will pc133 run stable?

FloW · Post by **FloW** » Thu Oct 21, 2004 2:08 pm

ive read in some german forums that the pc133 ram will not work stable. only pc100 will work stable, is that right?

Post by **Derek** » Thu Oct 21, 2004 2:32 pm

FloW wrote:ive read in some german forums that the pc133 ram will not work stable. only pc100 will work stable, is that right?

That is not true. Both speeds will work in the BP6 as long as it's not a high density stick of RAM.

FloW · Post by **FloW** » Thu Oct 21, 2004 2:35 pm

how do you define high density? will a pc100 high density ram work?

Post by **Derek** » Thu Oct 21, 2004 2:40 pm

FloW wrote:how do you define high density? will a pc100 high density ram work?

Nope, no high density (aka double density) RAM will work with the BP6.

See this FAQ

http://www.bp6.com/board/viewtopic.php?t=918

Dave Rave · Post by **Dave Rave** » Fri Oct 22, 2004 5:20 am

you will have to also allow for if you are running an older cpu (?) with a 100mhz fsb ( I think I'm doing myself out of an argument here already) that if you overclock it, you will require better than pc100 memory.

to make this sound better, if you have some pc66 memory, and want to overclock, you will require pc100 ram to cope with the higher clock speeds.

FloW · Post by **FloW** » Fri Oct 22, 2004 6:29 am

actually im trying to buy a bp6 with 2X533hz celeron and 256sd-ram. i hope it is a low density pc133 stick.

Dave Rave · Post by **Dave Rave** » Fri Oct 22, 2004 8:01 am

if it's 256mb pc133 and it has ram thingys on both sides, it will work.
if it has ram thingys on one side, it will only show as being 128mb
it will work fine, but not to 256mb extent

FloW · Post by **FloW** » Fri Oct 22, 2004 8:38 am

it must have rams on both sides of the stick if its a pc133?

BCN · Post by **BCN** » Fri Oct 22, 2004 10:38 am

no!...

for it to recognize a 256mb, it has to have chips on both sides of the dimm.

if it will be 256mb and chips only on one side, it will recognize only 128mb, but it will work, so, look for ram that is twosided and 256mb

FloW · Post by **FloW** » Fri Oct 22, 2004 7:19 pm

ok , thanks.

davd_bob · Post by **davd_bob** » Fri Oct 22, 2004 7:48 pm

Someone, Anyone, Help please.
I know someone posted a link to a FAQ sheet on ram. I think FloW could benifit from that sheet.

I CAN'T FIND the thread or the link.

If someone would be so kind as to post it here...

Someday I hope to be at least a little smarter then I am now.

Post by **Derek** » Fri Oct 22, 2004 8:04 pm

davd_bob wrote:Someone, Anyone, Help please.
I know someone posted a link to a FAQ sheet on ram. I think FloW could benifit from that sheet.

I CAN'T FIND the thread or the link.

If someone would be so kind as to post it here...

Someday I hope to be at least a little smarter then I am now.

Derek wrote:
FloW wrote:how do you define high density? will a pc100 high density ram work?
Nope, no high density (aka double density) RAM will work with the BP6.

See this FAQ http://www.bp6.com/board/viewtopic.php?t=918

FloW · Post by **FloW** » Sat Oct 23, 2004 6:31 am

ok , so i need a single or a double-sided ram stick , right ? i mean if bp6 recognized it as a 256mb one.

BCN · Post by **BCN** » Sat Oct 23, 2004 9:05 am

if you want 256mb in one stick you need dual sided with 8 chips on each side... just go to www.crucial.com and get you ram - they will ship you one, if you choose by your mobo model and you will be able to choose from all 1005 compatible sticks they have.

if you want 128mb or less you just grab any stick you wish and it'll do, be it 128mb single or dual sided, be it 256 or 512 stick, anyway you will get 128mb.

for example, if you get dual-sided 512mb dimm, you will get 128mb on each side, so 256mb in total, but of course you will pay for 512mb, from which 505 you won't be able to use...

I think it could not be any more clear.... :-/

davd_bob · Post by **davd_bob** » Sun Oct 24, 2004 2:18 pm

Changed my sig

hugoc · Post by **hugoc** » Sat Jan 29, 2005 2:57 pm

Just a note on RAM speeds:

PC100/133 memory is often capable of more than indicated. Look at the markings on the actual chips on the DIMM. You should see a number at the end like "-8", "-7.5" or something. This is the speed of the chip in nanoseconds. Divide 1000 by this number and you will get the FSB that it should run at.

E.g. I have a stick of PC100 with 8ns chips. These chips should run at 125MHz, so I can probably go to 124MHz FSB with them.

Another thing you can do is go into the BIOS and change the CAS from 2 to 3. This is "column address strobe" and raising it will make the memory slightly slower, but may allow it to run at a higher MHz. If you do this, be sure to benchmark at your original FSB and CAS2 and then again at your higher FSB and CAS3 to make sure you're not actually losing performance.

davd_bob · Post by **davd_bob** » Sun Jan 30, 2005 12:14 am

hugoc wrote:Just a note on RAM speeds:

PC100/133 memory is often capable of more than indicated. Look at the markings on the actual chips on the DIMM. You should see a number at the end like "-8", "-7.5" or something. This is the speed of the chip in nanoseconds. Divide 1000 by this number and you will get the FSB that it should run at.

E.g. I have a stick of PC100 with 8ns chips. These chips should run at 125MHz, so I can probably go to 124MHz FSB with them.

Another thing you can do is go into the BIOS and change the CAS from 2 to 3. This is "column address strobe" and raising it will make the memory slightly slower, but may allow it to run at a higher MHz. If you do this, be sure to benchmark at your original FSB and CAS2 and then again at your higher FSB and CAS3 to make sure you're not actually losing performance.

Excelent info

Also excelent suggestion on benching to verify if changes gained or lost preformance.

login · Post by **login** » Tue Feb 01, 2005 5:17 am

Hmmm, are you sure it has to be single density? I just downloaded the BP6 manual PDF file and it says that the board supports both single and high density DIMMs. Since when do manuals lie?

Or maybe they only work with newer revisions of the board?

2-3. Installing System Memory

This motherboard provides three 168-pin DIMM sites for memory expansion. The DIMM sockets support 1Mx64 (8MB), 2Mx64 (16MB), 4Mx64 (32MB), 8Mx64 (64MB), 16Mx64 (128MB), and 32Mx64 (256MB) or double sided DIMM modules. Minimum memory size is 8MB and maximum memory size is 768MB SDRAM. There are three Memory module sockets on the system board. (Total six banks)

In order to create a memory array, certain rules must be followed. The following set of rules allows for optimum configurations.

! The memory array is 64 or 72 bits wide. (depending on with or without parity)
! Those modules can be populated in any order.
! Supports single and double density DIMMS.

[edit] Ah, okay, never mind, I didn't notice that there are three densities and not just two.

BP6.Com

will pc133 run stable?

will pc133 run stable?

Re: will pc133 run stable?

Hmmm, are you sure it has to be single density?