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add PC100 memory chips

Last response: in Memory
March 13, 2005 4:11:50 PM

I have a 500 Mhz Etower Is and a 433Mhz Powerspec 4720 and would like to substantially increase the memory. There are now Pc100 chips from Kingston available to to 512mg and I would like to add 2 to each system, is this possible? If not can a add 1 512mg and 1 128mg chip?

More about : add pc100 memory chips

March 13, 2005 4:37:27 PM

You will have to check what ammount of memory the motherboard supports. A lot of older boards cannot support huge ammounts of memory or single modules bigger than 256MB. What do you need the extra RAM for? Seems like a bit of a waste of money to me, a 256MB module would prolly be worth more than your entire system.
March 13, 2005 5:59:42 PM

I have a 500 Mhz Etower Is and a 433Mhz Powerspec


Who's the man with the master plan?
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March 13, 2005 8:05:37 PM

You have to be careful in what you buy. If your running windows 98 u can't use more than 512.

<b> Read you manuals !!!!!!! </b>

Many boards around that time has a limit of 512 or 768. Further each slot was limited to 256MB of dual sided (16 chip) sticks.

Are these both Slot 1 CPUs?

What are the motherboards? You can try Sisoft Sandra or aida32 (freeware versions and very nice).

Oh BTW, PC133 SDRam will work in those slots too.

The loving are the daring!<P ID="edit"><FONT SIZE=-1><EM>Edited by Flinx on 03/13/05 05:06 PM.</EM></FONT></P>
March 13, 2005 10:16:32 PM

I know that my systems are old. I also know that I'm probably considered an obsolete user with obsolete equipment. However like the turtle, I am slow but normally finish what I start.
I'm retired and can't afford to buy new computers evertime I turn around. I'm trying to do a little tutoring on the side, and needed the additional memory for some of the lessons on photography and basic computer software and hardware. I do have a small network running Win95, Win98se, Win 2000, Win XPpro and am playing around with Linux. I'm pretty good at software, but not so hot on hardware. I don't understand clock speed, and all the technical stuff dealing with memory.
I could sure put these to good use if I could get the memory up to 640. The specs on both allow for a maximum of 512,, but that is not quite enough.
Thanks for your comments
March 13, 2005 10:50:54 PM

Actually, ignore that last post of mine, I'd just come in from work an was tired, I read it wrong I thought you posted:

"I have a 500 Mhz Etower 433Mhz Powerspec" - or something like that! :eek: 
Who's the man with the master plan?
March 14, 2005 8:13:20 AM

You dont have to drop a huge amount of money to build a decent system, Since your retired im guessing you dont play games? This system will rock your old system for around 600$

ASUS P4R800-VM 110$ Canadian
Pentium 4 2.4e 160$
Samsung infineon 2 X 512MB PC3200 Ram 150$ canadian
Budget case with PSU - 40$
CDRW -35$
80GB Hard Drive 90$ canadian

This is a decent machine for your needs and wont be outdated to the point you cant use it for 5+ years. You dont have to give heavy into hardware to know what your talking about. I would recommend sinking a couple extra hundred dollars into a new system as opposed to trying to upgrade your ancient machine, you need more help feel free to pm me.
March 14, 2005 2:38:49 PM

First let me thank you for your reply, the Asus is a good system, and I know you are right, but I'm only getting $827 from ssn and paying $16000 a year in health insurance and can only survive because of my wifes ssn. It's really a no brainer for me (I don't have that much). All I'm trying to do is bring some income in to try and restore my self esteem which is pretty low right now. Excuse me if I sound like I'm feeling sorry for myself, It's just life, and I'm determined to find a way to overcome ( matter of fact I'm plumb mad at the beaurcracy of ssn) the current obstacles I'm encountering. Like the turtle, I'm slow but not a quitter. Once again my sincere thanks for your reply
March 14, 2005 2:48:44 PM

You read it right. I can get the 512 chips for $75 a piece, I have the 128 chips, harddrives, network cards and monitors which are mainly hand me downs from friends who have purchased new ones. I've replace most of the compnents with what I have on hand and can get 2 systems for the price of 2 chips if I can figure out if they will work, which is what I'm hoping to do. FYI - In the past, I've wired the house for networking, and have my wife's sewing machine connected to the internet, so I'm aware of all you guy's advice and have taken it into perspective. Thanks anyway
March 14, 2005 6:13:24 PM

I would be careful about the 512MB chips. I have a couple old Gateways here at the office - one's a 450Mhz P2 that can only use 128MB SDRAM (fortunately it has 3 sockets). The 400Mhz Celeron can use 256MB per SDRAM, but only has 2 sockets (and they were both bought at the same time).

Powerspec has a good website where you can find out the specs of your motherboard and what capacity RAM it can use I think it's I don't know about the other one, but they may have a similarly useful site.

Anyways, making the assumption that the 512MB SDRAM works on the mobos, yes, a 512 and a 128 should play nice together.

March 14, 2005 9:34:14 PM

I finally found a manual for the supermicro 370swd motherboard using the intel celeron ppga processor and it defines the memory as 3.3v, 168pin, dimm sdram however the chip must be sdram because of the intel 810 chipset. Kingston has both a 512 and 256 chips with the same specs, so I think maybe I'll try the 512 chip. Thank you very much and if there any more thoughts please advise.
March 14, 2005 9:42:34 PM

First of, let me thank you for your response, it's appreciated.
Secondly, I finally found a manual on the powerspec, it has a supermicro 370swd motherboard with an intel celeron ppga processor.
The specs according to supermicros manual and according to kingston are identical. Both are 3.3v, 168 pin pc100 sdram. I'll be running XpPro on it if if if??? If you have any more thoughts on the subject please advise.
March 14, 2005 10:03:58 PM

I once put a 512MB module in an ABit BH6. It only showed 256MB.. Got very very hot and burned before I could replace it (had the 256MB when I came home). I think it overtaxed the "coil" which is slightly blackened.

Took 8MB of graphics memory with it and I can't use anything but 8bit graphics.

Don't suggest you try 512MB modules!!!

The loving are the daring!
March 14, 2005 10:05:56 PM

You better make sure you can use a 512MB module. Because 512MB SDRAM modules are normally built using (32Mx8) chips, which is considered a high density chip for SDRAM.

Many older PC-100 motherboards do not support (32x8) configurations. This also includes 256MB modules built from (32x8)

"Memory with lifetime warranty? So, whose lifetime is that?"
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March 14, 2005 10:14:31 PM

I have a bunch of older spare parts, mb's, cpu's, memory, etc.

PM me Floyd if you are interested. If it'll help ya, you can have it.

<b><i>Powered by <font color=blue>V</font color=blue><font color=purple>E</font color=purple><font color=red>R</font color=red><font color=purple>T</font color=purple><font color=blue>O</font color=blue></b>
Fueled by <b><font color=blue>CL-</font color=blue><font color=red>ONE</font color=red></b>
March 14, 2005 10:39:49 PM

Honestly I would recomend upgrading ur entire system, my 1.1Ghz Athlon T'bird is now worth about £10. It would cost u a tiny ammount to upgrade to such a system and it would really increase your performance.
a b } Memory
March 15, 2005 4:17:20 AM

First of all, if you have an 810 or 815 series chipset, you're limitted to 512MB TOTAL RAM. And probably 256MB/module. And if you have one of the earlier (better) chipsets, you're limitted to 256MB per module with a max density of 16MB/chip.

<font color=blue>Only a place as big as the internet could be home to a hero as big as Crashman!</font color=blue>
<font color=red>Only a place as big as the internet could be home to an ego as large as Crashman's!</font color=red>
March 15, 2005 6:06:53 PM

I don't know what you mean by 16 bit density.
The chips I'm looking at are Kingston Value ram 512 chip specs described as 16 each 32m x 8 bit x 4 bank, and the 256 chip as 16 each 16m x 8 bit x 4 bank. Both have the 3.3v, gold contacts and are 168 pin Sdram Dimm modules.
March 15, 2005 6:16:11 PM

Thanks for your advice. According to the vendor (kingston value), the chips I'm looking at are 1) 512 chip specs described as 16 each 32m x 8 bit x 4 bank, and 2) 256 chip as 16 each 16m x 8 bit x 4 bank. Both have the 3.3v, gold contacts and are 168 pin Sdram Dimm modules.
PS - the lifetime warranty is just like a cars, lifetime and or until you drive it out of the dealers lot.
March 15, 2005 6:19:03 PM

Thank you for the offer. I don't know at this point what I'm going to do. I will get back to you when I've figured it out.
March 15, 2005 6:59:23 PM

If you are on a budget try they have 100's of PC. a PIII 1.0gig is like $150.00. your 2 sticks of memory could come close to that. Get one and use your old computer as parts for the newer one(memory,2nd harddrive).
March 15, 2005 9:57:41 PM

you will have probklems with more than 512MB on Win98

The loving are the daring!
a b } Memory
March 16, 2005 4:48:35 AM

I never said 16 bit density. I said 16 megabytes per chip. As in 8 chips providing 128MB, 16 chips providing 256MB. There are other ways to word it, but I've seen multiple configurations for the same name, so I just count the chips. The 16MB/chip limit applies to BX/ZX/LX/EX/TX chipsets, which were used for Pentium/PentiumII/early PentiumIII/Celeron processors.

Later Intel chipsets (810 and 815 series) supported higher density, but had a 512MB total RAM limit.

VIA chipsets always had higher RAM limits, which was the only good thing that could be said about them.

<font color=blue>Only a place as big as the internet could be home to a hero as big as Crashman!</font color=blue>
<font color=red>Only a place as big as the internet could be home to an ego as large as Crashman's!</font color=red>
March 16, 2005 2:41:36 PM

tried retrofit, and searched for all units all configurations for up to $500 with no results. thanks for the suggestion, I'll check it out periodically.
March 16, 2005 2:46:05 PM

Make that retrobox, sorry about that.
March 17, 2005 2:54:40 PM

I believe it may be my browser, it's been activing wierd since the last security update. I'll try again. I have added it to my favorites. Thanks again.
PS I decided to go ahead and get 2 256 chips, I have it in writing that they guarante the powerspec will work or money back, and it they burn up the system, I really haven't lost much since it isn't very useful except when running Linux.