Just installed PC3500, but in my BIOS it only has 133/166 settings...

TrevGlas · Post by **TrevGlas** » Thu Oct 02, 2003 1:13 pm

Whatsup, I put some PC3500 in my CPU yesterday, underclocked to PC3200 because thats as high as my cheezy board goes. But heres my question - I went into my BIOS to make sure it was running at least 3200, but in my BIOS there is only SDRAM settings for 133/166 settings, I set it to auto, but I believe mytflyguy said that it should be at 200 mhz FSB. Am I doing something wrong? (sorry for the humongous sentence)

Thanks in Advance,

Trev

deksecurity · Post by **deksecurity** » Thu Oct 02, 2003 1:21 pm

try to set it to 133 then up fsb to 200..

Brk · Post by **Brk** » Thu Oct 02, 2003 1:55 pm

Assuming he can overclock it that high.

If your board only supports DDR266 (133 x 2) or DDR333 (166 x 2), then you'll HAVE to overclock it to get PC3200/DDR400 (200 x 2) speeds...or buy a new motherboard that has native support for it.

NeoLev · Post by **NeoLev** » Thu Oct 02, 2003 3:10 pm

This is Amro posting from Neolev's house..

give us more information --- what system board do you have? etc?

Amro

TrevGlas · Post by **TrevGlas** » Thu Oct 02, 2003 4:43 pm

Well I'm running a p4 2.4 ghz 533 FSB on a ECS p4VAXd2 mobo.
Radeon 9600 Pro, 512 MB PC3500 DDR, umm 80 gb maxtor drive.

Trev

TrevGlas · Post by **TrevGlas** » Thu Oct 02, 2003 4:45 pm

Hey Burke your right it supports up to 333mhz only. I read the mobo manual and it says it supports up to ddr 3200 / 333mhz.
But 3200 ISNT 333mhz - 333 = 2700 that doesn't make any sense.

Trev

Brk · Post by **Brk** » Thu Oct 02, 2003 4:49 pm

Originally posted by TrevGlas
Hey Burke your right it supports up to 333mhz only. I read the mobo manual and it says it supports up to ddr 3200 / 333mhz.
But 3200 ISNT 333mhz - 333 = 2700 that doesn't make any sense.

Trev

They may mean you can possibly overclock it that high, or it's a typo error on their part.

Goes like this:

DDR stands for Double Data Rate, so you multiply the acutal speed of the memory by two:

PC2100/DDR266/266 MHz = 133 MHz x 2

PC2700/DDR333/333 MHz = 166 MHz x 2

PC3200/DDR400/400 MHz = 200 MHz x 2

PC3500/DDR433/433 MHz = 216 MHz x 2

If there is no support for DDR400 on your board, you'll have to overclock the memory to the higher speeds (not guaranteed) or get a new board that supports it natively.

Mark · Post by **Mark** » Thu Oct 02, 2003 4:56 pm

set it to user defined, or something like that and choose the fsb yourself.

TrevGlas · Post by **TrevGlas** » Thu Oct 02, 2003 5:12 pm

Should the timing be set to 2 or 2.5 for PC2700?

Trev

Mark · Post by **Mark** » Thu Oct 02, 2003 5:18 pm

Originally posted by TrevGlas
Should the timing be set to 2 or 2.5 for PC2700?

Trev

depends on what the memory is rated for, what are the default timeings ?

TrevGlas · Post by **TrevGlas** » Thu Oct 02, 2003 7:15 pm

Well it says timing = 2 @ 3500 but its only running at 2700 so I was just curious

Mytflyguy · Post by **Mytflyguy** » Thu Oct 02, 2003 7:35 pm

My Bad Trev ... I didn't find out what your MB was rated at .... Sorry bro ... I was thinking of a 333 FSb and 400 DDR MB ...

TrevGlas · Post by **TrevGlas** » Thu Oct 02, 2003 7:52 pm

No problem! Everyone on this board is awesome, we all help each other out, thats what makes it great

Trev

ghost · Post by **ghost** » Fri Oct 03, 2003 4:11 am

Originally posted by TrevGlas
Well it says timing = 2 @ 3500 but its only running at 2700 so I was just curious

Leave it at 2 and OC the hell out of it. Should take it NP, IMO. If things get funky, loosen one notch, but I'd try 2 first.

Brk · Post by **Brk** » Fri Oct 03, 2003 8:46 am

Yeah...use the lower timing of 2 unless it starts acting funky. Actually, you'll notice no real-world difference between 2 and 2.5, expect maybe in a tiny bit of difference in benchmarks. But benchmarking isn't indicative of how you really use the computer, so you can't totally go by that.