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Did I get ripped off on ebay?

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Anonymous
a b K Overclocking
a b } Memory
March 24, 2005 12:38:27 AM

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

I just got some memory today that I bought on ebay. The description read:
------------------------------------------------------------------
Kingston PC3700 512MB (256x2) Kit DDR KHX3700K2/512 CL3 *Like New*

This is an auction for a like new Kingston KHX3700K2/512 PC3700 512MB
(256x2) HyperX Dual Channel 466 Mhz Unbuffered Non-ECC DDR SDRAM Kit.
I've had it for less than a year and am selling it because I recently
upgraded my system. HyperX memory, and most memory sold with thermal
plates, is made for overclocking and I bought it without knowing this,
so it has been more than what I need. For those who wish to know,
according to the reference sheet found at Kingston's website, the
factory timing for this set is 3-4-4-8-1 at +2.6V. This memory DOES
downclock to slower speeds, as I was running it on 400Mhz (PC3200) while
I still used it.
------------------------------------------------------------------
Here is how Sandra identifies the ram:

Memory Module(s)
Memory Module 1 : Kingston 02380C99 256MB 8x(32Mx8) DDR-SDRAM
PC3200U-333-650 (CL3 up to 200MHz) (CL2.5 up to 167MHz) (CL2 up to 133MHz)

Memory Module 2 : Kingston 03380C99 256MB 8x(32Mx8) DDR-SDRAM
PC3200U-333-650 (CL3 up to 200MHz) (CL2.5 up to 167MHz) (CL2 up to 133MHz)
---------------------------------------------------------
Here is how CPU-Z identifies the ram:

Memory SPD


DIMM #1

General
Memory type DDR-SDRAM
Manufacturer (ID) Kingston (7F98000000000000)
Size 256 MBytes
Max bandwidth PC3200 (200 MHz)
Part number K
Serial number 02380C99
Manufacturing date Week 30/Year 03

Attributes
Number of banks 1
Data width 64 bits
Correction None
Registered no
Buffered no

Timings table
Frequency (MHz) 133 166 200
CAS# 2.0 2.5 3.0
RAS# to CAS# delay 2 3 3
RAS# Precharge 2 3 3
TRAS# 6 7 8


DIMM #2

General
Memory type DDR-SDRAM
Manufacturer (ID) Kingston (7F98000000000000)
Size 256 MBytes
Max bandwidth PC3200 (200 MHz)
Part number K
Serial number 03380C99
Manufacturing date Week 30/Year 03

Attributes
Number of banks 1
Data width 64 bits
Correction None
Registered no
Buffered no

Timings table
Frequency (MHz) 133 166 200
CAS# 2.0 2.5 3.0
RAS# to CAS# delay 2 3 3
RAS# Precharge 2 3 3
TRAS# 6 7 8

--------------------------------------------------

The stickers on the heat spreaders match his description. Do you think
the seller switched heat spreaders and put them on a set of PC3200's or
is this even possible without bending them? I tried to figure out how to
remove them to see what was underneath but decided not to for fear of
damage. Does CPU-Z (ver 1.26 dec 2004) read the SPD data correctly no
matter what board the memory is installed on? My board is a Biostar
M7NCG 400 (PC3200 max) but that shouldn't matter to CPU-Z or sandra, or
does it? Did I get reamed?

More about : ripped ebay

Anonymous
a b K Overclocking
a b } Memory
March 24, 2005 10:25:38 AM

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

On Wed, 23 Mar 2005 21:38:27 -0600, M. Bezzel wrote:

[snip]
> The stickers on the heat spreaders match his description. Do you think
> the seller switched heat spreaders and put them on a set of PC3200's or
> is this even possible without bending them?
[snip]

What you should do is get the tiny numbers off the actual memory chips
themselves, go to the manufacturers technical data spec sheets at their
website and check from the horse's mouth the ratings for those chips!

Larry Gagnon, A+ certified tech.
Anonymous
a b K Overclocking
a b } Memory
March 24, 2005 1:36:22 PM

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

"M. Bezzel" <feesa@sbd.net> wrote in message
news:1144dhlecd0i3de@corp.supernews.com...
>I just got some memory today that I bought on ebay. The description read:
> ------------------------------------------------------------------
> Kingston PC3700 512MB (256x2) Kit DDR KHX3700K2/512 CL3 *Like New*
>
> This is an auction for a like new Kingston KHX3700K2/512 PC3700 512MB
> (256x2) HyperX Dual Channel 466 Mhz Unbuffered Non-ECC DDR SDRAM Kit. I've
> had it for less than a year and am selling it because I recently upgraded
> my system. HyperX memory, and most memory sold with thermal plates, is
> made for overclocking and I bought it without knowing this, so it has been
> more than what I need. For those who wish to know, according to the
> reference sheet found at Kingston's website, the factory timing for this
> set is 3-4-4-8-1 at +2.6V. This memory DOES downclock to slower speeds, as
> I was running it on 400Mhz (PC3200) while I still used it.
> ------------------------------------------------------------------
> Here is how Sandra identifies the ram:
>
> Memory Module(s)
> Memory Module 1 : Kingston 02380C99 256MB 8x(32Mx8) DDR-SDRAM
> PC3200U-333-650 (CL3 up to 200MHz) (CL2.5 up to 167MHz) (CL2 up to 133MHz)
>
> Memory Module 2 : Kingston 03380C99 256MB 8x(32Mx8) DDR-SDRAM
> PC3200U-333-650 (CL3 up to 200MHz) (CL2.5 up to 167MHz) (CL2 up to 133MHz)
> ---------------------------------------------------------
> Here is how CPU-Z identifies the ram:
>
> Memory SPD
>
>
> DIMM #1
>
> General
> Memory type DDR-SDRAM
> Manufacturer (ID) Kingston (7F98000000000000)
> Size 256 MBytes
> Max bandwidth PC3200 (200 MHz)
> Part number K
> Serial number 02380C99
> Manufacturing date Week 30/Year 03
>
<snip>
Please correct me if I'm wrong, but you're running the memory at 200MHz,
right?

1. The seller probably only knew what was printed on the stickers.
2. Sandra is only telling you the speed *you* are running the memory at.

The only way to tell if what you bought will run at PC3700 speed is to try
it. Your problem there is that other factors beside the memory could cause
the attempted overclock to fail.
Tearing the heat spreaders off the memory will give you some more numbers to
research, but *may* damage the memory. The only heatspreaders I ever
installed came with sticky two sided thermal tape to place between the chip
surfaces and the sink. No telling how tightly that stuff adheres to the
chips once heated up.

From a practical standpoint, if the memory is doing what you want it to do,
why worry? You purchased used stuff through a venue that gives you little
support if the transaction is unsatisfactory and you bought from an unknown
party. Presumably to save money? If you're that worried about being "ripped
off", why didn't you buy new from a reputable vendor with good customer
service policies?
Related resources
Anonymous
a b K Overclocking
a b } Memory
March 24, 2005 2:55:59 PM

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

"Peter van der Goes" <p_vandergoes@toadstool.u> wrote

> why worry? You purchased used stuff through a venue that gives you little
> support if the transaction is unsatisfactory and you bought from an
> unknown party. Presumably to save money? If you're that worried about
> being "ripped off", why didn't you buy new from a reputable vendor with
> good customer service policies?

Don't get down on us finance-limited geeks, eh?


--
Ed Light

Smiley :-/
MS Smiley :-\

Send spam to the FTC at
uce@ftc.gov
Thanks, robots.
Anonymous
a b K Overclocking
a b } Memory
March 24, 2005 5:16:37 PM

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

Peter van der Goes wrote:
> "M. Bezzel" <feesa@sbd.net> wrote in message
> news:1144dhlecd0i3de@corp.supernews.com...
>
>>I just got some memory today that I bought on ebay. The description read:
>>------------------------------------------------------------------
>>Kingston PC3700 512MB (256x2) Kit DDR KHX3700K2/512 CL3 *Like New*
>>
>>This is an auction for a like new Kingston KHX3700K2/512 PC3700 512MB
>>(256x2) HyperX Dual Channel 466 Mhz Unbuffered Non-ECC DDR SDRAM Kit. I've
>>had it for less than a year and am selling it because I recently upgraded
>>my system. HyperX memory, and most memory sold with thermal plates, is
>>made for overclocking and I bought it without knowing this, so it has been
>>more than what I need. For those who wish to know, according to the
>>reference sheet found at Kingston's website, the factory timing for this
>>set is 3-4-4-8-1 at +2.6V. This memory DOES downclock to slower speeds, as
>>I was running it on 400Mhz (PC3200) while I still used it.
>>------------------------------------------------------------------
>>Here is how Sandra identifies the ram:
>>
>>Memory Module(s)
>>Memory Module 1 : Kingston 02380C99 256MB 8x(32Mx8) DDR-SDRAM
>>PC3200U-333-650 (CL3 up to 200MHz) (CL2.5 up to 167MHz) (CL2 up to 133MHz)
>>
>>Memory Module 2 : Kingston 03380C99 256MB 8x(32Mx8) DDR-SDRAM
>>PC3200U-333-650 (CL3 up to 200MHz) (CL2.5 up to 167MHz) (CL2 up to 133MHz)
>>---------------------------------------------------------
>>Here is how CPU-Z identifies the ram:
>>
>>Memory SPD
>>
>>
>>DIMM #1
>>
>>General
>>Memory type DDR-SDRAM
>>Manufacturer (ID) Kingston (7F98000000000000)
>>Size 256 MBytes
>>Max bandwidth PC3200 (200 MHz)
>>Part number K
>>Serial number 02380C99
>>Manufacturing date Week 30/Year 03
>>
>
> <snip>
> Please correct me if I'm wrong, but you're running the memory at 200MHz,
> right?
>
> 1. The seller probably only knew what was printed on the stickers.
> 2. Sandra is only telling you the speed *you* are running the memory at.

It doesn't matter what speed I'm running the memory at, the SPD data
reads the same in both sandra and CPU-Z, CL3 up to 200MHz in sandra and
max bandwidth PC3200 (200 MHz)in CPU-Z, as shown above.
March 24, 2005 7:56:10 PM

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

In article <kXE0e.494$k57.157@fed1read07>, nobody@nobody.there says...
>
> "Peter van der Goes" <p_vandergoes@toadstool.u> wrote
>
> > why worry? You purchased used stuff through a venue that gives you little
> > support if the transaction is unsatisfactory and you bought from an
> > unknown party. Presumably to save money? If you're that worried about
> > being "ripped off", why didn't you buy new from a reputable vendor with
> > good customer service policies?
>
> Don't get down on us finance-limited geeks, eh?
>
>
>

I'm reminded of what the barker said: " You pays your money
and you takes your chances. "

You should tell your wife or girl friend to get a second job. :) 

Bill
Anonymous
a b K Overclocking
a b } Memory
March 25, 2005 1:20:49 AM

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

The stickers on the heat spreaders match his description. Do you think
> the seller switched heat spreaders and put them on a set of PC3200's or
> is this even possible without bending them? I tried to figure out how to
> remove them to see what was underneath but decided not to for fear of
> damage. Does CPU-Z (ver 1.26 dec 2004) read the SPD data correctly no
> matter what board the memory is installed on? My board is a Biostar
> M7NCG 400 (PC3200 max) but that shouldn't matter to CPU-Z or sandra, or
> does it? Did I get reamed?


Could it be possible that your MB cannot handle memory speeds above 3200?

V
Anonymous
a b K Overclocking
a b } Memory
March 25, 2005 1:41:35 AM

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

>> <snip>
>> Please correct me if I'm wrong, but you're running the memory at 200MHz,
>> right?
>>
>> 1. The seller probably only knew what was printed on the stickers.
>> 2. Sandra is only telling you the speed *you* are running the memory at.
>
> It doesn't matter what speed I'm running the memory at, the SPD data reads
> the same in both sandra and CPU-Z, CL3 up to 200MHz in sandra and max
> bandwidth PC3200 (200 MHz)in CPU-Z, as shown above.

It's most likely because there is no official standard for >200mhz support,
so Sandra is just giving it a "best guess". Try to overclock it and see how
it behaves.

Hellraiser.............>
Anonymous
a b K Overclocking
a b } Memory
March 25, 2005 10:19:17 AM

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

"M. Bezzel" <feesa@sbd.net> wrote in message
news:114680v7qdshl70@corp.supernews.com...
>
> It doesn't matter what speed I'm running the memory at, the SPD data reads
> the same in both sandra and CPU-Z, CL3 up to 200MHz in sandra and max
> bandwidth PC3200 (200 MHz)in CPU-Z, as shown above.

So, tell us what speeds you've tried running the memory at above 200MHz and
what the results were.
You've not stated whether or not the memory has failed during testing.
By the way, keep you eye on the calendar while you're here, as eBay only
allows a limited time period for complaints against sellers, for whatever
reason.
Anonymous
a b K Overclocking
a b } Memory
March 25, 2005 1:17:28 PM

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

M. Bezzel wrote:
> I just got some memory today that I bought on ebay. The description
> read:
> ------------------------------------------------------------------
> Kingston PC3700 512MB (256x2) Kit DDR KHX3700K2/512 CL3 *Like New*
[...]
> For those who wish to know,
> according to the reference sheet found at Kingston's website, the
> factory timing for this set is 3-4-4-8-1 at +2.6V.
[...]
> ---------------------------------------------------------
> Here is how CPU-Z identifies the ram:
>
> Memory SPD
>
>
> DIMM #1
>
> General
> Memory type DDR-SDRAM
> Manufacturer (ID) Kingston (7F98000000000000)
> Size 256 MBytes
> Max bandwidth PC3200 (200 MHz)
> Part number K
> Serial number 02380C99
> Manufacturing date Week 30/Year 03
>
> Attributes
> Number of banks 1
> Data width 64 bits
> Correction None
> Registered no
> Buffered no
>
> Timings table
> Frequency (MHz) 133 166 200
> CAS# 2.0 2.5 3.0
> RAS# to CAS# delay 2 3 3
> RAS# Precharge 2 3 3
> TRAS# 6 7 8
[...]

First, you need to understand exactly what the SPD data is. Grab
http://www.jedec.org/download/search/4_01_02_00R9.PDF
and
http://www.jedec.org/download/search/4_01_02_04R13.PDF

to get the full details. This is the raw data out of my generic PC3200
module, courtesy of the Sandra SPD dumping program:
000: 80 08 07 0D 0A 02 40 00 04 50 65 00 82 08 00 01
016: 0E 04 1C 01 02 20 C0 60 70 75 75 48 28 48 28 40
032: 60 60 40 40 00 00 00 00 00 3C 46 28 28 50 00 00
048: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 79
064: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
096: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
112: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

SPD stores the "maximum speed" as the cycle time, in ns. It's stored as
packed BCD in byte 9, so (hex) "50" in this case (= 5.0 ns = 200MHz). PC3700
should operate at 233MHz, so should have a minimum cycle time of 4.3ns (so
byte 9 should be 43 in hex). Next, byte 18 specifies which CAS latencies are
usable by this module. It is a bitmask with bit 0 = CAS1, bit 1 = CAS 1.5,
etc etc. In my case, it's equal to 1C = 00011100, saying CAS 2 to CAS 3 is
usable. The highest CAS setting is associated with the minimum cycle time,
so my module does CAS3 at 200MHz.

Next, timings for reduced CAS latencies are stored in bytes 23 to 26. Bytes
23 and 24 contain data for the highest CAS - 0.5 (CAS 2.5 in my case), and
bytes 25 and 26 contain daya for the highest CAS - 1.0 (CAS 2.0 in my case).
The data stored is the minimum cycle time as before (bytes 23, 25 so 6.0ns
and 7.5ns for CAS 2.5 and CAS 2.0 in my case). Don't worry about bytes 24
and 26, they're only of low-level interest :) 

48 28 48 28

The final items of interest are Trcd (byte 29), Trp (byte 27), and Tras(byte
30). The first two are stored in the same format: uppermost 6 bits specify
the time in ns, and the lowermost 2 bits give half- and quarter-ns parts.
For Tras the whole byte is used for the time in ns. So for this module, Trcd
has hex value 48, which corresponds to 010010.00 = 18ns. So, for a 5ns cycle
time, it requires 4 cycles so Trcd = 4. Similarly, Trp = 18ns = 4 cycles and
Tras = 40ns = 8 cycles.

Similar calculations give Trcd = 3, Trp = 3, Tras = 7 at 6.0ns cycle time,
and Trcd = 3, Trp = 3, Tras = 6 at 7.5ns cycle time.

Now, moving onto your modules in particular :) 

It would help if you could provide the raw SPD data dump. Ideally, you want
to run with "By SPD" in the BIOS and only using the memory that you just
bought. However, you can infer some information with what you already have.

By a bit of thought, you can infer that Trcd is between 12.0ns and 15.0ns,
Trp is between 12.0ns and 15.0ns, and Tras is between 37.5ns and 40ns. At
233MHz this gives Trcd of either 3 or 4, Trp of either 3 or 4, and Tras of
either 9 or 10. Apart from the Tras these match up with what is given by the
seller, and faster than what you'd expect from generic CAS3 PC3200 (using my
generic PC3200 module as a reference).

My guess is that Kingston specified the minimum cycle time at 5ns for
compatibility or standards reason; JEDEC hasn't got a standard for anything
faster than PC3200. In fact, if you look at the KHX3700K2/512 datasheet, it
explicitly says "Clock Cycle Time (tCK) 5ns (min.)" (ie: 200MHz maximum
clock). So, I would say that it's quite likely you have got the real thing.
But the real test will be to crank the FSB up to 233MHz, set the timings
manually, and run memtest86.

[...]

--
Michael Brown
www.emboss.co.nz : OOS/RSI software and more :) 
Add michael@ to emboss.co.nz ---+--- My inbox is always open
Anonymous
a b K Overclocking
a b } Memory
March 25, 2005 1:17:29 PM

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

the manufacturer's tech support could help.


--
Ed Light

Smiley :-/
MS Smiley :-\

Send spam to the FTC at
uce@ftc.gov
Thanks, robots.
Anonymous
a b K Overclocking
a b } Memory
March 25, 2005 6:10:42 PM

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

Michael Brown wrote:
> M. Bezzel wrote:
>
>>I just got some memory today that I bought on ebay. The description
>>read:
>>------------------------------------------------------------------
>>Kingston PC3700 512MB (256x2) Kit DDR KHX3700K2/512 CL3 *Like New*
>
> [...]
>
>>For those who wish to know,
>>according to the reference sheet found at Kingston's website, the
>>factory timing for this set is 3-4-4-8-1 at +2.6V.
>
> [...]
>
>>---------------------------------------------------------
>>Here is how CPU-Z identifies the ram:
>>
>>Memory SPD
>>
>>
>>DIMM #1
>>
>>General
>>Memory type DDR-SDRAM
>>Manufacturer (ID) Kingston (7F98000000000000)
>>Size 256 MBytes
>>Max bandwidth PC3200 (200 MHz)
>>Part number K
>>Serial number 02380C99
>>Manufacturing date Week 30/Year 03
>>
>>Attributes
>>Number of banks 1
>>Data width 64 bits
>>Correction None
>>Registered no
>>Buffered no
>>
>>Timings table
>>Frequency (MHz) 133 166 200
>>CAS# 2.0 2.5 3.0
>>RAS# to CAS# delay 2 3 3
>>RAS# Precharge 2 3 3
>>TRAS# 6 7 8
>
> [...]
>
> First, you need to understand exactly what the SPD data is. Grab
> http://www.jedec.org/download/search/4_01_02_00R9.PDF
> and
> http://www.jedec.org/download/search/4_01_02_04R13.PDF
>
> to get the full details. This is the raw data out of my generic PC3200
> module, courtesy of the Sandra SPD dumping program:
> 000: 80 08 07 0D 0A 02 40 00 04 50 65 00 82 08 00 01
> 016: 0E 04 1C 01 02 20 C0 60 70 75 75 48 28 48 28 40
> 032: 60 60 40 40 00 00 00 00 00 3C 46 28 28 50 00 00
> 048: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 79
> 064: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 096: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 112: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>
> SPD stores the "maximum speed" as the cycle time, in ns. It's stored as
> packed BCD in byte 9, so (hex) "50" in this case (= 5.0 ns = 200MHz). PC3700
> should operate at 233MHz, so should have a minimum cycle time of 4.3ns (so
> byte 9 should be 43 in hex). Next, byte 18 specifies which CAS latencies are
> usable by this module. It is a bitmask with bit 0 = CAS1, bit 1 = CAS 1.5,
> etc etc. In my case, it's equal to 1C = 00011100, saying CAS 2 to CAS 3 is
> usable. The highest CAS setting is associated with the minimum cycle time,
> so my module does CAS3 at 200MHz.
>
> Next, timings for reduced CAS latencies are stored in bytes 23 to 26. Bytes
> 23 and 24 contain data for the highest CAS - 0.5 (CAS 2.5 in my case), and
> bytes 25 and 26 contain daya for the highest CAS - 1.0 (CAS 2.0 in my case).
> The data stored is the minimum cycle time as before (bytes 23, 25 so 6.0ns
> and 7.5ns for CAS 2.5 and CAS 2.0 in my case). Don't worry about bytes 24
> and 26, they're only of low-level interest :) 
>
> 48 28 48 28
>
> The final items of interest are Trcd (byte 29), Trp (byte 27), and Tras(byte
> 30). The first two are stored in the same format: uppermost 6 bits specify
> the time in ns, and the lowermost 2 bits give half- and quarter-ns parts.
> For Tras the whole byte is used for the time in ns. So for this module, Trcd
> has hex value 48, which corresponds to 010010.00 = 18ns. So, for a 5ns cycle
> time, it requires 4 cycles so Trcd = 4. Similarly, Trp = 18ns = 4 cycles and
> Tras = 40ns = 8 cycles.
>
> Similar calculations give Trcd = 3, Trp = 3, Tras = 7 at 6.0ns cycle time,
> and Trcd = 3, Trp = 3, Tras = 6 at 7.5ns cycle time.
>
> Now, moving onto your modules in particular :) 
>
> It would help if you could provide the raw SPD data dump. Ideally, you want
> to run with "By SPD" in the BIOS and only using the memory that you just
> bought. However, you can infer some information with what you already have.
>
> By a bit of thought, you can infer that Trcd is between 12.0ns and 15.0ns,
> Trp is between 12.0ns and 15.0ns, and Tras is between 37.5ns and 40ns. At
> 233MHz this gives Trcd of either 3 or 4, Trp of either 3 or 4, and Tras of
> either 9 or 10. Apart from the Tras these match up with what is given by the
> seller, and faster than what you'd expect from generic CAS3 PC3200 (using my
> generic PC3200 module as a reference).
>
> My guess is that Kingston specified the minimum cycle time at 5ns for
> compatibility or standards reason; JEDEC hasn't got a standard for anything
> faster than PC3200. In fact, if you look at the KHX3700K2/512 datasheet, it
> explicitly says "Clock Cycle Time (tCK) 5ns (min.)" (ie: 200MHz maximum
> clock). So, I would say that it's quite likely you have got the real thing.
> But the real test will be to crank the FSB up to 233MHz, set the timings
> manually, and run memtest86.
>
> [...]
>
Thanks Michael for the elaborate reply!!
To quote Carl (Sling Blade): "I reckon I understand a great deal of it"
(not). I bought these for future use, my original plan was to build a
754/sempron system and oc it so I wanted at least 233 mhz ram. I haven't
had time for extensive testing on my present system (1800+ t-bred B and
biostar M7NCG 400) but it won't boot at 233fsb. If i set the ram to 133%
of 175fsb for 233mhz ram bandwidth it boots fine, but so does my old
generic pc3200. As long as you say it's quite likely I have the real
thing then I feel better now that my $73 wasn't wasted. I just freaked a
bit when CPU-Z reported them as PC3200, but before I went after the
seller I thought I would consult the experts. As far as the sandra SPD
dump I can't find it in my version of sandra
Anonymous
a b K Overclocking
a b } Memory
March 25, 2005 7:14:29 PM

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

"M. Bezzel" <feesa@sbd.net> wrote in message
news:1144dhlecd0i3de@corp.supernews.com...
>I just got some memory today that I bought on
>ebay. ------------------------------------------------------------------
> Kingston PC3700 512MB (256x2) Kit DDR KHX3700K2/512 CL3 *Like New*
> The stickers on the heat spreaders match his description. Do you think the
> seller switched heat spreaders and put them on a set of PC3200's or is
> this even possible without bending them? I tried to figure out how to
> remove them to see what was underneath but decided not to for fear of
> damage. Does CPU-Z (ver 1.26 dec 2004) read the SPD data correctly no
> matter what board the memory is installed on? My board is a Biostar M7NCG
> 400 (PC3200 max) but that shouldn't matter to CPU-Z or sandra, or does it?
> Did I get reamed?


You likely got what was advertised. I hope you never bother a seller without
cause.

I have that board and like it. Mine won't get close to 200 MHz fsb while
using the NF2 onboard GeForce MX video (ram in sync with fsb). With an
add-on AGP card I run the mobo at 195 Mhz fsb. It is unstable just above 200
Mhz, with cheap Samsung ram pair (256x2) that does 223 Mhz in a true NF2
Ultra 400 board.
Anonymous
a b K Overclocking
a b } Memory
March 25, 2005 9:59:53 PM

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

Dave H. wrote:
> "M. Bezzel" <feesa@sbd.net> wrote in message
> news:1144dhlecd0i3de@corp.supernews.com...
>
>>I just got some memory today that I bought on
>>ebay. ------------------------------------------------------------------
>>Kingston PC3700 512MB (256x2) Kit DDR KHX3700K2/512 CL3 *Like New*
>>The stickers on the heat spreaders match his description. Do you think the
>>seller switched heat spreaders and put them on a set of PC3200's or is
>>this even possible without bending them? I tried to figure out how to
>>remove them to see what was underneath but decided not to for fear of
>>damage. Does CPU-Z (ver 1.26 dec 2004) read the SPD data correctly no
>>matter what board the memory is installed on? My board is a Biostar M7NCG
>>400 (PC3200 max) but that shouldn't matter to CPU-Z or sandra, or does it?
>>Did I get reamed?
>
>
>
> You likely got what was advertised. I hope you never bother a seller without
> cause.
>
> I have that board and like it. Mine won't get close to 200 MHz fsb while
> using the NF2 onboard GeForce MX video (ram in sync with fsb). With an
> add-on AGP card I run the mobo at 195 Mhz fsb. It is unstable just above 200
> Mhz, with cheap Samsung ram pair (256x2) that does 223 Mhz in a true NF2
> Ultra 400 board.
>

I've bought over 100 items on ebay and have never left a negative
feedback. That's why I asked the experts here first.
This board is IMO the best overclocking board that has on-board-video. I
really like it. This is my second one. My first was a ver.1 and wasn't
so good. Very picky on ram and not very oc-able. This version 7.2 rocks.
The highest fsb (prime95 stable) I can get is 219 X 9.5 for 2080MHz. I
am running a 1800+ t-bred B. I think my vcore regulator is bad because
if I set it higher than 1.775v it jumps to 1.95v and sticks there even
after I set it back. I have to unplug from the wall to restore it, so I
just leave it at 1.775v. The highest stable FSB I could get with the
onboard video is 175 when i had the memory set to 100% fsb. If I set it
to 83% fsb I could go higher, but never over 200. Seems like 2.1 GHz is
max for this CPU at this voltage, and at 1.95v it runs too hot for my
cheep speeze cooler. I bought this HyperX PC3700 memory for a future
system that I am planning on building, but in this system it is no
different than my cheap generic PC3200.
Anonymous
a b K Overclocking
a b } Memory
March 26, 2005 2:26:13 AM

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

> Thanks Michael for the elaborate reply!!
> To quote Carl (Sling Blade): "I reckon I understand a great deal of it"
> (not). I bought these for future use, my original plan was to build a
> 754/sempron system and oc it so I wanted at least 233 mhz ram. I haven't
> had time for extensive testing on my present system (1800+ t-bred B and
> biostar M7NCG 400) but it won't boot at 233fsb. If i set the ram to 133%
> of 175fsb for 233mhz ram bandwidth it boots fine, but so does my old
> generic pc3200. As long as you say it's quite likely I have the real thing
> then I feel better now that my $73 wasn't wasted. I just freaked a bit
> when CPU-Z reported them as PC3200, but before I went after the seller I
> thought I would consult the experts. As far as the sandra SPD dump I can't
> find it in my version of sandra

You'll most likely need to up the RAM voltage to run at 233, take it from
2.5v to 2.7v and see what happens - you can run up to 3.3v but the memory
will get hot fast, and will most likely fail :( 

Hellraiser.........>
Anonymous
a b K Overclocking
a b } Memory
March 26, 2005 2:00:03 PM

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

Hellraiser wrote:
>> As far as the sandra SPD dump I can't find it in my
>> version of sandra

Yeah, it doesn't appear to come with current versions of Sandra; I'm not
sure it even ever came with Sandra :)  It was just sitting in my Sandra 2002
directory, so it may have been an addon or something (though it does come
from SiSoft).

> You'll most likely need to up the RAM voltage to run at 233, take it
> from 2.5v to 2.7v and see what happens

The memory is spec'd to require 2.6V to do 233MHz, so it should only need
2.6V to get there.

[...]

--
Michael Brown
www.emboss.co.nz : OOS/RSI software and more :) 
Add michael@ to emboss.co.nz ---+--- My inbox is always open
Anonymous
a b K Overclocking
a b } Memory
March 26, 2005 2:00:04 PM

Archived from groups: alt.comp.hardware.overclocking.amd (More info?)

"Michael Brown" <see@signature.below> wrote in message
news:4244a60c$1@clarion.carno.net.au...
> Hellraiser wrote:
>>> As far as the sandra SPD dump I can't find it in my
>>> version of sandra
>
> Yeah, it doesn't appear to come with current versions of Sandra; I'm not
> sure it even ever came with Sandra :)  It was just sitting in my Sandra
> 2002 directory, so it may have been an addon or something (though it does
> come from SiSoft).
>
>> You'll most likely need to up the RAM voltage to run at 233, take it
>> from 2.5v to 2.7v and see what happens
>
> The memory is spec'd to require 2.6V to do 233MHz, so it should only need
> 2.6V to get there.

Perhaps, but it depends on how accurate your motherboard is at
setting/reading voltages :) 

Hellraiser.........>
!