Mimatched RAM

[arta]

Hello everybody,
I've bought a GEIL dual channel 1066 (2x2GB) 6-6-6-18 (2.0 v) and I want to match it with OCZ dual channel 1066 (2x1GB) 5-5-5-15 (2.1 v). Which Memory Timing and Multiplier should I choose to match them?
you know, my system restarts when I use them together!

Also, My system recognize the GEIL as a 800 Mhz 5-5-5-15! What should I do?

 

[Henry Chinaski]

Try first 800Mhz CL5,5,5,15 @2.0V
If it works, you can try 1066Mhz CL6,6,6,18 @2.0V

Anyway, you can use the "cpu-z" which says you the default timings for each speed (533,667,800,1066) and for each module.

 

[saint19]

Hi newcomer and welcome to the Tom's hardware forum.

What mobo do you have?

 

[arta]

Dear All,
M.B : GA EP45-UD3R
FSB : 333

 

[arta]

Try first 800Mhz CL5,5,5,15 @2.0V
If it works, you can try 1066Mhz CL6,6,6,18 @2.0V

Anyway, you can use the "cpu-z" which says you the default timings for each speed (533,667,800,1066) and for each module.

I've tried 800Mhz CL5,5,5,15 and 1066Mhz CL6,6,6,18 @ 1.8V, you think 2.0V would differ the result?

 

[saint19]

Ok, your mobo support 1066, so, you need set all the specifications manually in the BIOS. configure the RAM at 2.0V and the timings at the low CL.

 

[arta]

Ok, your mobo support 1066, so, you need set all the specifications manually in the BIOS. configure the RAM at 2.0V and the timings at the low CL.

GEIL didn't work at 1066, CL 5-5-5-15, 2V
so, I must use 1066, CL 6-6-6-18, 2V or 1.8V.
The RAMs didn't Work together!http://img.tomshardware.com/forum/uk/icones/smilies/fou.gif
Will be any differences if I set DRAM @2.0V instead of @1.8V?

 

[Henry Chinaski]

Yes, you have set them @2.0v (although sometimes a bit lower voltage is enough, but 1.8v is too low)

 

[Henry Chinaski]

Your Ocz modules need 2.1v (specification), so at least set 2.0v, and if it doesn´t work, try 2.05v (0.05v more than specification is not a problem for the Geil modules)

 

[arta]

Your Ocz modules need 2.1v (specification), so at least set 2.0v, and if it doesn´t work, try 2.05v (0.05v more than specification is not a problem for the Geil modules)

Thanks Henry, But didn't work!
Maybe there is a problem in GEIL module (GX24GB8500C6UDC) because it is automatically recognized as PC2 6400 (CL 5-5-5-15) in cpuz and Timing Table doesn't have 6-6-6-18 @ 533 Mhz!

 

[saint19]

Please give me the links for your GEIL RAM and OCZ RAM, like I see the problem is your GEIL RAM that don't support the OC until 1066 with the default settings of your OCZ RAM.

Also, the voltage of the OCZ RAM could be a problem, the recommended for DDR2 is 1.8V, and you have a DDR2 with 2.0V to 2.1V that could be hard to set for your mobo.

 

[arta]

Please give me the links for your GEIL RAM and OCZ RAM, like I see the problem is your GEIL RAM that don't support the OC until 1066 with the default settings of your OCZ RAM.

Also, the voltage of the OCZ RAM could be a problem, the recommended for DDR2 is 1.8V, and you have a DDR2 with 2.0V to 2.1V that could be hard to set for your mobo.

Thanks saint19,

OCZ: http://www.ocztechnology.com/products/memory/ocz_ddr2_pc2_8500_sli_ready_edition_dual_channel

GEIL: http://www.geil.com.tw/products/showSpec/id/214

 

[saint19]

Trywith 6-6-6-18 and 2.0V for both RAMs

 

[arta]

Trywith 6-6-6-18 and 2.0V for both RAMs

Thanks saint19,
But didn't work!

 

[saint19]

Well, in that case is a conpatibility problem between you GEIL and OCZ RAM.

 

[arta]

Well, in that case is a conpatibility problem between you GEIL and OCZ RAM.

 

[Henry Chinaski]

Have you set the the geil modules in the orange rows and the ocz in the yelow ones?

http://www.gigabyte.com.tw/Products/Motherboard/Products_Overview.aspx?ProductID=2921

 

[arta]

Have you set the the geil modules in the orange rows and the ocz in the yelow ones?

http://www.gigabyte.com.tw/Products/Motherboard/Products_Overview.aspx?ProductID=2921

Yes, the GEIL m. are in the 1&3 (red/orange) rows.

 

[arta]

Have you set the the geil modules in the orange rows and the ocz in the yelow ones?

http://www.gigabyte.com.tw/Products/Motherboard/Products_Overview.aspx?ProductID=2921

Yes, the GEIL m. are in the 1&3 (red/orange) rows.