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Old 12-15-2008, 06:19 AM
kesda kesda is offline
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kesda's PC Specs
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Default Ga ep45-ds3 & 1twin2x4096-8500c5df g

I have got a few questions and hope you can help me.

I have just built a PC with a Q6600 G0 SLACR CPU, GA EP45-DS3 & TWIN2X4096-8500C5DF G Seagate 500GB HD, Palit 8800GT GPU. All drivers have been updated to the latest versions.

System works fine as is.
1. The CORSAIR memory configurator reports that the GA EP45-DS3 & 1TWIN2X4096-8500C5DF are compatible I am just wondering what the "G" after the C5DF means? and if it is also compatible also?

2. Both CPU-Z 1.49 and ET6 reports the Max Bandwidth as PC2-6400 (400MHz) - see attachment. Is this a constraint of the motherboard or do I have to do some tweaking to get it run at 8500? The voltage has been set to 2.1V as per memory spec, timings to 5-5-5-15 and the PCIe bus to 100.

3, When I go to the BIOS or from ET6->CIA2 and set the level to any level other than disable, e.g. Cruise, the PC freezes. My understanding is that Cruise is a very low overclock. I have been in touch with the Gigabyte support team and they have asked me to contact CORSAIR to confirm the compatibility.
Other tests they have asked me to try include[LIST]
- changing the SPD to 4.00C - still freezes
- disabling the E1ST, C1E - still freezes
- testing the RAM modules one at a time, swapping them around, putting them in different slots. - still freezes
- ovberclocking via the BIOS, manually and thru CIA2 -same results, still freezes or a failure to boot properly.

In the last post, Gigabyte support have asked me to flash the BIOS with the BIOS R10 of another motherboard, the GA EP45-DS3R. i guess there should not really be a problem with that as both MB are architecturally the same but thought I check out the RAM compatibilty issue/settings with you first.

I have read that the GA EP45-DS3 MB is not a very good overclocker but even at low overclocking, it freezes. Wondering if it has anything to do with RAM compatibility or settings?

I have also ran MEMTEST86 on the RAM chips and they tested out ok.

Any suggestions, feedback would be most appreciated.
Thanks in advance for your help

Attached Images
File Type: png CPU-Z Memory.png (34.0 KB, 559 views)

Last edited by kesda; 12-15-2008 at 01:24 PM. Reason: update with more info
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