Overclock.net banner

1 - 12 of 12 Posts

·
Registered
Joined
·
82 Posts
Discussion Starter #1
PC4000 = DDR500 = 250Mhz actual FSB
PC3700 = DDR466 = 233Mhz actual FSB
PC3500 = DDR433 = 216MHz actual FSB
PC3200 = DDR400 = 200MHz actual FSB
PC2700 = DDR333 = 166MHz actual FSB
PC2100 = DDR266 = 133MHz actual FSB
PC1600 = DDR200 = 100MHz actual FSB

Ive just seen this on this forum somewhere, well what my problem is i have pc3200 memory in my system but my board/bios is only picking it up as pc2700 = ddr333, 166mhz, as i noticed this in the bios where it said about the ram then the mhz was only at 166mhz which i knew was pc2700 but now ive seen that ^ im kinda peed that my ram aint running at the proper speed, my board is a ASRock K7VT6, if i change the DRAM Frequency to 200mhz by setting it too manual it runs at proper speed then, pc3200, ddr400, but why is it not picking this up on AUTO.?
 

·
Registered
Joined
·
82 Posts
Discussion Starter #3
Got it from the computer fair, it does say pc3200 on it and when i ran this program before it picked the memory up as pc3200 aswell.
 

·
Registered
Joined
·
82 Posts
Discussion Starter #5
I think the program ony picked the memory up as pc3200, its not running at that, in the bios it picks the memory up as 166mhz , pc2700. should i just up the dram frequency to 200mhz manually.?
 

·
Premium Member
Joined
·
9,589 Posts
To clarify:

If your cpu and motherboard run normally at FSB of 166, throwing in PC3200 will not make the ram run at FSB of 200.

You must slowly raise the FSB from the stock setting up to 200 in order to see the ram speed.

PC3200, PC2700, etc are just ratings, and they are only reverse compatible. Meaning PC3200 will work in just about anything slower than an FSB of 200, but may not work in anything over an FSB of 200. (although most PC3200 modules OC into the 215 range without issues)

Need more clarification? Ask!
 

·
Registered
Joined
·
82 Posts
Discussion Starter #7
All im saying really is why my pc3200 memory i bought runs @ pc2700, surely ive been ripped off or its my MB.
 

·
Premium Member
Joined
·
9,589 Posts
What kind of processor? AMD model what?

Your mobo supports an FSB of 200...

If your ram is currently only running at 166, that means your CPU is only running at 166.

If your CPU were running at 200, and you installed this PC2700 (with PC3200 labels) it wouldnt boot, or it would downclock everything.

What FSB were you running before the ram was installed?
 

·
Registered
Joined
·
82 Posts
Discussion Starter #10
Im getting my new mb tomorrow so think im gonna leave it and wait to see what i get on that, my cpu at the moment is running @ 220fsb, with a multi of 11x, and my ram is running @ 166MHz, pc2700 ddr333.
 

·
Registered
Joined
·
82 Posts
Discussion Starter #12
ASRock, look im getting my ABit NF7 S v2 board tomorrow , i will just put my memory in there, i think its the board causing this.
 
1 - 12 of 12 Posts
Top