Posted: Thu Aug 03, 2006 7:04 Post subject: WRT54GS v5 users: How to enable 16 MB ram
Before you start reading this, check if 16MB is not already enabled. Then do nothing but enjoy dd-wrt.
ONLY FOR GS:
db90h wrote:
So, now you guys want 16MB eh?
WARNING: Do not try this on a WRT54G or any other model besides a WRT54GS v5. I haven't tested enough to know if it works ok even on a WRT54GS v5.1. Please use caution. Wait for test results.
Code:
nvram set sdram_init=0x0A
nvram set sdram_ncdl=0
nvram commit
reboot
I posted pretty strong warnings elsewhere, but I'll reiterate them here: Trying this on an unsupported unit will brick your router, recoverable only through a JTAG based erasure of NVRAM.
I posted this information on the other thread, but I'll post it again here:
For those who own a D-2, or other 16MB model we haven't tested. I can say that it will work for sure only if your RAM chip is "mira p2v28s40btp".
P2 == mira DRAM
V == LVTTL
28 == density (128mbit)
S == synchronous DRAM
4 == x16 organization (4 banks - 16-bit)
0 == random column
B == 3rd gen
TP == TSOP(II)
These RAM chips run at up to 166mhz. By default they are only running at 100mhz in these boxes. I'm not sure about the controller's capabilities though. I did notice that they work at CAS2 at 100mhz, though whether or not the controller is actually running them at CAS2 I don't know.. I'd have to benchmark. I'll work on my overclocking page and see if I can find a divider that will allow you to run the RAM chip faster without even overclocking the CPU.
Damn you WRT-54G v5!! why must you suck so damn much. Oh well I already sent in the mail-in rebate So I guess I saved money ... just trying to self comfort
Damn you WRT-54G v5!! why must you suck so damn much. Oh well I already sent in the mail-in rebate So I guess I saved money ... just trying to self comfort
If it makes you feel better, I've found my Gv5 quite capable.
Joined: 07 Jul 2006 Posts: 15 Location: Georgia, USA
Posted: Thu Aug 10, 2006 1:00 Post subject: What about us 'G' users?
Although I am amazed by the breakthroughs BS and others have done with the WRT54G and GS models, we on the 'G' are limited to only 8MB and would love to squeeze another few 100k if thats possible. I'm sure myself and the others would be most grateful and hopefully with the extra memory get a few more options that are currently not found in the micro version.
Posted: Thu Aug 10, 2006 1:22 Post subject: Re: What about us 'G' users?
Red_Rhino wrote:
Although I am amazed by the breakthroughs BS and others have done with the WRT54G and GS models, we on the 'G' are limited to only 8MB and would love to squeeze another few 100k if thats possible. I'm sure myself and the others would be most grateful and hopefully with the extra memory get a few more options that are currently not found in the micro version.
Yea, I've been thinking about how to do this for some time. It's not easy though, and any little gain will immediately be offset by inclusion of another desired function to fill the gap. I really don't think much advancement will ever be made on this.. sorry. Plus, there's not much incentive.. it'll never be 'enough' no matter what, and I think at the moment I am the most motivated v5 series developer you'll find, so if I am saying this, you can count on it not being just a lack of interest or desire.
Joined: 07 Jul 2006 Posts: 15 Location: Georgia, USA
Posted: Thu Aug 10, 2006 22:26 Post subject: Re: What about us 'G' users?
db90h wrote:
Yea, I've been thinking about how to do this for some time. It's not easy though, and any little gain will immediately be offset by inclusion of another desired function to fill the gap. I really don't think much advancement will ever be made on this.. sorry. Plus, there's not much incentive.. it'll never be 'enough' no matter what, and I think at the moment I am the most motivated v5 series developer you'll find, so if I am saying this, you can count on it not being just a lack of interest or desire.
Thanks for the honest answer. You have done so much for us v5 users to get the DD-WRT firmware on it, and we appreciate it. Keep up the good work! _________________ WRT54G v5 (DD-WRT v23 SP1 Final 05/16/06 micro)