Thanks,
maybe this would be of a help to identify the purpose of the breakout: Dell XPS L502X - hobi-elektronika
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timewalker75a Notebook Consultant
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mmm, are you able to open the pdf?
I get error with adobe reader while trying to load it.
trying to update adobe now, but not sure if that is the cause -
timewalker75a Notebook Consultant
Loads perfectly fine for me.
Sent from my LG-P500 using Tapatalk 2 -
ok, I was opening it with adobe reader 7
updating to adobe reader 11 seems fixed the issue (I really hate this old PC, everything is outdated lol)
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Can any one link to the insanely blog, regarding installation of OS X
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@Bubloo
are you talking about any of those links
not sure if those are the one you are talking about, found them on a google search ^^
[Guide] Dell XPS 15 L502X (Early 2011) Snow Leopard Install (possibly L702x too) - Notebooks - InsanelyMac Forum
[Guide] Installing Lion on Sandy Bridge Dell XPS L502x - Notebooks - InsanelyMac Forum
@timewalker
I checked the pdf
found something.
and also found something about the another windond chip W25x40vsig wich is 512Kb
it talk about some kind of 512 kb FLASH conected to the KBC (wich also have the keyboard and touchpad conected)
W25x40vsig
and also the known one, the one I dumped
W25Q32BVSIG
about the strange conector, it could be maybe some kind of bluetooth conector?
mmm, if this definitly the bluetooth port, maybe I can see another posible internal usb mod?
usb data + and data -
wiring stuff to this port should be really interesting to expand l502x capabilities -
Hey I have a common issue with my GT540m, It stutters (loop sound) and screen freezes randomly, after a lot of research on the internet I found this thread..
https://forums.geforce.com/default/...lution-to-xfx-gtx-260-black-edition-problems/
Similar to what I'm experiencing. According to this GT540 Could Be factory overclocked, to fix this issue he has lowered the voltages. Now I'm new to all this stuff, he had different GPU so I can't exactly copy the steps, Should I lower both 2D and 3D voltages .83/.83 ? But some users on this forum report issue with that, Please read the link and let me know what should I do, Also don't want to wreck my laptop..Pretty new to this stuff and I'm using A12 Bios. -
@abhizok
well, that seems the well known gt540m freezing issue
if you didnt overclocked the card and it still crashing.
try this one
this bios also include enchancements over stock bios, such as microcode update, uefi boot, unlocked menus, updated intel vbios and more
give it a try, ^^
you have info about how to flash the bios at the first post ^^
if you oced the card and it crashing, give also a try to this bios, since it seems to increase stability anyway.
but if it keep crashing even with the modded bios, you will need to reduce the GPU clocks a little until it stop crashing.
also dont worry about wrecking your laptop, those bioses are well tested and there is a recovery method posted at this topic too ^^
no way to screw your bios by flashing it
edit:
GT540m clocks are:
core: 672 mhz
memory: 900 mhz
the 540m is basically a factory OCed 525m, however in some cases it isnt stable at all (smart from Dell, isnt it?)
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Yeah, Really appreciate helping me
Okay I will try it, But I saw some post that someone burned motherboard was that because of flashing ?
But the post I have given link to recommend lowering the voltage of 2D and 3D... but you recommend me to higher the voltage of 3D (.85)... -
ah, dont worry about that, my motherboard is unusable now because I was messing to much with the bios chip by phisically soldering and desoldering it while I was unlocking advanced firmware features (not only BIOS related)
it is phisically burned, I am waiting now for chip replacements to see if I can repair the motherboard without replace the whole motherboard ^^
but dont worry about yours, because you will doenst need even take appart the machine
you are just flashing a bios at the easy way, no hardware programers or extra hardware required for you
well, the link I gave you already undervolt the card
keep in mind default voltages for the gt540m card are:
for gt540m
2D profile: 0.83v
3D profile: 0.98v
so it is undervolted -
oh.. Okay thank you.. you would not recommend 0.83 for 3D why ? :O
Oh okay so you would not recommend 0.83 for the 3D ? -
0.83v for 3D in 540m is unstable in most cases due the extremly low voltage.
it worked fine for very few, but dont work fine for most.
so I would recomend the one I linked, anyway you can try whatever you want -
Thank you
+1 Rep
I will ask you if I have any problem with my laptop since you seem to be the expert.
Thank You once again for your hard work xD -
hi kasar
This is payback time for all your helps. but i never used paypal. i'm in India. hw can I contribute? Don't know whether such a detailed explanation is given before in this thread.
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@abhizok
thanks
let me know how the bios works for you
however I supose if you didnt posted you didnt found any issue or complain hehe ^^
@dhaneshbc
huge thanks for your interest , I really apreciate it.
well, I admit I never used also paypal before, had to create one when jkbuha told me it was needed for the money.
but well, I think the steps are:
- create paypal account
- asociate bank account or credit with it, it will be need verification, can take two days.
- when the account is confirmed with the bank or credit card you are ready to donate
thank in advance -
Hello Kaser,
Its working great, tested all the functions even native speedstep, lot easier for osx and now fan is normal no more high low speed noise as well played game for more then 2hours so everything perfect!
Custom voltage moded A12 bios mod for gt540m with advanced menus for L502X DOWNLOAD from mediafire /// MIRROR by ximinez
MD5 checksum: 022D368DE178C92DF012CFD3143AE49B
BIOS version used: A12
this bios mod has been tested by Doixdd and shrikant
2D PROFILE: 0.83v
3D PROFILE: 0.85v
notes: voltage modded A12 BIOS for gt540m with a nice set of extra options,plus native speedstep and updated CPU microcode,intel vbios update to v2137 and sleep FIX for OSX, handle the new options carefully!
Thank you so much.. -
@zulqar
glad you liked it and thanks for the feedback, I added you to the first post.
I will try adding to continue adding more features as soon as I get my laptop back to life -
Hey, didn't have time to flash bios, I just did it now, Everything seems to be working fine except fan keep turning on/off which is not an issue for me. I will let you guys know If a freeze during a game or not.
Anyways Thank you. ^_^ -
@abhizok
well, best way to try if if keep freezing or not is play your favorite game with the modded bios during some time
I asume you have a 540m with the crashing issue, right? -
I played two hours of Blacklight Retribution no crash till now but I'm still not sure though because sometimes it doesn't crash at all. Anyways, seems like it worked. Yes, I have 540m
Cheers
I will try once again and let you know -
nice
I hope it will keep like this way
I think you are using some of the the 0.83v / 0.85v modded bios, wich usually seems the best choice for gt540m users -
Yes, didn't crashed whole day. Thank you.. Thank you xD
You can add my name to the first post successfully tested -
glad it worked for you abhizok
I added you to the first post, I asume you are using L502X_A12_540m_83_85_Unlocked_Menus_v5.rar right? -
Yes and Thank you
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Hello,
Is it possible to disable the nvidia GPU ? so that it won't even show up in the os ? mine is dead... thinking of giveing it to my parents and buying a new one but i don't want them by mistake to install it and then start haveing problems as we don't live in the same country we comunicate on skype a lot. I installed the moded A12 bios but i couldn't figure it out, not even sure if it's possible.
Thanks. -
@cmaniutiu
mmm, it could be posible to replace the GPU vbios with a emty file (all hex stuff replaced with FF), but not sure if that will work.
test this bios at your own risk
L502X_A12_NO_GPU_TEST_Unlocked_Menus_v5.rar
well as a last resource you could take appart the laptop and cut all or some wires from the gpu, from what I read it is using a pcie-express x16 bus, the bad thing is that it isnt removable/remplazable, so modding the motherboard would be needed. -
Hi, thanks for the fast replay, unfortunatly the nvidia gpu is still visible in the device manager section... the bios did not ruin anything, seems to be working like b4... you said i could blank the vbios... i'm willing to test anything on this laptop since the mb is kindda dead :| worst case scenario i'll buy one from ebay.
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mmm, that is weird, I remember while I was modding the vbios, I tried to flash a newer version of the vbios, but the card rejected to init and had a yellow thing over.
so its curius it still init even replacing the whole vbios with FF
well, maybe the power of the gpu did also power another devices.
try undo the changes you did any try another thing
I asume the card is basically a modded/soldered MXM card wich use the PCI-express 16 bus
this pinouts may be usefull
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i did not try to install the card it was standard vga adapter in the device manager, once i install it the whole laptop moves like a very old pc with a lot of delays; only shutting it down takes around 20 minutes
, anyway i will try to figure out the pinout you sent me and let you know what i come out with , thanks again.
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btw it has a 540m video card, forgot to mention
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ah ok, thx for the info
well, the 540m and the gt525m are almost the same card.
the 540m just have some more memory and higher clocks, but probably the same chip (GF108)
let me know if you find something, this could be usefull for people with broken gpus like you or people who want temporally disable the nvidia card to save power/heat and keep the laptop to perform larger battery times. -
this is one of the best forum threads I've ever seen! A lot to digest.
Thinking of turning this L502X of mine into a "HackBook Pro" so the OSX sleep patch seems interesting ;-)
Which of the advanced menu options are "dangerous", exactly? -
well as far as i noticed none, even if you manage to break it( as i did ) if you use the recovery cd it will work just fine
i'm not 100% but i had nothing on the display after changeing some options and the recovery cd worked just fine , kasar does a great job
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@capitankasar i kept playing with it nothing so far , just an update
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Hey folks.
just wanted to stop in and see what was up.
@capitan
how are things with getting a replacement? are you getting close? -
@justinkb
thank you
well, not really dangerous menus are at the unlocked options.
anyway I would handle with care the graphical settings and the thermal menu (I noticed by just browsing the thermal menu some monitoring software get stuck for some reason, to fix that I needed to reset bios values to defaul/load default settings, and configure the other options again, obiusly without entering at the thermal menus)
@cmaniutiu
thanks
yeah, that cd works and fix any bios related issue.
it fixed all of mine until I started messing with the bios chip phisically with hardware programers, (the flash chip also contains more stuff than the bios, like descriptor, ME firmware, and other stuff wich the cdrom method cant fix/re flash, but for most users it should be fine unless they do hardware hacking like I did on mine ^^)
thanks again, let me know if you found something interesting
@guessyet
hey
well, my laptop still dead.
anyway, hopefully I will be able to fix the motherboard by just replacing the burned bios chip (hope there are no other damage at the motherboard)
the sockets arrived today, I made a second version of the hardware programer, this one with the socket installed, so flash advanced firmware settings, including flash an emty chip and restore my laptop hopefully would be posible
more info here:
(UEFI) Dell XPS 15z L511z modded BIOS - and HOWTO -
Oh man, this just gave me a great idea(maybe). I'm honestly disappointed with the 525M's performance. Since you mentioned that it's an MXM card, it should theoretically be upgradeable right? I saw this thread of some guy upgrading his alienware to a 660M: [Guide] M15x with Nvidia GTX 660m And this company sells MXM cards: MXM Upgrade Home Page If it's possible, I'd love to give it a try
I'm fairly hand with soldering.
--Adeeb
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@adeebm
well, I just suspect it have compatible pinouts, however , like I stated, the card is soldered/integrated in the motherboard
so for this, it would be needed to unsolder/cut the old gpu and connect the new one by soldering.
this would be really hard, and not sure if this would need some kind of firmware modding too.
also not sure if the laptop with the final mod will fit perfectly in the original case.
anyway, if you feel capable to do it, lets go for it, an l502x with a 660M should be awesome -
it should be something like this.
it sounds crazy, but it may works if you are really good by soldering and you dont cut any important trace or component from the motherboard
I though more than once in doing something like this, but my soldering skills arent that good, and I am also not sure about the correct gt525m trace pinouts or also if there are any other non gpu related component at the GPU zone square. -
Ahh, I assumed integrated meant an MXM chip soldered onto the mobo. That looks more like they just threw the 525m components on all over the place. Considerably more daunting, if it eve works haha.
--Addeeb -
yeah, it it would be just soldered, it would be even posible to desolder the card and attach a MXM connector, so the would be able to connect any compatible card, but like the way it is, it is extremly hard to replace the GPU like that way.
chances to screw the whole motherboard are high.
also the new mxm card would probably not fit on the previus GPU place, so it would need case modding + heatsink modding
also you would need to get the correct pinouts from the things and make sure you dont cut any non gpu related component.
this is a mad project, but if someone acomplish it and make any other GPU rather than GT525m or gt540m works at this pc, he would be my hero
as for me, being optimist, I could only make the intel HD 4000 from the Ivy bridge CPUs working asuming I finally get the ivy bridge support working.
but well, I would need a ivy CPU to test for that
also I need to revive my dead laptop first, I sucesfully installed the dip8 sockets, but still waiting for the bios chip replacements.
installed dip8 socket, also removed a small plastic square to be able to replace the bios chip fast in case of disaster or just flash anything
and my custom made bios programer 2.0 with dip8 socket installed too
swaping bios chips will be really easy now, before it took minutes/hours to replace by desoldering/soldering, now it takes just seconds
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so , i tried cutting the power to the GPU in all kinds of ways, nothing worked... i looked "around" and noticed that there are some XPS l502x motherboards without any nvidia gpus, only on intel so i kept digging and i found out that on inspiron n5110 with nvidia 525m if you simply cut the power to the gpu the motherboard does 3-4 test restarts then it runs only on intel, i wonder why it doesn't work on xps l502x or what am i doing wrong, just an update to my research
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not sure what it could be the issue.
maybe the card still partially powered on by some other power source.
it also could be firmware issues, I mean it could be hardcoded in the firmware to check for the card, probably the non nvidia gpu version firmware is different.
not sure. -
Hi Capitan
First time Overclocking my CPU.
I have L502X with GT525M and Intel Core i7 2630QM @ 2.0Ghz / 2.9 TB
Currently using A12 BIOS from Dell.
I'm looking for a safe/stable OC to increase game FPS and overall speed.
Which Modded BIOS version should I use?
What MSI settings do you recommend?
I'm pretty sure I grasped the concept (very instructive thread) but since you're still active I thought I'd ask and get this right from the start.
Thank you. -
@denimboy
hey
CPU overclocking?
I supose you are talking about GPU overclocking, because no CPU overclocking is posible yet on the L502X (I screwed my machine while I was trying to phisically desolder BIOS chip to flash a BIOS with CPU unlocking tests..)
as for GPU overclocking for a 525m, I recomend you the 0.85v/0.85v, and a starting OC I would recomend 700 mhz core, if it is stable, try something higher, else lower it a little
you can also try 0.83v/0.83v since many 525m users said it works fine
feel free to ask any question you have -
actually you can overclock quite easily - I do it all the time via cloverefi. Running at 20% faster at the moment (Bus Speed = 120MHz, GeekBench = 20% higher).
downside is that I can only do it in OSX for now as I'm booting via UEFI. Can't seem to boot w7/w8 via clover for now as it hangs during the boot sequence.
in fact anyone who can help me with this will help me write another HOWTO on successfully modifying your FSB at boottime for win & osx -
yeah, I tried that before on the other thread, but I was unable to boot windows 7 with it.
getting that method working for windows 7 could be interesting. thanks for the info.
let me know how I can help you with that.
also as soon as the replacement chips arrive, I will put the machine back to work status and resume the advanced firmware flashing tests. -
Should I get the A11 "standard" or the new A12 "advanced" ?
I might want to turn off the power saving options EIST, C1E, C3/C6.
Thanks for your help. -
and unlocked menus , of course ^^
L502X modded bioses download (GPU voltages and more!)
Discussion in 'Dell XPS and Studio XPS' started by capitankasar, Dec 30, 2011.