Friend recently assembled a system based on Gigabyte GA-P35-DS4 (rev. 2.0), Intel E8400, Corsair TWIN2X2048-6400C4 memory, running XP Pro, and is pleased with the build. I am starting to build a similar system but would like to use 4GB of ram.

2GB RAM Memoria Gigabyte GA-EP35-DS4 (Rev 2.1) (DDR2-5300 - Non-ECC) See more like this 2gb memory ram gigabyte ga-ep35-ds4 (ddr2-5300 - Non-ECC) memory motherboard Brand New. You may only add up to 5 items for comparison at one time. Saathi tere naam ek din jeevan kar jayenge. Motherboard Socket 775 GA-P35-DS4.

Am considering the Gigabyte GA-EP35-DS4 rev. 2.1, which seems to be the successor to the GA-P35-DS4, a Xeon 3110 since E8400's are presently 'out of stock', and 4GB of Corsair ram. Reading the forum posts, it seems there is a need to use a slower bios speed setting for the ram if populating all four slots. The need for the a slower bios speed setting for the ram goes away if only two slots are populated. Am I getting this right? If yes, it seems a 4GB Kit (2 x 2GB) of TWIN2X4096-6400C4DHX ram would be a good choice.

Since the board supports 1066 ram, would there be a significant advantage to using TWIN2X4096-8500C5DF? Thanks for the help.

TWIN2x4096-8500C5DF seems like a good recommendation as the idea of the E8400 at 4GB is appealing. Ordered all parts for the build yesterday (except the memory due to it being out of stock at Newegg, ZZF, and other online vendors). Would like to assemble / test the system while waiting on the TWIN2x4096-8500C5DF to become available. Trying to keep price of 'temporary ram' down so am considering a stick of PC25300 or PC25400, instead of PC26400. Would PC25300 or PC25400 work to boot / test the system? Secondly, a thread on another newsgroup raises an issue about continuous reboots with the Gigabyte GA-EP35-DS4 and ram 'with speeds above 800' (the ram brand mentioned is NOT Corsair). Is there an issue with Corsair ram 'with speeds above 800' and the GA-EP35-DS4?

If yes, I can forgo the 8500C5DF and opt for 6400c4DHX. Yes, though several implicated the 'energy saving feature' of the GA-EP35-DS4 as a possible source of the problem (I am planning to disable the 'energy saving feature' by the way). Don't suppose a fix might be attained in a future BIOS revision? If Newegg will take back the GA-EP35-DS4, what board would be more compatible with the 8500C5DF? If I must keep the GA-EP35-DS4, would Twin2x4096 6400C4DHX the next best choice?

If yes, any chance the 6400C4DHX can be overclocked to support the E8400 at 450 MHz or is the 8500C5DF necessary to run the E8400 at 450? Yes, though several implicated the 'energy saving feature' of the GA-EP35-DS4 as a possible source of the problem (I am planning to disable the 'energy saving feature' by the way). Don't suppose a fix might be attained in a future BIOS revision? If Newegg will take back the GA-EP35-DS4, what board would be more compatible with the 8500C5DF? If I must keep the GA-EP35-DS4, would Twin2x4096 6400C4DHX the next best choice?

If yes, any chance the 6400C4DHX can be overclocked to support the E8400 at 450 MHz or is the 8500C5DF necessary to run the E8400 at 450? I would go with a P5K-E in consideration of the board you currently have. A fix might come. A loosening of the memory chipset latencies or such.

Yes, you should be able to overclock the 6400C4DHX to support 8400 at 450. You will very likely have to loosen the timings a bit though, but still, it should work. The definitive word in overclocking is 'Should'. TomGu, I'd would be careful of using 8500c5d in the ep35-ds4. I have just spent 3 days trying to get the same thing to work, but all settings lead to the now infamous boot cycle. A quick google should be enough to scare you off it.

I've tried every recommended config on the net, but there seems to be a growing opinion that all the Gigabyte boards are borked over 800MHz, or at best it's hit or miss. My 8500 sticks work in my high-end Asus at 1066 without an error on memtest, and some spare corsair 6400 800MHz work in my DS4. Exactly the same thing happened with my friend's GA-p965-dq6, and he tells me his research six months ago lead to the same conclusion.

But I did find one guy on the net who said he had 1066 sticks working in the EP35-DS4, but I also found at least 10 who said they didn't. Build complete.

Quick recap: GA-EP35-DS4, E8400 OEM, Zalman 9700, Twin2x4096-C46400DHX, Raidmax Smilodon with Corsair HX620W power supply. No o/c tweaks yet. CPU-Z reports ram settings at 5:6, 5, 5, 5, 18 though the ram is rated at 4, 4, 4, 12; the CPU-Z SPD screen shows the ram at 1.8V. Are Derek's statements in comment #337504 of the explanation for my system defaulting the memory settings to 5, 5, 5, 15? If yes, do I need to reset them to 4, 4, 4, 12 and the ram voltage to 2.1 before I start adjusting the FSB and CPU vcore (I am seeking 4GHz using 445 FSB with 9 multiplier) or should I leave the ram settings 'loose' as Derek previously mentioned? Download memtest from and extract the ISO image.