Welcome to GIGABYTE Technical Support!

[Lsdmeasap]

Re: Welcome to GIGABYTE Technical Support!

Well first off you cannot run 2 different brand sticks together. Even using the same brand bought at different times can be bad. I would suggest you use one or the other, And if you buy more of either so you can have 4GB you should BE SURE they have the same timing and voltage ratings so you have the best shot at getting the same actual Chips on the ram.

As for RMA'n either, I would not until you test each stick one by one at the default speed, and rated timings and voltages. I would imagine the crucials are fine, you just cannot mix sticks. Yes, sometimes it is fine, but most often not and is always suggested against. Use this to test >>>
Memtest86+ - Advanced Memory Diagnostic Tool

And, 4GB of any brand you will need to manually set several things in the BIOS, MCH/NB voltage, ram voltage and Refresh to Act Delay. So I would also imagine if you did not set these things manually they added to your issues of mixing the sticks and only made things worse

[bigmjh]

DIMM Compatibilty

Hi - I've read that the Gigabyte GA-EP45-UD3P has compatibility issues with some DIMM's. I'm looking at purchasing this board for an Intel Q9550 and using 4 X 2GB of Mushkin - either - DDR2 1066 (PC2 8500) (5-5-5-15 / 2.0v-2.1v) or DDR2 1000 (PC2 8000) (5-5-5-12 / 2.0v-2.1v) or DDR2 800 (PC2 6400) (5-4-4-12) (1.8v). Are you aware of any compatibility issues with these? Which of these would you recommend? Or, would you recommend a different set of DIMM's?

[Lsdmeasap]

Re: Welcome to GIGABYTE Technical Support!

Either of those would be great for your board. The black and red sticks are better then the Blue.

Black models would really be the best choice, and if you live in the US Model # 996580's are on sale for cheap right now >>>
Newegg.com - mushkin 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory - Desktop Memory

Mushkin is Great in Gigabyte boards for sure so you have no worries there

[bigmjh]

Re: Welcome to GIGABYTE Technical Support!

Either of those would be great for your board. The black and red sticks are better then the Blue.

Black models would really be the best choice, and if you live in the US Model # 996580's are on sale for cheap right now >>>
Newegg.com - mushkin 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory - Desktop Memory

Mushkin is Great in Gigabyte boards for sure so you have no worries there

So, you don't feel that going with the faster (PC2 8500 or PC2 8000) would be better to maximize the potential oc on this board?

[Lsdmeasap]

Re: Welcome to GIGABYTE Technical Support!

Ahh, ya you can if you want. I just posted that because it is a Great deal. And those sticks will run the exact same speed with those timings. I own them so I can tell you then run 1000+ just fine. I think they are likely the same sticks anyway, 1066 ram is just 800 ram tested to run at looser timings is all.

Give me a second And I will post you a pic of them running 1080. And yes, they will do more then that easy, I just dont have much time to play around today for you. But yes, you could get 1066 ram if you wanted but you may have better luck with slower speed if you plan to get 8GB. But yes, the board will do 1066 with 8GB

*EDIT*
Here ya go 1100, Scores below at 1066 are higher only because of different FSB used, but as you can see they will do 1066 + with ease



Here is one I took a while back with them at 1066 1:1 for some testing me and a user were doing here. And do note that the ram was not tweaked much in this test either! >>>

[bigmjh]

Re: Welcome to GIGABYTE Technical Support!

Thanks ... looks like you saved me a few bucks! Going with your recommendation. Had been set to get the Asus P5Q PRO but then came upon some excellent reviews of the Gigabyte GA-EP45-UD3P ... that made me rethink my prior decision. Also, have heard nothing but good about Mushkin DIMM's. Thanks again.

[Lsdmeasap]

Re: Welcome to GIGABYTE Technical Support!

Thanks!

Ya, I personally have not use any of the Ultra Durable 3 Gigabyte boards yet, but I do have a GA-EP45-DS4P and Love it! Tons of BIOS options!

And yeah, you cannot go wrong with Mushkins they are Great and always my top suggestion when asked

[Melandu]

Re: Welcome to GIGABYTE Technical Support!

I just bought parts to build a computer. After i've hooked everything up and turn it on i hear no post beep, the screen doesn't come on but yet all the fans run. The Phase LED's are lit up 1 & 2 green, 3 yellowish orange, and 4 red. Any ideas my friends? here are my specs
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GIGABYTE GA-EP45-DS3L ATX Intel Motherboard


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Western Digital Caviar GP 500GB 3.5" SATA 3.0Gb/s Hard Drive


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G.SKILL 4GB(2 x 2GB) 240-Pin DDR2 800 (PC2 6400) Dual Channel Kit Memory


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EVGA GeForce 9600 GT 512-P3-N861-TR Video Card


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RAIDMAX SMILODON ATX-612WB530P Black Foldout MB Computer Case With Side Panel Window


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[Lsdmeasap]

Re: Welcome to GIGABYTE Technical Support!

Will it post with only 1 stick of ram in slot one? If so you just need to adjust some settings, which you need to anyway with 2x2Gb

Does that PSU that came with it have 26A or more on the 12V rail? If not it may not be good enough, I'd suggest a new one anyway as free ones with cases and generally only suggested to use if you have to while you wait on a quality one.

What CPU are you trying to use? Some older CPU's will not work with P45 boards

[Melandu]

Re: Welcome to GIGABYTE Technical Support!

Its a 2.66ghtz duel core.
so more info on the 12v rail, is it used for the motherborad? because mine has a 20A 12v.

[Lsdmeasap]

Re: Welcome to GIGABYTE Technical Support!

That card itself requires 26A to run, and with the rest of your system included with the card 20A on that PSU is not enough for the system to start likely.

You should buy a quality PSU with at least 35-50A on the 12V rail

[Melandu]

Re: Welcome to GIGABYTE Technical Support!

but if i were to take out the video card and keep one stick of ram, and the processor in shouldn't i get a post beep when i turn on the computer?

[Lsdmeasap]

Re: Welcome to GIGABYTE Technical Support!

Possibly, it just depends. Can you test this PSU in another system to see if it even works?

[Melandu]

Re: Welcome to GIGABYTE Technical Support!

Might i ask you to recommend a good PSU that wont cost me an arm and a leg, or is something like this good ABS Tagan ITZ Series ITZ800-V2 800W ATX12V / EPS12V SLI Certified CrossFire Ready Active PFC Power Supply?

[Lsdmeasap]

Re: Welcome to GIGABYTE Technical Support!

ABS makes very good PSU's. So do PC Power and cooling

How much are you wanting to spend?