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Father's Day Memory

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by johngreer

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I have an IBM NetVitsa A30p (8310-48u) which came with 256MB of memory. IBM online doc says it's a PC2100 and I have a slot for another PC2100.

For Father's Day my kids gave me a new PC2100. They they used the IBM web site and the PNY web siteconfigurator to insure compatibility. The new DIMM is PNY part #D512M64210OPT. It installed fine and was recognized by the BIOS and Win XP Home.

My problem is that it "seems" like XP is dragging. I expected an improvement, but XP seems to studder, the mouse skips and overall system appearance "seems" worse. Why?

P.S. I downloaded a tool from cpuid.com called CPUZ. It says the old DIMM is a 2300 and the new DIMM is a 2700, even though they both say 2100 on the outside. Is this true, or is there another tool that will show me more accurate info?

12 replies

by darts32

Check the virtual memory settings. Right-click on My Computer and select properties. Go to the advanced tab and click on performance settings button. Then click on the advanced tab there and at the bottom is virtual memory settings. The easiest is to check the system managed size button. I believe the custom setting for min. is 12mbs over amount of system RAM or use the recommended setting displayed at the bottom.

This should speed up the system.

I am using XP pro but the place wherethe settings are should be the same.

by johngreer

Thanks, but that was the first thing I looked at when the system first booted. I hah (and still have) it checked to System Managed. I'm trying to reallocate the swapper by entering in some values, rebooting, then rechecking System Managed and rebooting again.

by ptreadway

Go to Majorgeeks.com,click on system Info.,down load AIda32 Enterprise.This will scan your system and give you all the info you need.

Hope this helps.

by johngreer

Alda32 says:

Module Size 256 MB (1 rows, 4 banks)
Memory Speed PC2100 (133 MHz)
Highest CAS Latency 2.5 (7.0 ns @ 142 MHz)
2nd Highest CAS Latency 2.0 (7.5 ns @ 133 MHz)

Module Size 512 MB (2 rows, 4 banks)
Memory Speed PC2700 (166 MHz)Highest CAS Latency 2.5 (6.0 ns @ 166 MHz)
2nd Highest CAS Latency 2.0 (7.5 ns @ 133 MHz)

Am I OK?

by fred07

Hi John,
Fun in the RAM I see. Briefly; any RAM installed in pairs or three's need to be of the same cas latency. In your case you may try putting the slowest cl in slot one.
I do always recomend to purchase pairs at same time, samemfg, same etc.
The slower cl in slot one SHOULD force the faster one to run at the slower rate.
I am concerned that the PC 2100 is running at 2300 and 2700. You may be okay but I will not hold my breath.
I wish you well and hopethis helps.
If you need to repost your question head it "hey TheChas" as he does understand this RAM sh== better than anyone I can think of. Wish he had seen this one.

by johngreer

I'm converned also about the 2100 showing 2300 and 2700. So much so that I removed the old DIMM and am running only with the new 512MB DIMM.

by johngreer

I am sooooo frustrated. I put off buying memory for so long for this very reason. I DO NOT LIKE the fact that both DIMMs say 2100 on the outside, yet appear different on the inside (where it counts). Ahhhhhhhhh.

by gar2n

HI! have you tried to change the virtual memory to
2.5 x the amount of ram on the system then reboot,
I noticed the same problem and found the system performed better after that,
GOOD LUCK!

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