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Help 256MB SODIMM
Can anyone point me to a source of 256MB SODIMM for the IO?

New MessageHelp 256MB SODIMM (modified 0 times) Werewolf
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Help please from all the old hands in the IO rank and file. I have come to many dead ends in trying to get a 256MB SODIMM for the IO from local sources. No-one seems to have the required 8 chips per side, even if the sales clerk agree to check the physical package (most tell me the memory all work the same, no matter how many chips). I have read the BBS and learned a few things, but the leads are not current anymore. Scanning eBay came up with nothing, I even bought from one vendor who showed a picture of 8 chips per side, turned out to have only 4 (he now does not answer my email). Can someone please point me to a current source who sells such an item? Or perhaps does someone have one lying around? Thank you all so much for you help.
This is not the real me, it's just the effect of the full moon.
04-08-2002 12:37:54

New MessageRE:Help 256MB SODIMM (modified 0 times) ckbone
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Circuit City.....Centron brand. 16 chips...works fine.
04-08-2002 14:40:31

New MessageRE:Help 256MB SODIMM (modified 0 times) 02U2
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Certain PNY Sodimms have 8 Chips per side too! Cost a little more though...Think they are up to $89 at C-USA...Ouch!
04-08-2002 16:11:26

New MessageRE:Help 256MB SODIMM (modified 0 times) Werewolf
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Thanks, CKBONE and O2U2. CC has both on their website, funny last time I looked there they did not. Also the local (Tacoma WA) store had none in stock 2 weeks ago when I went there. Both on the CC site are PC-133, but the Centon [sic] is listed as SDDRAM and the PNY a SODIMM. Assuming they both have 8 chips per side, will they both work (they don't mention parity etc). Thansk again.
04-09-2002 11:45:13

New MessageRE:Help 256MB SODIMM (modified 0 times) ckbone
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Look...you need a SODIMM, not sdram. SODIMM is a shorter memory stick, used mostly in laptops (and I-Openers).
04-09-2002 13:39:50

New MessageRE:Help 256MB SODIMM (modified 0 times) dscordia
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Hi guys,

I'm also looking for a 128 or 256MB sodimm for my V5. (Ever try opening mozilla at 200MHz and 32 MB? heh...get some coffee) I've tried a couple of sticks already but linux locks before execing init. (I'm running at the default FSB for the Rise proc--75?) I've seen conflicting reports in other posts about what will or won't work in a V5. Does anyone know if those centon sodimms work with the V5? If not, any idea where I should look?

Thanks to everyone for all the help I've been able to find on this board...this is the first question I've had that hasn't already been clearly answered before I needed to ask it.

04-09-2002 19:44:44

New MessageRE:Help 256MB SODIMM (modified 0 times) dscordia
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Just to post a followup to my own question, I bit the bullet and bought the PNY 256 SODIMM from my local Circuit City. It has 8 chips per side, and the chips are tiny-BGA (nearly square with no visible leads) rather than the more familiar TSOP layout (typical SDRAM chips, visible leads on both sides). I'm happy to say the DIMM works (so far) in my V5 running at default bus freq.

Hope this helps someone out there.

Thanks again to everybody.

04-12-2002 18:30:36

New MessageRE:Help 256MB SODIMM (modified 3 times) Finatronics
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HELP!!! I went to Circuit City yesterday and purchased the Centon 256MB card (I called in advance and asked if the PNY card had 8 chips per side, and he said yes, but when I got there, it was only 4 per side! So, I bought the Centon instead...). I plugged the Centon card in my I-Opener and it detected the right amount. However, I have heard of people with booting problems, where it detects the correct amount, but won't work correctly with it. I decided to do a memory test using GoldMemory http://www.goldmemory.cz/ and it failed at 8%. I plugged the same card into my laptop and ran the test and it passed. Today I tried it again in the IOpener, but it again failed at 8%. It's odd to me that it detects the correct amount, yet won't work... Any ideas? Could it have to do with the version of my IO? I believe I have a V4...
I also noticed it (the RAM) was very hot when running that test. Shouldn't be, it's PC133 and it's only running at 100Mhz, right? Could there be a voltage problem? Could the V4 IO supply 5V for the SODIMM, while the card I have may require 3.3V? It worked fine in my laptop and wasn't even half as hot (though, it's running at 66Mhz...). The only other 256MB cards at my "local" (round trip was 4 hours yesterday, by bus!) Circuit City are PNY with 4 chips per side...
Could someone post a specific card that they're using that works? I'd like to know numbers... part numbers, etc. For instance, the card I purchased says the following (important information only) on a white label:
RSSB1608-75A
256MB PC133 CL3

another white label says:
256MBLT133

and the chips say:
RAMAX
SDR16M8-7K

If you have an identical card, could you run GoldMemory on your system to verify that it works 100% perfectly for me?

Thank you!

Eric

06-27-2002 18:21:57

New MessageRE:Help 256MB SODIMM (modified 0 times) Wild_Pencil
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Finatronics,

Are you using any of the Enhanced BIOS versions -- i.e. any version higher than 5.0.0?

The enhanced BIOSes include a Memory-Interleave tweak by Programmer that DRAMATICALLY improves the memory speeds. Try downloading and using the 5.40 BIOS from my Yahoo Briefcase and see if it helps.

-WP

06-29-2002 20:15:08

New MessageRE:Help 256MB SODIMM (modified 0 times) vailr
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\ http://briefcase.yahoo.com/Wild_Pencil
06-30-2002 15:03:01

New MessageRE:Help 256MB SODIMM (modified 0 times) Finatronics
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WP! Glad to see you're back (I haven't been keeping up lately, maybe you came back a while ago?)
Got both your messages suggesting this so thought I'd try it. The BIOS update didn't change the memory speed at all... according to Gold Memory. Sure, it's a shareware program that I haven't registered, and it's from the Czech Republic, causing some people to question it's validity (I never saw a problem with it...). Seems to me, though, that it reports the speed that it can communicate with the RAM at, and that speed didn't change even 1MB/s from the upgrade :/
I ran GM on a couple other machines since I posted these messages, and the RAM on a Pentium 133 with a 66Mhz bus and 72pin simms running at 60ns goes 68MB/s. This PC-100 RAM (10ns) running in Turbo Mode (and trying alot of related settings) on the IO with a 200Mhz processor and a 66Mhz bus (is it 100?) gets 36MB/s with CL3 or 38MB/s with CL2 at 32MB and 30MB/s with the PC-133 256MB stick (I know it only runs at the Bus speed... but it shouldn't go DOWN in speed, should it?!).

I'm trying to test to see if the new BIOS will allow the 256MB stick to work without failing at 8%. I'm going to bed and will see what it says in the morning (oh wait, it's already morning!). If it fails, I'm returning it and giving up.
I'm still wondering if this is a caching problem. The older computers only had enough cache to handle 64MB of RAM, any more and it would be uncached, causing the system to slow considerably. Now that I think about it, I don't see any cache on the Mobo at all! Wonder if that's why it's so dreadfully slow with the RAM no matter how much is installed. I can give you some links about caching and memory speeds, if you're interested. It was a big deal with the Intel TX/VX chipsets because they were made to treat all RAM the same, turning off the cache completely if there was more than 64MB, whereas other companies left the cache on for the memory it could cache (first 64MB) and the additional memory was dreadfully slow...

Thanks for the advice, if nothing else, I'm glad to see you're still working with the IO and it's BIOSes :) (any news on the Floppy port? It's no longer a priority, but it'd be cool!).

Eric

07-01-2002 05:40:46

New MessageRE:Help 256MB SODIMM (modified 0 times) Finatronics
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Well, it failed again... this time it passed 8% and went on to 9% before I went to sleep. I had my hopes all up, then woke up about ten minutes ago to find it had failed at 45%. Not sure whether the extra percentage is due to the new BIOS or different settings I chose within the BIOS. I did notice that the RAM wasn't nearly as hot as before (odd, since I'm running CL2 instead of CL3, which it says on the card). Which reminds me, I'll give it one more try at CL3... maybe it was too fast for it. The speed has gone down to 28MB/s due to selecting CL3 vs CL2, we'll see if it fails this time.

Eric

07-01-2002 10:37:25

New MessageRE:Help 256MB SODIMM (modified 0 times) Finatronics
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And this time it froze at 19% (not failed, though). This is too unreliable for me... I'm not even going to try to make it work anymore. Popping the 32MB card in and testing it again for an hour or two to make certain it's not the processor... then I'm giving up. Thanks again for your help.

Eric

07-01-2002 12:53:20

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