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 Here are just a few of your letters,  I hope that this will answer most all of your  questions,  if not just ask. 


Sun, 17 May 1998 03:40:47 -0400

I was getting a little nervous as the fedex guy didn't show until noon but:

I recieved the 3-128 meg pc-100 today(Saturday) as we discussed yesterday. This was very important to me.  I installed the memory, booted up the new se440bx and life is good.  Ran set up for ecc. No problems. Running Great. The previous outfit said that they sent pc-100 compliant 10ns but the board wouldn't go for it.  Had to return it. I am alot happier knowing that the correct high quality brand name ram is on the board.

So, service and quality are excellent.  Mark me down as one satisfied Customer.

Thanks again.

M T M



Mon, 18 May 1998 11:32:01 -0700
 
Can a PC100 compliant memory function in a non PC100 compliant motherboard?
 dy
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Both of my factory reps indicated yes, that pc100 memory is backward compatible. Just like an eeprom dimm will function in a motherboard that does not require it.
Steve


Fri, 15 May 1998 21:13:35 +0200

 What is CAS? Is a rammodule with CAS2 100MHz faster than a rammodule with CAS3 100 MHz?

Would you give me a CAS-lesson?

Greetings from S
--------------
Howdy:

When your computer scans a block of information into or out of a memory module it does so in a repeating pattern of rows and columns. This pattern is synchronized to the bus clock of your system. Memory with a cas latency of 3 switches from one column to the next column once every three clock tics.  Memory with a cas latency of 2 switches from one column to the next column once every two clock tics. So yes indeed, memory with cas 2 @ 100 MHz is faster than memory that is rated as cas 3 @ 100 MHz.

I am working on an animated illustration of this concept, that will be placed at our website at www.pc100.com Please check back in a few days as I hope to have it done soon.
 



On  7 May 98 at 19:29, YCJ wrote:

> I have several questions regarding pc-100 memory. I have been  looking for pc-100 memory for a long time, and I haven't seen any one describes their memory specs this detail. There are three brands  of pc-100 memory that I concern right now( Samsung, Goldstar, and  Hitachi). I know that Hitachi has 6 ns pc-100 memory in the market  right now. Are they really running at 6ns? Which of these three brands is most stable for running at 133 mhz? Also A.... (www.a......com) sells Goldstar 7 ns 64 MB pc-100 memory for only $129, why your price is so expensive?
>
> Please reply, thank you!
---------------------
Howdy:

It is my understanding from the engineer at one of my memory factories that the -6 Hitachi parts are not 6ns, for that matter they are actually plain 10ns at that. Go figure. I tend to get excited about the new technology myself, but since I find myself in the position of "acting know it all" I have been checking the facts. I fell for that one myself until I talked with the engineer who tests the modules personally. The only parts from Gold Star that I know about are not just 7ns but also cas2 @100 MHz are marked GM72U66841DT-7K. The parts that are marked -7J are cas3 @ 100MHz
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
I went to go look, I can not believe my eyes, about that there $129.00 64MB 7ns memory, something wrong with this picture.
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
My cost factory direct last week on the 7ns stuff is more than double and a half of that. For that matter I can not even get close to that price for the 10ns pc-66 memory. Sure I don't move millions of dollars of memory every week myself, but let's just say that I sell more than a couple of sticks once in a while. I've got two factories fighting over me right now and a third that is asking for the chance.

RULE of THUMB... things that seem too good to be true usually are.

If I were you I would be on the phone first asking if that is a typo there. Second calling some of their references and asking if they ever heard of them. If these guy's are for real I will start another subsidiary just to market their products and take a ten per cent margin. Please note: the top of the page advertising this "pc100" memory has the following notice at the top of the page.
*ALL SIMM SPEED IS 60NS. ALL DIMM SPEED IS 10NS, SDRAM IS UNBUFFERED.

As far as overclocking to 133 MHz I haven't the slightest clue. The best references I can suggest are at
http://www.tomshardware.com/cpuslot1.html and http://www.tomshardware.com/overclock.html

If  Tom thinks and says that you are crazy to try a particular kludge I would tend to trust his word, he has been at the burnt smoking silicon melted back into plain sand messy ragged bleeding edge for a while now. The highest bus speed number that I saw there was 112 MHz

 I quote"  I consider everyone as really crazy, who runs his business software on a system with a highly overclocked Deschutes CPU.  Nevertheless, keeping in mind that you can run into system crashes at any time, overclocking works pretty well in the following cases:

    Pentium II 333 to 350/100, careful at 400/100  (requires motherboard that let's you choose 100
    MHz FSB) Pentium II 350 to 392/112, possible L2cache issue, possible PC100 SDRAM issue at 112
    Mhz Pentium II 400 to 448/112, possible L2 cache
  issue, possible PC100 SDRAM issue at 112 Mhz

 People that overclock to more than that either post this to make themselves look important without using  the system at this speed or they must be considered as a bit crazy. "

I hope that helps, if not perhaps you should look into starting an overclockers anonymous web site.



Could you give me the specs listed on the DIMM itself?  I'm particularly interested in both the number and letter combination that defines the chip type and the PC100 spec listed on the chip (the PC100 spec lookslike 'PC100-XXX-XXX' where X represents an unknown number).  If the DIMM is actually a CAS 2 @100mhz, then the spec will be PC100-222-XXX.  The PC100 spec defines the operating parameters that the SPD EEPROM will report to the motherboard and that the chip will operate at...  Thanks!
J Z
----------------------------------------------------------
Thank you for your excelent question. I finally got with the engineer at the factory today who tests conformance with the specifications and got my facts straight. I have both 8ns and 7 ns parts available now with the PC100-222-620 specification. They are fast movers so at times I may have a one day lead time maximum on a specific configuration.

Thank you SO MUCH! for your WWW.PC100.COM page.

I am retailer and my customer was baffled when my RAM prices were TWICE those he was checking out. My prices are usually the best he sees and he buys from me all the time.  So I went investigating, and thought, SOMEONE must have SOME info and a shot in the dark I entered in www.pc100.com intomy browser.

Thanks for taking the time to explain it properly and thoroughly.  My customers can now be better informed, and it makes me and my business, once again, on top of the myths and mis-information.

D at M E



>     What is your price for a 128MB SDRAM 3.3V 8ns 16X64SD8N DIMM?
>     Also,  I've seen PC100 memory advertised as being available in ECC.  Is  this available or is this just an advertising scam?  After reading  your article at www.pc100.com, I have the impression that high  standards are already built into PC100 memory because of the speed  it runs at and therefore, ECC is already built into the architecture of the memory module.  However, if I am wrong about this and ECC isavailable in PC100, would it be worth the purchase and what are the benefits over standard PC100 memory?
  Thank you,
> T  S
--------------------------------
Howdy:

please visit http://pc100.com/memory.html  for current prices.

ecc is usually one extra chip for each eight chips, that is one extra bit for every eight bits for error checking purposes. ecc is for network servers and mission critical applications.

Quality can be often relative to performance demanded. Memory that has great safety margins at 66 MHz can crash hard at 100 MHz.

We sell ONLY grade A, major manufacturer memory chips constructed to OEM/JEDEC standards on quality PCB's. Both of our factories are quality certified to ISO-9002 and or ISO-9001 international standards, and are located here in the USA. All memory comes with a lifetime replacement warranty. You may find memory that costs less, but be sure to ask if it is Grade A, OEM, JEDEC standard quality, to protect your valuable data.

Please let us know if we can help!

Steve and Nicole Frahm the Memory Store
http://www.memorysource.com/   http://www.pc100.com/
800-989-4RAM (4726)  1-915-856-8647



On 23 Apr 98 at 8:02, LNUS wrote:

 > Can SDRAM other than PC-100 complient be used on the BX boards?
 
 Howdy:

It is my understanding that yes, the non pc100 memory should work, but at only 66MHz bus speed. That is1/3 slower than the 100MHz bus speed available on a BX motherboard. I intend to put up a couple of  shareware benchmark programs for potential customes to download to facilitate proving who's memory runs the fastest.



 On 23 Apr 98 at 1:30, C N wrote:

> From:          C N
> Date:          Thu, 23 Apr 1998 01:30:03 EDT
> To:            steve@memorysource.com
> Subject:       Your Prices

> Web site is great, easy to use.  Your prices stink.  "brand X"  makes their own stuff, have a lifetime warranty, and prices are LESS  than HALF of yours.  Sorry, maybe you should buy from them.  They are in California somewhere, try the 1-800 directory because they  have a toll-free number. Later -
------------------------------
Howdy:

Thank you for your criticism. I will check out "brand X" , but only sell modules made in USA with grade A chips. I have been wondering however, where everbody has been getting all of the cheap stuff from.

Howdy:

I called S at "brand X" today with thanks, they may be a new source for my volume customers, we shall see. I am going to place an initial test order with them tomorrow. Anyway, they do not have any 125 MHz -8 nano-second parts in stock at all for another week or two, their prices are for 100MHz  -10 nano-second modules.
You do get what you pay for!

Late-
S

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