Techsurvivors

Archives => 2007 => Topic started by: ADSR on October 04, 2007, 08:06:53 PM

Title: RAM WALLSTREET
Post by: ADSR on October 04, 2007, 08:06:53 PM

For a wallstreet  256 MO ram upgrade what would be the right choice..?

I think i must look for 144 pin ...so-dim

Are the pc 133 compatible...?

Thanks

GR

Title: RAM WALLSTREET
Post by: chriskleeman on October 05, 2007, 08:07:42 AM

QUOTE(ADSR @ Oct 4 2007, 09:06 PM) <{POST_SNAPBACK}>

For a wallstreet  256 MO ram upgrade what would be the right choice..?

I think i must look for 144 pin ...so-dim

Are the pc 133 compatible...?

Thanks

GR

If this is the machine, here are the specs, including what you'll need for RAM:

Wallstreet

HTH,

CK

Title: RAM WALLSTREET
Post by: ADSR on October 05, 2007, 09:40:58 AM

Thanks for the link ...but  are the pc 133 compatible..?


GR

Title: RAM WALLSTREET
Post by: chriskleeman on October 05, 2007, 11:17:22 AM

QUOTE(ADSR @ Oct 5 2007, 10:40 AM) <{POST_SNAPBACK}>

Thanks for the link ...but  are the pc 133 compatible..?


GR

GR,

The link from Everymac.com would indicate that the memory is PC100. This link from OWC also shows only PC100.

Memory

As far as I can tell, that's what you'd need to use unless someone knows any differently.

HTH,

CK

Title: RAM WALLSTREET
Post by: Xairbusdriver on October 05, 2007, 11:41:26 AM

You might want to check at other sites, also:
<MacGurus>
<RAM Jet>
<OWC>

Title: RAM WALLSTREET
Post by: jepinto on October 05, 2007, 02:45:51 PM

According to OWC's tech support pages

QUOTE

PC-133 and PC-100 memory modules are backwards compatible. You can use a PC-133 memory module in a system designed to be used with PC-66 without any issues. Higher speed memory modules always default to the highest CAS latency rating at slower speeds.

For example, a PC-133 CL3 (3-2-2) chip will run at either PC-100 or PC-66, CL2 (2-2-2) operation.

If you purchase a PC-100 memory module and receive a substitute PC-133 module, it is a comparable substitution without any compromise or speed degradation from a native PC-100 part.

Occasionally, Apple System Profiler will incorrectly report the memory as slower, or 3-2-2 memory, when it is actually programmed correctly for the backwards compatibility. Most notably this can occur with Apple Power Macintosh G4 "AGP" "Sawtooth" logic boards, and also Apple Power Macintosh G4 "Cube" systems. Rest assured, if you perform a moving memory test using Gauge Pro (included here in the OWC Tech Center in the Newer Technology downloads), you will see that there is no speed degradation using this memory. Simply put. the memory controller on the system’s logic board is not programmed to recognize PC-133 memory modules properly - they will function perfectly, just report an incorrect speed.

So, YES.

Title: RAM WALLSTREET
Post by: ADSR on October 05, 2007, 02:49:53 PM

GR

Title: RAM WALLSTREET
Post by: jepinto on October 05, 2007, 03:00:52 PM

And even though you probably know this... the bottom ram needs to be LOW profile.

Apple's DIY instructions.

Title: RAM WALLSTREET
Post by: krissel on October 05, 2007, 11:40:42 PM

Suggest you get a low profile even if this is for the top slot. That way you have the ability to swap slots if you suspect RAM problems.

Also would advise the 100PC as it probably would be less likely to give you any trouble. Some Lombards were particularly picky about the speed rating with the larger chips since those earlier G3s were not originally intended to run the larger chips.
I don't remember whether Wallstreets were as picky.

Also if you are going to have two 256s in the Wallstreet and want to run Panther, please be aware that you may have some difficulties with running Permissions. You have to remove one of the RAM chips to run Permissions or you will get panic attacks or video meltdown. You can put the second chip back in afterwards.

I have 512 in my Wallstreet and running 10.3.9 with the help of XPostFacto.

Title: RAM WALLSTREET
Post by: chriskleeman on October 06, 2007, 12:39:10 AM

Thanks Kris.

I was hoping you'd chime in on this thread, as I knew you have a working Wallstreet!

CK