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Home / I-Opener Areas / I-Opener Technical Stuff Question about replacemnt SO-DIMM memory modules... 256MB SO-DIMM PC133/PC100

Question about replacemnt SO-DIMM memory modules... (modified 0 times) danvuquoc Profile | Email I looked at the other threads and didn't see any topics pertaining installing a 256MB SODIMM Memory Module inside of the IOpener. I was wondering if : 1.) Would it fit? (the modules I'm buying don't specify how thick they are) 2.) Does the iOpener support this much ram? (will I be forced to buy a 128MB SODIMM instead?) 3.) I know SODIMM PC133 is backwards compatible with slower SDRAM SODIMMS, but do I actually need it if I plan to do the K6II hacks later on? Thanks, Dan Vu Quoc 12-27-2001 19:56:37

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) Ragnar1 Profile The iopener will only recognise and use the full 256mb is there are eight chips on each side. If there are four chips per side the iopener will only use 128mb. 12-27-2001 20:16:14

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) danvuquoc Profile | Email Wow, that's going to be a PAIN to find a 256 MB SODIMM, do you happen to know any out there that specificly have 8 chips on each side of the DIMM? What limits this? the SODIMM architecture? 12-27-2001 20:38:57

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) Ragnar1 Profile ckbone had a post recently about a 256mb chip called "Centron" or something. Supposed to be at Circuit City. It has the required number of chip per side. Haven't been to town lately so I haven't checked it out, yet. 12-27-2001 23:08:58

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) ckbone Profile Yeah...I got one. It really helps XP. If you're running W98, it might not be much help. Every little bit on an I-Opener is a benefit, however. I think the std price is about $50.....wait for a sale at Circuit City. Mine cost $40. 12-28-2001 04:43:06

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) ckbone Profile Stopped at Circuit City after work.....the price on this chip is $64 (not on sale today). They did have a bunch. This is the only SODIMM with the 16 chips I've ever seen. There have been other reports of a Viking chip like this one...... 12-28-2001 17:30:19

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) danvuquoc Profile | Email Hmmm, well I went on my own little hunt today for a 256MB SoDimm with 16 chips (128Mbits x 16, 8 per side). Here is what I found. Circuit City, $64.99 + tax (about 71 dollars). www.centon.com, 256MB SODIMM PC100 And then, at BestBuy, some V[Something], has 16 chips 256MB pc100, I got really mad at the store clerks, waited about 30 minutes for them to open up the ram case so I could check the price, asked 5 people and nobody came, so no price on this one. About the Viking one, I sent Viking an e-mail yesterday because I've seen a bunch of them on EBay, the picture for it has 16 memory chips on the module, and I asked the seller and he said it matched up with the description, so I sent an e-mail to Viking and awaiting a response. They are supposedly PC133 and priced at 49.99 + shipping. 12-28-2001 19:50:34

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) danvuquoc Profile | Email WOAH! I just searched for SoDimms on Ebay today! Kingston 512 MB ValueRam Laptop SODIMM Please tell me these would work. Here are the specs. "This ram is a Kingston ValueRAM's CL3 64M x 64-bit (512MB) SDRAM (Synchronous DRAM) memory module. The components on this module include sixteen 32M x 8-bit (8M x 8-bit x 4 Bank components) PC100 SDRAM in TSOP packages. This 144-pin Small Outline DIMM uses gold contact fingers and requires +3.3V. The electrical and mechanical specifications are as follows: Features: CLK Cycle Time (tCK) min. = 10ns (CAS Latency = 3) / max. = 1000ns Row Cycle Time (tRC) 70ns CLK to Output (tAC) max. = 6ns (CAS Latency = 3) Single Power Supply of +3.3V (+/- .3V) Power 3.904 W (operating) UL Rating 94 V - 0 KVR100X64SC3/512 512MB SDRAM 144-Pin SODIMM PC100 Memory Module This document describes ValueRAM's CL3 64M x 64-bit (512MB) SDRAM (Synchronous DRAM) memory module. The components on this module include sixteen 32M x 8-bit (8M x 8-bit x 4 Bank components) PC100 SDRAM in TSOP packages. This 144-pin Small Outline DIMM uses gold contact fingers and requires +3.3V. The electrical and mechanical 64 Dollars for buy it now... someone please respond with a very definate and technical response =)? 12-28-2001 19:56:56

512MB - will it work? (modified 0 times) Georgie Profile Hi danvuquoc, I am sorry, that particular stick will not work. Put it another way, you will only see 256MB, instead of 512MB. The IO cannot use RAM chips with densities over 128Mb. 128Mb is OK (notice "b" and "B" here). So, for 128MB your SODIMM module needs to have at least 8 chips on it, for 256MB 16, for 512MB 32 chips. I actually doubt that you can find any 512MB SODIMMs for the IO. On the other hand, there is a great number of 256MB modules on eBay which will work in the IO. I already gave this same answer to another thread two months ago, but nobody seems to have read it... So, here it is again. I bought a 256MB SODIMM on eBay way back in the summer. It was dirt cheap at that time. ;) It is a low profile, 16-chip, CAS-2 PC100 SODIMM. Here is an image of my SODIMM. It is double-sided, i.e. the other side has 8 chips on it as well. It works flawlessly with CL2 at 110MHz, I have been using it at that speed since I bought it. You can find many of these modules up for auction on eBay, just keep watching this page and you will have your RAM in no time. Look for items with no reserve price. One to watch would be this. It looks like mine... In any case, do make sure that the module has 16 chips. That's all about it. Good luck! Georgie 12-31-2001 09:29:05

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) vailr Profile Don't buy the 256 MB Sodimm that "ACDCBuy.com" offers on eBay. Although it has 16 chips, 8 per side, and will be recognized correctly in the IOpener, it will produce HD errors when running Windows. The seller does not provide a picture of the module. The 16 chips are rectangular, about 8mm X 12mm, and not the square chips as shown in Georgie's image. 12-31-2001 10:44:22

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) Dadr Profile I suspect that vailr has hit the dreaded issue I've posted about. Some memories work in many I-Openers, but not necessarily all Rise-based units. It's a real pain. But more on topic, I found the following that qualifies a few kinds of memory for a different computer that seems to have the same needs as an I-Opener: http://usa.asus.com/notebook/l8400ce/faq.htm To make it short: Memory Chip Vendor: SAMSUNG Parts Number: KM48S160308N-FL Memory Chip Vendor: SAMSUNG Module Number: AD6198-02/464S3323AN Parts Number: K4S280832B-NL1H Memory Chip Vendor: KINGMAX Module Number: MSPB63S-682 P040192KX Parts Number: KSV684T4A1C-08A I also think (but not 100% sure) that HP P/N F1654B will work - as may any chips that are good for HP OmniBook 4150 PIII 500/650, OmniBook 6000 C550/C650, OmniBook 6000 PIII 600-850, or OmniBook 900 PIII 450/500/600/650 Also, vailr, can you give us the chips spec that are not working for you? Have you used other memory than what came in the I-Opener? Cheers 01-06-2002 12:20:34

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) vailr Profile The V3 IOpener works fine with a generic 128 MB Sodimm; CPU is a K6III+ 450 running at 66 MHz X 4.5=300 MHz; HD is Hitachi 6 Gb. OS is dual-boot Win98SE & WinXP. 01-06-2002 12:53:09

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) vailr Profile Not sure if: having modified the K6III+ CPU voltage to run at 1.64 volts, may have also changed the voltage the memory is getting? But, as stated previously, the 128 Mb Sodimm works fine. 01-06-2002 13:02:19

256M SODIMM works in many i-openers (modified 0 times) Dadr Profile I posted in detail here: http://www.linux-hacker.net/cgi-bin/UltraBoard/UltraBoard.pl?Action=ShowPost&Board=verytech&Post=85&Idle=0&Sort=0&Order=Descend&Page=0&Session=dadr.101148796734290 Basically, Costo has a part for $39.77 that works in many i-openers. Anyone up to sleuthing why so many of us are having trouble upgrading memory in V4Bs and V5s? Cheers 01-19-2002 18:56:31

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) KneuB_2 Profile | Email The bit about it being very unlikly to find any 512MB SODIMMs that would work in an i-Opener just sort of tweaked my curiosity. So for no really good reason I decided to look into the possibility of creating one just for giggles. I discovered that Intel provides the SODIMM PCB designs as downloads (gerber files included) for both 8 and 16 chip varieties and what looks to be enough tech data sheets to expand the SODIMM design concept as far as you have room (a lot of the information is in the .pdf files included with the ziped gerber files). But there was one little bit of info that finially caught my attention (it's been aluded to in prior threads) and that is the little EPROM. The tech documents define everything that you must include in an EPROM but it made me wonder how it ever gets flashed. Can a memory EPROM be flashed while it is in the PC the way a BIOS can be flashed? If so, could the contents of the EPROM have an influence on which memory works and which ones have trouble? If thats the case then the next obvious question would be, Can the memory that people have trouble with be flashed to correct the problems? 01-21-2002 23:31:17

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) Linuxguru Profile | Email The Serial Presence Detect (SPD) ROMs on some DIMMs/SO-DIMMs are likely to be OTP EPROM or mask ROM, given that the margins on memory modules have been very slim for the past couple of years. If it's an EEPROM, then it may be programmable. The serial signals to the SPD ROM are similar to the I2C protocol. However, that still doesn't help to solve the SDRAM configuration problem: the need for the memory controller to generate the initialization cycles that are required to configure the SDRAM chips for the appropriate latency, burst length, address width, etc. This requires chipset and BIOS support. 01-22-2002 13:38:11

Perhaps FSB has something to do with making memory work? (modified 1 times) Dadr Profile Greetings, I broke down and did the K6-2+ modification to my V4B. Added SW1 and SW2, bigbad resistor to Q16 and bigexpensive resistor to R302. I also removed R130 and R208. I tested various FSB frequencies with a 2.5 and 3.0 multiplier and with both the original 32M SODIMM and the most recent 256M SODIMM I purchased at costco. I got the 256M SODIMM to work, and work pretty well. I booted off sandisk into midori linux - this used to fail with the 256M SODIMM. I did not have a tool to test the "effective" fsb speed, but used the posting by why0 in the following as a reference: http://www.linux-hacker.net/cgi-bin/UltraBoard/UltraBoard.pl?Action=ShowPost&Board=technical&Post=1632&Idle=0&Sort=0&Order=Descend&Page=0&Session= The interesting thing is that it would not work with the AMD chip at 60 or 66MHz FSB, but started working as follows: with 2.5 multiplier: 70, 75, 80, 83, 105, 110, 124 MHz with 3.0 multiplier: 70, 75, 80, 83 MHz The original memory worked at these speeds and also at 60 and 66MHz for both multipliers. 100MHz worked at 2.5, but crapped out shortly after booting either memory. I hope this helps. 02-26-2002 22:44:40

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) RoKnRoL Profile PNY Memory Master upgrade kits also work. We have 2 macines running 128 mb each. Also it is now confirmed that the 266 mmx pentium mobile processor is a drop in replacement for the Rise 266. These processors operate on 1.9 volts. Bios sees it as a Tillamook 200mmx. Computer Geeks has these processors right now for $19 ! 03-27-2002 04:25:58

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) Linuxguru Profile | Email Mobile Pentium 266/MMX? The fastest desktop Pentium MMX was the P233/MMX. The fastest mobile (Tillamook) was the 166/MMX, or maybe the 200/MMX. I would be be very surprised if there was a 266/MMX. In any event, all the Tillamooks came in a special SMT TAB or PQFP package, not a regular socketable PGA. This calls for some research, IMHO. A 266 MHz Tillamook would not approach a K6-III, K6-II+ or K6-III+ in performance, but would have much lower power consumption. 03-27-2002 14:09:48

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) Linuxguru Profile | Email A quick Google search reveals that Tillamook 233 and 266 mobile CPUs were indeed commercially available. So the only issues that remain are the technical details (for use in I-Openers V1-5): Power consumption, multipliers, bus speed, performance, Vcore, cache, BIOS issues, etc. IMHO, its performance is not competitive with the K6-II+; however, if the power consumption is low enough, there are a bunch of embedded applications for which it may still be suitable in the PC/104 form factor. However, it has to beat the performance of the Rise convincingly, and be significantly lower in cost compared to the Via Eden/C3 for it to be useful to me. 03-27-2002 15:23:23

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) RoKnRoL Profile Yes it has 266 and 1.9 volts written on the processor and its a socket 7 format. We have 2 v5 io's with the rise processors and this processor dropped right in. However its only running at 200. I'm trying to figure out how to change this to get it to 266 but as you know ther is about 1 years worth of reading in this bbs. Whew my eyes hurt I thought $19 for these was reasonable. 03-27-2002 15:31:19

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) *SF* Profile These might Help ! Photos aren't mine. http://yourpage.blazenet.net/starfish/images/MULT.JPG http://yourpage.blazenet.net/starfish/images/FSBspeed.jpg 03-27-2002 15:48:55

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) RoKnRoL Profile Thanks for the info *SF* ! Mine has the 2 dip switches by the memory. You know me, have dip will switch :). Tried all different setting with switches and still reads 200. 03-27-2002 16:06:28

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) *SF* Profile You may need to remove some resistors !!! SW3...SW4....Correct Setting? Linuxguru 08-04-2000 03:43:27 As mentioned by Turbo3, Vcore (CPU core voltage) is set by SW4 on a V5. For reference, the settings are: Pos .2. .1. Vcore --- --- ----- off off 2.0 V off .on 2.2 V .on off 2.6 V .on .on 2.8 V As always, the engineers at Quanta have shown an outstanding consistency in connecting the lsb to the low-order index of the switch position. Using the the default FSB and PCI clock settings (66/33), the default multiplier (3x) and Vcore at 2.2v, the AMD-K6-III/333AFK (underclocked to 200 Mhz) is a drop-in upgrade that handily outperforms anything else for this socket. No fan required, either, so it's as quiet as the stock IO. 03-27-2002 16:14:09

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) RoKnRoL Profile Thanks *SF*, I'll read some more on the leads you gave me. Anxious to see if this processor is really worth anything. Sure is slow in XP tho running pio mode4. But alas that is what this bbs is for, making something outta nothing !! You guys are great !! 03-27-2002 16:52:42

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) Linuxguru Profile | Email Before adding or removing the multiplier resistors, does anybody know the FSB specs and multipliers for this Tillamook, i.e. is it 4x66 or 3.5x75 ? To the best of my knowledge, no desktop Pentium had a multiplier higher than 3.5, so how did they get to 4? Did they remap the multiplier settings for 2x of the Pentium classics to 4x? 03-27-2002 16:58:46

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) RoKnRoL Profile Linuxguru, is this what you were looking for ?/http://developer.intel.com/design/mobile/desguide/243571.htm 03-27-2002 18:37:31

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) Linuxguru Profile | Email Yes, the pdf document on Intel's site seems to have relevant info. But it would seem to rule out the use of the mobile P266/MMX in the I/O: 1) Vcc3 (Vio) is shown to be 2.5v, much less than 3.3v on the I-Opener and all other Socket-7 CPUs. 2) The I/O buffers are shown to be 2.5v tolerant only (this obviously refers to mixed 2.5v/3.3v operation, with the some other logic on the system board powered by 3.3v). If the Vcc3 spec can be worked around, then here is the excerpt for the multiplier specs: BF2 BF1 BF0 Mult (pin 184) (185) (186) 0 0 0 2/5 0 0 1 1/3 0 1 0 1/2 0 1 1 2/7 1 0 0 1/4 The addition of the BF2 pin and the 4:1 multiplier is the main change. FSB is 66 MHz thoughout, but perhaps 3.5x75 will also work. 03-27-2002 20:20:27

RE:Question about replacemnt SO-DIMM memory modules... (modified 0 times) RoKnRoL Profile Linuxguru, if your interested in playing around with the 266 processor I will send it to you. 03-29-2002 11:43:30

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