Hi,
I like to upgrade Universals to 128MB RAM.
Unfortunately I don't have access to 64MB rams usualy.
What I have a plenty of is: HYB25L256160AC and HYE25L256160AC 32MB ram chips which universal originaly contain.
There is a spare place for 4 RAM chips in universal, so why not to add these.
I haven't seen this discussed anywhere. I even don't know sure if the spare place is meant for RAM (but most probably).
I have very advance skills in BGA resoldering, so I'm able to experiment.
What I need is someone who understand it more and tell me first if it's possible to use 4 chips there and maybe someone know if there are some hardware updates in the pins around (short circuiting or resistor adding).
And don't hestitate to post some reply even if you are not sure if it's right....
I need some brainstorming here.
Regards,
Shef
I don't think that those 2 extra "brackets" are for RAM, because i think they are smaller than the ram module. But if they where for RAM there are a lot of missing components at the bottom, capacitors, resistors... (closer to the Flash Disk), probably i'm wrong, because the picture can induce in error... but it's just a opinion...
http://www.asukal.jp/Jasjar/PB081087.JPG
Actually, it should be for RAM. It's smaller, you are right.
But, the size fits the original 32MB chips and the connection pins are on the right place.
The white frame which tells where the edges of chip should be is the size of the rams - actualy the bigger frame on empty place is same big as small one on the original rams.
In the worst case for me, it seems that htc wasn't sure which memories will use so they prepared 4 frames for differend type of memories. In this case it's most probable that they can't cooperate with the other ones. But I bet it's just prepared for another 2.
Did the service manual say something about it?
And about missing parts...it's just a few, I can add them in a few minutes.
Shef
I agree with you about the diferent types of ram used by htc maybe the brackets are there for precaution. I know that's quite easy to solder the components, but the main problem is to know the exact values of the resistors and the capacitors and the right place... or not if they were in the datasheet of ram
free place near ram chips NOT FOR ADDITIONAL RAM CHIPS ..... its for NOR FLASH chips
Shef said:
Hi,
There is a spare place for 4 RAM chips in universal, so why not to add these.
I haven't seen this discussed anywhere.
Click to expand...
Click to collapse
Then you should look again more thoroughly - this has been discussed a few times on various threads re: 128MB RAM upgrade.
Shef said:
I even don't know sure if the spare place is meant for RAM (but most probably).
...
Actually, it should be for RAM.
Click to expand...
Click to collapse
Again this was discussed a few times - these are not for RAM but for flash chips.
Related
Guy's,
Anybody have any clue on the RAM chip part no. used in this current phone as I would want to do a DIY upgrade to 128Mb or 256 perhaps...
Maybe a detailed high res picture might help too...
changing the chip itself is not likely to be enough imho
chip sellect systems may not be able to access the larger
address span
quote="Rudegar"]changing the chip itself is not likely to be enough imho
chip sellect systems may not be able to access the larger
address span
Click to expand...
Click to collapse
[/quote]
Bro,
It's enough, RAM used here is plug & play... Trust me...
Okay, let's just say, in a completely theoretical question, does anyone know the hardware in these devices well enough to know if it's at all possible to upgrade RAM by replacing the stock chips with higher capacity chips? I'm just curious if the system would be set to a certain amount so that an increase wouldn't even be recognized, or if the chips were special in some sort of way that would prevent them from being swapped out or anything. The OS would certainly not care, but what about the actual hardware or system settings?
it all comes down to memorymap
http://en.wikipedia.org/wiki/Memory-mapped_IO
if a nother address room for another addressable device
is places close to the address room of the mem then
it would overlap and not work at all
also one have to be pretty good with a solvering iron to solver these smd chips out
they were never ment to and is by no means solvered in by hand by the manufactor
this is possible on some devices (heared about HPs being upgraded), and impossible on others (like universal).
Yes, as mamaich said.
iPAQ Hx 4700 can be upgrade RAM to 128 MB by using iPAQ 5550 128 MB RAM on board.
Or using upgrade service http://www.the-gadgeteer.com/review..._to_128mb_internal_ram_upgrade_service_review
Interesting. Alright, thanks. I was just curious about the architecture of how the hardware worked in the devices. While I'm crazy enough to try such a thing (and fairly experienced in PCB work), I certainly have no intention of doing so until my device is past any type of warranty period. Even if I didn't screw anything up, I'd be screwed if anything else did screw up later.
The Dell Axim X50v and X51v (probably the non-vga versions also) can also be upgraded to 128mb RAM (vs 64mb stock).
Hi guys
I'm not a programmer by any means, nor do I know anything about developing software, so take this idea with a grain of salt.
The issue I notice from time to time with my PPC6800 is slowdown from lack of ram (or that I haven't closed the apps and they're hogging the ram). My phone only has 64mb....so this got me thinking.... Vista has a feature called Readyboost which uses any flash based USB key to act like virtual ram (or a pagefile).
SO, how feasable would it be to create software that would coule read/write off the microSD card as if it were ram? Basically a MobileReadyboost as it were.
Discuss amongst yourselves =)
PS: Forgive me if something like this already exists for our platforms...but I haven't seen it.
SD cards read and write slow...
What if deleating the extended rom partition (located in ram, right?) and using that for a pagefile instead?
most people don't seem to use the extended rom when cooking. why not just make it usefull?????!!!!!
S.V.I said:
SD cards read and write slow...
What if deleating the extended rom partition (located in ram, right?) and using that for a pagefile instead?
most people don't seem to use the extended rom when cooking. why not just make it usefull?????!!!!!
Click to expand...
Click to collapse
SD cards can be slow, but there are some models that are faster. Granted they cost more and are a little harder to find, because they are aimed photo people. But yeah.
extended rom in cooked roms is generally used for extra storage anyway so it isnt like it isnt being used
"SD cards can be slow, but there are some models that are faster. Granted they cost more and are a little harder to find, because they are aimed photo people. But yeah."
problem is that today it's not just sdcards which is the bottleneck the sd interface itself on the cpu is slow too
I tried searching for this one and couldn't come up with any good answers on here, but it's something that I've been wondering since I got the G2. I've noticed that no matter what rom I use, the total memory in settings>about phone never shows up more than 400mb. I can't be sure of the exact amount for all the roms I've tried in the past, but I remember thinking it peculiar, although thinking about the internal memory and the fact that it was advertised as 4gb and only registers as 1.2gb, I was thinking maybe this is a similar thing?
Sent from my G2 running GingerMex Ghost Chili
Gwanatu said:
I tried searching for this one and couldn't come up with any good answers on here, but it's something that I've been wondering since I got the G2. I've noticed that no matter what rom I use, the total memory in settings>about phone never shows up more than 400mb. I can't be sure of the exact amount for all the roms I've tried in the past, but I remember thinking it peculiar, although thinking about the internal memory and the fact that it was advertised as 4gb and only registers as 1.2gb, I was thinking maybe this is a similar thing?
Sent from my G2 running GingerMex Ghost Chili
Click to expand...
Click to collapse
Get a better phone, this is normal.
Get a good one damnit
meXdroid Ghost Chilli
The rest is used up by the operating system.
Sent from my HTC Vision using XDA Premium App
Normal. My mt4g never shows more than 500mb after a fresh reboot.
Sent from prison
tackleberry said:
Normal. My mt4g never shows more than 500mb after a fresh reboot.
Sent from prison
Click to expand...
Click to collapse
That's normal to..
Look at this example
You buy a computer for 400 and in order to play crysis you need to have 2000 total dollars.
The 400 is for the computer, 50 of that is for crysis and the remaining 1550 is used to increase your computers everything just to freaking play that graphic hog game..
Okay better example
You eat a twinkie, it looks good at first, the commercial urges you to buy it. Even the box makes it look good, but once you eat it you realize your stomach hurts and it was a waste of time buying something that is so fattening you wish you hadn't.. bloatware much?
Read the details here HTC Vision XDA wiki
melodicjunkie said:
That's normal to..
Look at this example
You buy a computer for 400 and in order to play crysis you need to have 2000 total dollars.
The 400 is for the computer, 50 of that is for crysis and the remaining 1550 is used to increase your computers everything just to freaking play that graphic hog game..
Okay better example
You eat a twinkie, it looks good at first, the commercial urges you to buy it. Even the box makes it look good, but once you eat it you realize your stomach hurts and it was a waste of time buying something that is so fattening you wish you hadn't.. bloatware much?
Click to expand...
Click to collapse
what? how does this at all help anyone understand this.
martonikaj said:
what? how does this at all help anyone understand this.
Click to expand...
Click to collapse
i think he's just saying that the OS is using up the other resources
compare it with a sony PSP.. since it doesn't run a lot of programs in the background, it can play graphics intensive games with such low clocked cpu and less ram compared to mobile phones
BTW i know you are talking about the physical memory but just wanted to bring it out there
you can check the link given by Innocent Devil and check the "The Missing 2GB" part. it explains it there
krizz07 said:
BTW i know you are talking about the physical memory but just wanted to bring it out there
you can check the link given by Innocent Devil and check the "The Missing 2GB" part. it explains it there
Click to expand...
Click to collapse
This has *ABSOLUTELY NOTHING* to do with the "missing 2GB".
The question is about RAM, not storage.
Most relevant example;
You buy a new computer with an integrated video adapter. You go into the BIOS configuration program and it has an option to change the amount of RAM being allocated to the GPU -- 64 MB, 128 MB, 256 MB, or 512 MB. You have 4 GB total and set the GPU to 512 MB. When you boot into your operating system, you only see 3.5 GB. Where is the missing 0.5 GB? Its allocated to the GPU.
In addition to allocating a whole bunch to the GPU, these phones are actually TWO COMPUTERS (with two separate CPUs) that run two different operating systems concurrently. The first one is the RADIO system, responsible for messing with the wireless. The second one is the APPLICATION system, which runs the user operating system and interface (Android). They share a common pool of RAM, so some of it is allocated to the RADIO, some is allocated to the GPU (and other media components), and only what remains is available to Android.
Thanks for those of you that gave me good answers! This clears things right up!
dhkr234 said:
This has *ABSOLUTELY NOTHING* to do with the "missing 2GB".
The question is about RAM, not storage.
Most relevant example;
You buy a new computer with an integrated video adapter. You go into the BIOS configuration program and it has an option to change the amount of RAM being allocated to the GPU -- 64 MB, 128 MB, 256 MB, or 512 MB. You have 4 GB total and set the GPU to 512 MB. When you boot into your operating system, you only see 3.5 GB. Where is the missing 0.5 GB? Its allocated to the GPU.
In addition to allocating a whole bunch to the GPU, these phones are actually TWO COMPUTERS (with two separate CPUs) that run two different operating systems concurrently. The first one is the RADIO system, responsible for messing with the wireless. The second one is the APPLICATION system, which runs the user operating system and interface (Android). They share a common pool of RAM, so some of it is allocated to the RADIO, some is allocated to the GPU (and other media components), and only what remains is available to Android.
Click to expand...
Click to collapse
Very interesting, didn't know about the dual OS thing. Makes sense though, and I figured that was the case but just wanted a sure fire answer. Thanks a lot!!
dhkr234 said:
This has *ABSOLUTELY NOTHING* to do with the "missing 2GB".
The question is about RAM, not storage.
oopsie you're right.. i guess the PSP comparison is the one applicable then haha
he's absolutely right, the other ram is for the OS itself and the rest is for your other apps. this makes the phone silky smooth when running tasks unlike my touch pro 2 before, which has a very low ram plus all the "memory leakage" but it still has the best keyboard
Click to expand...
Click to collapse
Hi All
after upgarde from GB to JB (either LEAK / Official), JB seemed Slow. whether to change the partitions on a flash PIT file MB2 / 4 can increase the RAM capacity in JB.
I found a thread where we can change it by using the application PIT "PIT_Magic".
but I do not understand how its use. if anyone can to using it please share...
Thanks
Original Thread PIT MAGIC
rozyid said:
Hi All
after upgarde from GB to JB (either LEAK / Official), JB seemed Slow. whether to change the partitions on a flash PIT file MB2 / 4 can increase the RAM capacity in JB.
I found a thread where we can change it by using the application PIT "PIT_Magic".
but I do not understand how its use. if anyone can to using it please share...
Thanks
Original Thread PIT MAGIC
Click to expand...
Click to collapse
You cant do that!there is about 140MB unused ram in stock firmware. in order to increase ram and use full of it ,you sould have uncompiled kernel source and know android kernel programming and change it.
but always you can change your phone partition sizes through PIT Magic while falshing.
kernel source
sorset said:
You cant do that!there is about 140MB unused ram in stock firmware. in order to increase ram and use full of it ,you sould have uncompiled kernel source and know android kernel programming and change it.
but always you can change your phone partition sizes through PIT Magic while falshing.
Click to expand...
Click to collapse
Hi Sorset
maybe we can help to hafidzduddin to edit the kernel in order to read that we change the RAM to 1 GB .. ..
From where you flashing JB? From GB or JB XXMB4?
edit PIT to get 1gb RAM
ddikodroid said:
From where you flashing JB? From GB or JB XXMB4?
Click to expand...
Click to collapse
from JB MB4
i just Edit PIT FILE on MB4 to get RAM 1 GB, but I have not dared to try it..
I am still gathering information about the RAM partition address....
1 GB? ~768MB is enough for me. Though i really think that it can't go over 700+MB.
1 Gb? WTF?
Our device doesn't have true ram? I thought that we have some sort of LDDR2 ram and it's quite different from it's flash NAND.
I think you can't go over installed 768 mb and you can't even reach this number because gpu also use the same ram.
I hope Samsung didn't put the ram on storage because it will wear out like hell. NAND it's not fast, not even prone to multiple write cycles.
Even if you're successful in increasing you ram, you will make something like swap partition on linux. But I highly doubt it will work.
Swap system is not used on mobile devices because NAND wears up too fast.
According to this:
http://forum.xda-developers.com/showpost.php?p=35222874&postcount=14
...we do not have LDDR2. There is only 4GB chip named UME300 (IC-NAND Flash Memory, 4 GB, SDIN5D2-4G-944L, BGA, P/N: 1107-002091)
It may be true regarding memory size of ACE 2:
system 1,2 + USB 1,1 + 0,768 + spare for dead cells = 4GB
SIII Mini for example have 1GB RAM and I/O and RAM operations are much much faster. Also there are no 768MB LDDR2 chips on market. Using emmc as low speed LDDR2 substitute is quite common in Samsung devices.
arroyo said:
According to this:
http://forum.xda-developers.com/showpost.php?p=35222874&postcount=14
...we do not have LDDR2. There is only 4GB chip named UME300 (IC-NAND Flash Memory, 4 GB, SDIN5D2-4G-944L, BGA, P/N: 1107-002091)
It may be true regarding memory size of ACE 2:
system 1,2 + USB 1,1 + 0,768 + spare for dead cells = 4GB
SIII Mini for example have 1GB RAM and I/O and RAM operations are much much faster. Also there are no 768MB LDDR2 chips on market. Using emmc as low speed LDDR2 substitute is quite common in Samsung devices.
Click to expand...
Click to collapse
I thought this was a joke at first when rozyid said we can increase our RAM
so it was 601MB system + 302MB cache + 1,2GB data + 1,1GB usb = ~3,2GB
It will make sense if the remaining is our "RAM"
if somehow someone able to increase this by resizing other partition (/cache maybe?) it would be really nice
And btw, what is the function of /cache? When I checked it using link2sd it wasn't used
But hey, didn't we used another partition /preload in JB? If I'm not wrong it was about 200MB, right? So then it be more than 4GB if we add it to previous calculation
Sent from my GT-I8160 using xda app-developers app
[Noob] For example wont decreasing the RAM on the device increase the "ram" allocated to the GPU thus increasing our gaming performance in any way?
S3 mini RAM score is only 10% faster in antutu, either S3 mini doesn't have true RAM or our device has one.
I think you've added up incorrectly here. 4GB is usually 3.7gb total.
Also, if you looked in the PDF's from one of the links above, you would notice we do in fact have LP-DDR2 ram...
arroyo said:
According to this:
http://forum.xda-developers.com/showpost.php?p=35222874&postcount=14
...we do not have LDDR2. There is only 4GB chip named UME300 (IC-NAND Flash Memory, 4 GB, SDIN5D2-4G-944L, BGA, P/N: 1107-002091)
Click to expand...
Click to collapse
I was very confused when you wrote this. It's absolute non-sense to use NAND as RAM. It will wear in only one month.
They should have at least the most creepy ram, cache or something else that it can be re-writable.
You can have smooth gui with no RAM installed. It's impossible. You can't draw 20000 triangles per frame and having decent framerates without having a ram that it's capable of speed near 1 Gb/s ...
Also usually memory came in banks, 256 Mb banks were usual in the past, so puting 3 banks can give you 768 MB.
@Jamielawther
I would love that fact to be truth, but this diagram is not hardware schematic. It is logical diagram how things push data between elements. Move couple pages further and try to find element for LP-DDR2 on PCB. I did not found one. Also in document 05-GT-I8160-EPLIS-11.pdf you have the list of electrical parts. I did not found SEC Code for anything that could be LP-DDR2.
@veaceslaw
Take a look at PCB in 08-GT-I8160-TSHOO-7.pdf. There are no 3 ram chips there. In fact there is only one 4GB. If they used emmc as a RAM, it won't die in one month. Probably it last for 2 years or more ... after warranty it may die.
In my PC, SSD disk is used as TEMP and cache memory for last 2 years. Still running flawlessly. Every ROM chip has some space left for spare blocks to be used as a replacement for died blocks.
arroyo said:
@veaceslav
Take a look at PCB in 08-GT-I8160-TSHOO-7.pdf. There are no 3 ram chips there. In fact there is only one 4GB. If they used emmc as a RAM, it won't die in one month. Probably it last for 2 years or more ... after warranty it may die.
In my PC, SSD disk is used as TEMP and cache memory for last 2 years. Still running flawlessly. Every ROM chip has some space left for spare blocks to be used as a replacement for died blocks.
Click to expand...
Click to collapse
Can you find the U8500 chip?
veaceslav said:
Can you find the U8500 chip?
Click to expand...
Click to collapse
UCP300
arroyo said:
UCP300
Click to expand...
Click to collapse
http://forum.gsmhosting.com/vbb/archive/t-1363562.html
UCP 300 is RF chip and I don't know what rf is, but it's in GT i9100 and I don't think i9100 have Novathor
if you do it guys it would be awesome
because all good games with best graphics lags
i even dont want to get back to this ugly outdated gingerbread
arroyo said:
@Jamielawther
I would love that fact to be truth, but this diagram is not hardware schematic. It is logical diagram how things push data between elements. Move couple pages further and try to find element for LP-DDR2 on PCB. I did not found one. Also in document 05-GT-I8160-EPLIS-11.pdf you have the list of electrical parts. I did not found SEC Code for anything that could be LP-DDR2.
@veaceslaw
Take a look at PCB in 08-GT-I8160-TSHOO-7.pdf. There are no 3 ram chips there. In fact there is only one 4GB. If they used emmc as a RAM, it won't die in one month. Probably it last for 2 years or more ... after warranty it may die.
In my PC, SSD disk is used as TEMP and cache memory for last 2 years. Still running flawlessly. Every ROM chip has some space left for spare blocks to be used as a replacement for died blocks.
Click to expand...
Click to collapse
Anyone bothered to look through the documentation?
If you check 08-GT-I8160-TSHOO-7.pdf on the first page you can see the block diagram and there you can see stated LP-DDR2.
Check the attached picture.
If same chip is being used as RAM, then what is the benefit of moving data from on part of same memory to another? Won't that reduce io speed, cos I thought the purpose of RAM is to speed up data access for CPU from normally slower data storage eg. Hard drive.
Sent from my GT-I8160 using xda app-developers app