this device with bootloader locked? :confused:
[Defy General] kadopt:
+1
[Defy General] cyrusct82:
Four the ones that are having problems with SETVSEL restart watch this post http://xdaforums.com/showthread.php?t=1645086
[Defy General] gedhe:
Try this one here on xda. Works without any faults on my Defy!

It seems to me that it makes more use of the 2nd frequency in comparison to standard smartass.
[Defy General] adder23:
20Vsel@300

32Vsel@600

48Vsel@1000

with up threshold: 80

Seems to be a great compromis between powersaving and performance for me.
[Defy General] timaroundtheworld:
15@300

28@600

48@1000

64@1300

threshold@70%

Limit to VSel1 when screen off.

On Defy+ feat. Quarx ICS 4.0.4 nightly & stock 2.3.6 kernel.

Get two days per charge with all radios off & one day with all radios on.

Quadrant@2088

Been stable for over a month now (since I got the phone) and could probably push it even more, especially in the mid range.

PeAce! ;-)
[Defy General] kneepain:
50@8

800@38

1350@70

Using CM7.2 RC 2

Quadrant score 2264
[Defy General] kneepain:
My usual settings are

8@50

18@300

23@500

Makes my quadrant score only 1164. Since CM 7.2 is smooth, no jittering is experienced.
[Defy General] freakonleash:
Finally rooted!

Hi!

After fiddling with my defy for 9 months finally rooted the phone & overclocked using setvsel. Config is

17@300

30@600

50@1000 @ 86% threshold (default)

Seems to be working fine thus far with visible snappier performance.

Also installed Gemini App Manager for controlling auto starts. Any feedback on the same? Was reading that background processes don't draw much battery & hence no need to control auto starts.

Cheers!

Noob with a capital N
[Defy General] DarkStone82:
Mine

300@18

600@28

1000@48

Stable for a few months now.
[Defy General] tames:
Whats that BoostedAssV2? and smartassv2.

Which one is better and whats the difference.

i found this, but it says nothing to me:

smartassv2

boostedASSv2

#define DEFAULT_AWAKE_IDEAL_FREQ 768000 500000

#define DEFAULT_SLEEP_IDEAL_FREQ 300000 200000

#define DEFAULT_RAMP_UP_STEP 256000 160000

#define DEFAULT_RAMP_DOWN_STEP 256000 160000

#define DEFAULT_MAX_CPU_LOAD 50 70

#define DEFAULT_MIN_CPU_LOAD 25 40

#define DEFAULT_UP_RATE_US 48000 52000

#define DEFAULT_DOWN_RATE_US 99000 97000

#define DEFAULT_SLEEP_WAKEUP_FREQ 99999999 300000

#define DEFAULT_SAMPLE_RATE_JIFFIES 2 2
[Defy General] NITRO_100:
Read this: http://xdaforums.com/showthread.php?t=1654659
[Defy General] AeroFlip:
How do you set 50mhz?

i doesn´t allow me to go under 200.

What rom are you using?
[Defy General] regenboognl:
im looking for the best battery setup for my defy with defy+ kernel and CM9 rom.

I keep chrashing when ever i go above 1000mhz, maybe its because my vsel? i just looked in this thread and tried to use the same Vsel and MHz as the rest.

i chrash on 14/300 , 26/600 , 36/800 , 55/1100. which one is the bad guy?
[Defy General] syllogyking:
ok your vsel settings are way too low, especially clock 1. clock 3 isn't so bad. set a minimum vsel for clock 1 of at least 18. use at least 30/600 for clock 2. clock 3 shouldn't be a problem but you can try 56. report back with your results.
[Defy General] regenboognl:
Stable since last night:

18/300 26/450 38/700 52/1100

sent from XDA app.
[Defy General] esidyo:
16-300/30-600/40-800/55-1200

Awesome battery life... working fine.. lagless games
[Defy General] marcospulido:
17@300

32@600

52@1000

57@1100

smartassV2 governor;

automatic backlight (attached);

ROM: JB Quarx Lastest ;

2,5 - 3 days of batt life.
[Defy General] ppero196:
If I posted before..I am sorry for double post

Vsel calc app (Updated today)

http://xdaforums.com/showthread.php?t=1815142
[Defy General] _ivo_:
This is what vsel calculator told me, so, we will see... :laugh:

I even dont know what can I get with this :cyclops:
[Defy General] gui420:
cm7

330@19

670@34

1.240@63

estável, rápido e o melhor, bateria durando bem mais
[Defy General] bige93:
300@16

600@30

800@39

1200@60

Starts and runs almost fine with

300@15

600@28

800@38

1200@58

but sometimes random reboots occur.

Defy red lens CM10 by Quarx
[Defy General] on&off:
undervolting values for battery time

hardware: motorola mb525 jordan, green lense soc;

governer = ondemand;

clock/vsel = 300/18; 550/30; 800/42;

up_threshold = 99;

sampling_rate = 100000;

has served me well, for almost a year on miui (gb from miuiandroid.com)

and since then on cm10 (jb from quarx)

with stable performance and great battery time

though i must admit it might disappoint some

on the interaction smoothness front

now that i have four values to deal with in the new kernel

i have to rise from slumber and try find new values to sleep with

will (probably) report back when i have them

hope this helps, good luck
[Defy General] ianovic:
Finally rooted after 18 months!

Stock UK Froyo 2.2.2

Just for starters I have settled with:

Up threshold: 89

300/20

600/38

1000/52

Battery and overall performance is noticeably improved, although I have frozen many bloat apps so this could also be a contributing factor.

Seems very stable so I may push things a little further at some point.

I will come back if/when I do :)
[Defy General] nishantgandhi:
I'm running WajkIUI (MIUI) 2.10.27 GB ROM on Defy+ MB526.

This is what Vsel calculator tells me to set. Anyone have experience with these? I'm looking for good battery life if on 3G/HSDPA all day long.
[Defy General] Sleepy!:
Perhaps you should lower your threshold to the range of 80-90.

And vsel calc is quite reliable if you're looking for new values. But you probably know that. :)
[Defy General] ppero196:
You will hardly achieve full day of 3G usage no matter what you set.

It can last only roughly 10 hours of 3G always on.

Vsel calc (I'm one of the devs :D ) gives safe and tested values
[Defy General] nishantgandhi:
Hmm, I've been struggling to get more than 12-15 hours on 3G. The thing is, I need it only when I'm out on the road. But there is no app which can automatically switch between 2G and 3G based on location (I tried Llama but it doesn't support MIUI ROM). If you know something, please recommend.

In the meantime, I've changed the Vsel values based on your app. Let me see how much can I extract out of it.
[Defy General] Sleepy!:
3G toggle in status bar... use it.

It'll make things more convenient for the time being till you find an auto switching app.
[Defy General] t0mte:
Mine:

17/300

30/600

42/800

52/1000

Quarx kernel.
[Defy General] cibulak:
20/300

30/600

47/900

60/1200

Cm10-quarx
[Defy General] russianguy:
20/300

30/600

40/800

54/1100

Using Quarx's CM10
[Defy General] NeoPreacher:
20/300

30/600

47/900

62/1300

JellyX Kernel

AnTuTu Score: 3776
[Defy General] ttocs99:
17/300mhz

32/700mhz

52/1000mhz

using mookee crazy speed
[Defy General] dagoban:
5/300

27/600

58/1200

If I go lower for 600 and 1200 it crashes but somehow for 300 it doesn't crash. But it looks weird to me, is it possible, that VSel1 is not working for me? How can I check how much voltage it gets on 300MHz.

I'm using

CM7.2 January '13 nightly on MB525 green lens
[Defy General] bimalnp4me:
Quadrant score of 2074

1: 31/300

2: 42/700

3: 54/1100

:cowboy:

Running CM7 custom rom -White Rabbit.

Battery life 16Hours
[Defy General] brendza:
Anyone know why my result is only 1134? What does this I/O means?

My settings are 300/17; 600/32; 800/42 and 1200/62.
[Defy General] Spotja:
Run a stability test for vsel 1 using the Setvsel app
[Defy General] a.ross:
its a bit late but your IO and 2D scores are terrible, you cpu score is about right though, could be your onboard storage is on its way out...?
[Defy General] abhinavvaidya90:
Overclock

300@17

600@32

800@42

1200@62

running great !!
[Defy General] andy-q:
1300 and your defy is still alive?
[Defy General] Spotja:
I used to OC mine at 1350@66. However, it's really hot in South Africa then I figured that with the heat dissipated this can kill my phone. But at 70, it should be worse. I just OC it to 1200mhz@56. And it's rock stable and cool too:D
[Defy General] andy-q:
Very good reference!! Thanks

I currently also run my defy with 1200 and it works like a charme...
[Defy General] coolshahabaz:
The rule of thumb to set vsel is

Vsel = (frequency/20) + 2

This is why people end up

300@17, 600@32, 800@42, 1200@62.

But u can try to go low or high for 3 or 4 number only for the last two values I mean 800, 1200....if u lower the 300 Mhz Vsel to say 12/14 the phone won't wake up from sleep...

So try to play with higher freq only

(being on the safe side)

sent via xda-Dev app (MB526)

Hit Thanks if I helped you :)
[Defy General] frozenwaverider:
300 @ 15

600 @ 30

900 @ 45

1200 @ 60

Perfectly stable, verified by stability test for 6 hours 1200 @ 58 no problems tested the others 1 hour each no problems :)

MB525 Red lense
[Defy General] abhinavvaidya90:
What will be the use ??

I am newbie and i want to ask what will be the use of using all these settings,i know by 1200 Mhz processing will be fast,but that will suck of the battery faster
[Defy General] hotdog125:
The battery life doesn't decrease by much, it isn't noticeable. Overclock made my phone perform slightly better in UI performance and games.
[Defy General] frozenwaverider:
The battery life isn't that badly effected for 2 reasons

1. My ph was stock at max 800 @ 58 so the vsel is almost the same but my ph is much better to use

2. If a task can be done quicker then the ph can drop to a lower setting faster thus possibly saving some battery(this doesn't count in games etc but will make them much more enjoyable)

Happy modding :)

MB525 Red lense
[Defy General] coolshahabaz:
In defy plus stock is 1000@68 n while overcloking we use 1200@62...though I'm using 1200@60, u can try other values also....
[Defy General] twssnoah:
12@300, I've had vsel 1 setting on multiple different roms now, for a few months. this is my second defy.I remember my first one not being even remotely stable this low

25@600 is the lowest stable,I forgot my settings when switching roms, I only remember that 12@300 never caused any reboots, but doing 24@600 did. I haven't found how low I can go on vsel 3 which is now 58@1200 which up until last night was 58@1000 but I don't care because these are now stable numbers and battery is more then reasonable.
[Defy General] lohtse:
I choose my setting and click apply but nothing seems to happen...How do you use this app???
[Defy General] twssnoah:
Under where the settings are it should display current settings, all the vsel values that are currently in place

Also make sure you have your settings apply at boot (Make sure they're stable first). My settings took quite a while to find the lowest stable voltage

You can also choose show CPU speed icon, I set mine to update every 2 seconds. That way I can monitor the usage.

Feel free to ask anymore questions
[Defy General] Mickey M Mouse:
18@300

30@600

40@800

60@1200

Have had these settings working nice and stable for a long time on CM7 then CM10. Now on Mokee 43.1 and seems good so far.

Also using Aero Control to overclock the GPU to 266Mhz, this has made quite a big difference. My Antutu score went from approx 4500 to 5000 and everything seems just a bit smoother. Only problem is I can't get Aero Control to retain the settings on boot :cyclops:
[Defy General] stewi21:
Due to small hardware differences etc, there is no perfect setting for a ROM, just find it using set vsel and stability tests :) make sure set on boot is NOT enabled until you find stable values.
[Defy General] onlyshe:
Mine is:

1: 20/300

2: 31/600

3: 43/800

I don't want to overlock
[Defy General] Evil Slayer:
guys i read that i should use setvsel with CM7

is ok if i use it because i actually used it for 3 days without any issues and now im using the overclock in the boot menu and its annoying and i can't keep track of my cpu
[Defy General] 2Pints:
Ive just got on board the set Vsel bandwagon, looking to improve battery life, and an extra bit of power when needed.

Currently

21@300

33@600

55@1000
[Defy General] classical.hd:
My setting:

300/17

600/29

800/41

Stable for 2 weeks up till now

My Defy can last 4 days with moderate calls, SMS, and web surf
[Defy General] hackergnome:
300/26

800/50

1024/56

Stable,Good Batt (will reduce the voltage)

Quadrant Score:1205 on Stock 2.1 (2.59)
[Defy General] zakoo2:
300/17

600/30

800/42

stable for like a month now :)

Sent from my CM7 Defy
[Defy General] MrBelter:
300/22

600/32

1000/58

Quadrant score is 1219 using stock UK 2.1
[Defy General] Aruoc:
Over

I use

18#300

30#600

52#1000

66#1200
[Defy General] CheeseJai:
16/300

28/600

46/1000
[Defy General] danielthuy:
Mine is

27@300

35@700

58@1200

up_threshold: 81%

With Cm7 RC0 and i got >2800 quadrant

Quite stable :d
[Defy General] :
21 @ 300

32 @ 600

53 @ 1000

up_threshold: 86%

smells like teen spirit ;)
[Defy General] Muznyu:
My values:

300@20

600@30

800@40 or 1000@55

I prefer when a number can be divided by 5 :D
[Defy General] bobbyphoenix:
600@48

800@58

1000@62

Threshold 75%
[Defy General] vap_66:
I'm using these on 2.2 CEE:

26 @ 300

36 @ 600

48 @ 900

up_threshold: 86%

Everything works fine :D.
[Defy General] adida101:
>2800 quadrant :eek: That's awesome, definitely gonna flash CM7 one of these days. Did you do anything else to get such a high quadrant or just CM7 RC0 with the overclock?
[Defy General] zakoo2:
nope, cm7 rc0 does everything for you :)
[Defy General] bmar08:
i personally use Milestone Overclock and set it at: 54@1000 and i have been getting a solid 35hrs battery life out of one charge.. im running stock Froyo Tmo rom rooted with alot of that MotoCrap weeded out of it.. im happy for the most part even though i cant figure out how to deodex it to get the black notification bar without changing to a completely custom ROM.
[Defy General] gkkovacs:
18 @ 300 MHz

30 @ 600 MHz

55 @ 1100 MHz

up threshold at 85%

1508 Quadrant Standard on 2.2 CEE.

Great battery life since got VSel1 down to 18.
[Defy General] Scotty83:
Hi,

I am new to this forum so please bare with my silly questions.

i bought moto defy few weeks back and quite happy with it untill now apart from two things,

one of the is battery life, today i came to this XDA forms and came to know abt this setsvel app, with out wasting time i downladed it but now the prob is this i dont know how to use it. as in screen shot of the app. in market and on the fist page of this thread i m not getting three boxes where i set frequencies.

it will be a great help if u gys can help me with it and let me fully enjoy my defy

I from India
[Defy General] vap_66:
Is your Defy rooted?
[Defy General] vcarrara:
Really liked those settings... but what is your threshold?
[Defy General] zielonek430:
I use:

18 @ 300 MHz

55 @ 800 MHz

70 @ 1300 MHz

Quadrant 3140 points at Cyanogenmod 7 RC0 :D
[Defy General] SeaFargo:
Suggestion for voltage?

Hello :-)

I have a green lens, Froyo 177-3 en.it, and I would like to have some suggestion to setup without overclocking the Defy.

And by the way, the default configuration of SetVsel after installation are a suggestion from SetVsel or the standard Moto Defy settings??

Thanks for your kind reply.

Raf.
[Defy General] 57op:
Have a look here: http://androidunderground.blogspot.com/2011/05/setvsel-overclock-and-undervolt-your.html
[Defy General] SeaFargo:
Thanks Carlo :-)

Very interesting article ...
[Defy General] walter79:
20/300. 30/600. 38/800. 48/1000.
[Defy General] LeoShi:
18%300

38%600

48%1000

up threshold 86%

CM7
[Defy General] bchiu:
18/300

32/600

58/1200

2.2.1 Froyo,
[Defy General] Scotty83:
21/300

30/600

53/1000

Thrash hold 86%

eaisly get 1350 quadrant score

battery is holding up (last a day with moderate usage)

Running it on Froyo 2.2.2
[Defy General] shorty66:
Mine did run stable for a loooong time now on:

24 / 300

33 / 600

48 / 800

Will try

20 / 300

30 / 600

45/ 800

now.

Edit: Ran perfectly, now trying

18 / 300

30 / 600

42 / 800
[Defy General] bujcri:
My settings:

300 : 14

800 : 34

1200 : 60

Threshold: 75 %;

Result:

Quadrant: 2885

Running CM 7 nightly, by Quarx