memory

[onad0301]

Looking at buying some memory sticks....256mb dimm pc133

Local shop quoted $160. (GB Michaels)

Internet...93.00 ( premium and Kingston)
with 25.00 mail in rebate on each

Any difference in the "brand name" type..or is it safe to with the others??

Thanx Onad

[Panama Red]

For PC100 and PC133, I prefer to buy what is guaranteed to work with the system from Crucial. Use there configurator to pick your memory. Here's a link if you're interested:

http://www.crucial.com/

[Redfallon]

I use crucial for most pc100/133 as Panama Red, although I've also had good luck with Kingston. I stay away from PNY, just haven't had any luck with it.

[Karthik1019]

Does anyone here know what the relationship between your RAM and FSB should be? I'm a first-timer.

[Hi Ho]

I stay away from PNY, just haven't had any luck with it.

I bought some PNY memory for my other computer. Popped it in and it has worked aver since.

[Panama Red]

Yea, adding store bought memory often times will work, but it's a 50-50 chance it will. Both Kingston and PNY have cautions on their web sites that PC133 is no longer backward compatible with PC100. With the prices being as high as they are, I prefer to not take a chance.

[Hi Ho]

Yeah well I got it for $10 with instant rebate so I decided to take the chance.

[Karthik1019]

Originally posted by Karthik1019 Does anyone here know what the relationship between your RAM and FSB should be? I'm a first-timer.

I guess I'll just take that as a no then.....

[Hi Ho]

You would get more replies if you start a new thread instead of asking in the middle of another one. Anyway, the RAM speed should match the FSB speed. For example, PC3200 matches with a 400 or 800 mhz FSB. Someone else could explain it better than me.

[onad0301]

thanx guys.....Onad

[Karthik1019]

Okay Hi Ho, I'll take that to heart. Anyway, if I were to use a PC2700 for example on an 800 MHz FSB, would it screw up the whole system or just slow it down a little when I want to run fast paced programming? Thanks.

[Hi Ho]

PC3200 would really be best. It's cheaper anyway and if not, it's very close.

[Panama Red]

PC2700 will slow down the system, not mess it up in any way. Since the price is the same as Hi Ho says, PC3200 is the obvious choice.

[Redfallon]

Originally posted by Panama Red PC2700 will slow down the system, not mess it up in any way. Since the price is the same as Hi Ho says, PC3200 is the obvious choice.

On an 800FSB P4 there is a chance the RAM could cause instability, as the motherboard will by default OC the RAM to pc3200 speeds.

[Designer]

Originally posted by Karthik1019 Does anyone here know what the relationship between your RAM and FSB should be? I'm a first-timer.

Basically the rated speed of the ram should be the same as the FSB speed.

For example if you've got an XP3000+ Barton with a 333 FSB you will need RAM thats fast enough to support it, like PC2700.

Check out Floppyman's DDR/general memory FAQ, link to thread below:

http://forum.pcmech.com/showthread.p...threadid=67892

D

[fedz]

Redfallon: RAM can be run in asynchronous mode and is in most cases with intel. Not the case for AMD builds tho, so be careful there.
This can especially be seen in those huge intel overclocks, do you really think that RAM is run in synchronous mode??
I think not! lol, that would be slightly suicidal, especially with lesser RAM modules.
fedz

[fedz]

Herrrm... I'm having doubts about the RAM on AMD builds all of a sudden...
Where's our master overclocker with his kingston and 2500+ eh??

[Redfallon]

Originally posted by fedz Redfallon: RAM can be run in asynchronous mode and is in most cases with intel. Not the case for AMD builds tho, so be careful there. This can especially be seen in those huge intel overclocks, do you really think that RAM is run in synchronous mode?? I think not! lol, that would be slightly suicidal, especially with lesser RAM modules. fedz

With pc2700 and an 800mhzFSB P4 the motherboard will overclock the RAM 99% of the time. Yes you can manually put it on a divider. The majority of pc3200 out there (with the exception of Tin's of course ) will also top out around 220 maybe 230FSB.

[Karthik1019]

Thanks guys, your replies were a big help. I think I'm ready to get all the parts shipped now.

[imbest123]

ok well lets start off with bus speeds...

Intel
Pentium 4 400Mhz front side bus = 100Mhz bus speed
Pentium 4 533Mhz front side bus = 133Mhz bus speed
Pentium 4 800Mhz front side bus = 200Mhz bus speed
Celeron 400Mhz front side bus = 100Mhz bus speed

AMD
Athlon XP 266Mhz front side bus = 133Mhz bus speed
Athlon XP 333Mhz front side bus = 166Mhz bus speed
Athlon XP 400Mhz front side bus = 200Mhz bus speed

For an Intel cpu, the bus speed is quad pumped to get the front side bus speed so 100Mhz (bus speed) x 4 = 400Mhz (front side bus speed)
For an AMD XP cpu the bus speed is doubled so 133Mhz (bus speed) x 2 = 266Mhz (front side bus speed)

Now, ram also has a bus speed but since all new cpu's use DDR ram right now well discuss that only. To run the ram with a 1:1 ratio then you have to have the ram and cpu bus speed match.

DDR Ram
DDR 200Mhz effective speed pc1600 = 100Mhz bus speed
DDR 266Mhz effective speed pc2100 = 133Mhz bus speed
DDR 333Mhz effective speed pc2700 = 166Mhz bus speed
DDR 400Mhz effective speed pc3200 = 200Mhz bus speed

You can find out the rest...