Memory ratio question

[slofreak]

Hi

I have:
- Intel Pentium E6300 Wolfdale 2.8GHz
- ASUS P5QPL-AM
- 2 sticks of 2GB (total 4gb) DDR2 800MHz PC2-6400 CL6

I overclocked my processor to 333 x 10.5 wich is 3.5ghz on stock voltages.

the thing is CPU-Z says my ratio is 2:3 and DRAM frequency is 500mhz so x 2 is 1000mhz right?

everything seems to be runing ok Prime95 didnt give me any errors. Is this good, bad, should i lower it or it whould be better if i whould run it at 1:1 ratio and how to accoplish that with oced processor, the mobo wont allow me to go over 350 fsb on any multiplier?

 

[jaquith]

Welcome to Tom's Forum!

IF CPU-z is showing 500MHz as 'DRAM Frequency' as shown below then correct the RAM is running above spec (OC). IMO - test the OC with Prime95 + Blend and 2~4 passes of Memtest.

Ideally yes a 1:1 is best, I would have assumed that you also would have increased the FSB. Most folks who OC the E6300 increase the FSB and then match the Memory frequency for the 1:1 {FSB 500MHz : RAM 500MHz}.

In this example the RAM is running at DDR3-1067:

 

[slofreak]

Thanks and at stock fsb 266 the Dram frequency is at 400mhz but if i rise the fsb the dram frequency also gets higher, how can i still keep it at my ram specs and at 1:1 ratio?

 

[jaquith]

DRAM Frequency -> Auto <or> 667MHz ; assuming {333 x 10.5}

 

[slofreak]

it changed when i oc. now there is only auto (wich i have already) 833, 1000 and 1333

 

[jaquith]

The E6300 has a FSB Speed of 1066 MHz (4x) so '833, 1000' will work, since the RAM is Rated 800MHz then use DRAM Frequency -> '833MHz' per selection.

 

[slofreak]

i set the 833mhz but the ratio changed to 4:5 is this better than 2:3?

 

[jaquith]

From a ratio standpoint alone 4:5 is closer to 1:1 than 2:3.