Need help.

Sjdeany

Sjdeany

Sjdeany

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Joined
28 Dec 2010
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142
Location
Derby
I'm looking at buying a new PC but I will only be purchasing 3 parts and buy the rest later (Dont worry I will use the existing parts from my old PC to "fill the gaps")

I know what CPU I want : Intel I5 2500k

Struggling to decide what MB I need and what Ram I need.

I'm reading that SB motherboards support 1.5v Ram (example: Memory Interface x4 1.5v DDR3 DIMM Sockets)

However I am looking at the Ram and a lot of them say 1.55v - 1.65

Forgive me if this is a stupid question but the MB only says 1.5v would it still work?

This is the ram I am lookin at http://www.overclockers.co.uk/showproduct.php?prodid=MY-290-CS&groupid=701&catid=8&subcat=1517

I also need a motherboard which will be a very good overclocker (i'm looking for 4 or more ghz stable without touching voltages only the multiplier) and a board that will support crossfire which I aim to get in the future.

Thanks in advance.
 
You need a P67 motherboard if you're gonna overclock an i5-2500k.

Options - (Presuming you're gonna want a normal sized ATX board)

http://www.overclockers.co.uk/productlist.php?groupid=701&catid=5&subid=1906 - Anything on that list, depending on what other components you're using.

Most people go for - http://www.overclockers.co.uk/showproduct.php?prodid=MB-443-AS&groupid=701&catid=5&subcat=1906 -Asus

http://www.overclockers.co.uk/showproduct.php?prodid=MB-325-GI&groupid=701&catid=5&subcat=1906 - Gigabyte

http://www.overclockers.co.uk/showproduct.php?prodid=MB-165-MS&groupid=701&catid=5&subcat=1906 - MSI

Personally I suggest against Asus, as although the problems with the old models are sorted with the B3 revision boards, they seem to have issues, taking ages sorting out problems when they do arise.
I use the MSI board, with no issues at all, and the Gigabyte board is well spoken for aswell. They're very good overclockers, with graphical BIOS for easy use (Except for the Asus), and all support Xfire.

Memory Voltage - Intel recommend 1.50v plus/minus 5% which means upto 1.58v is the safe recommended limit. In our testing we have found 1.65v has caused no issues.
Click to expand...
From OCuk staff.

The XMS3 ram has proven itself to be very compatible with SB mobos/cpus. There are other options from G.skill, OCZ, Corsair..GeIL..and many others. SB compatible RAM needs to be Dual Channel, DDR3. (Very nice choice of RAM by the way, if you intend on buying it, grab it quick, doubt it'll be this cheap for long. ;))

DDR3 PC3-12800C9 1600MHz Dual Channel Kit <-- something that looks like this.

Edit:-
i'm looking for 4 or more ghz stable without touching voltages only the multiplier
Click to expand...
Not sure about the Gigabyte and Asus boards, but the MSI board comes with a one button OC that auto boosted my i5 up to 4.2Ghz without me even having to change any settings.
 
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Wow thanks a lot Kaeo that MSI board looks perfect, although I still dont understand about the RAM voltages, I've read you have to manually change a setting in the bios to run the ram at the correct voltage and then get the full clock speed. what can you tell me about it?
 
Sjdeany said:
Wow thanks a lot Kaeo that MSI board looks perfect, although I still dont understand about the RAM voltages, I've read you have to manually change a setting in the bios to run the ram at the correct voltage and then get the full clock speed. what can you tell me about it?
Click to expand...

very easy. enter bios during start up. go to correct subheadings and then use what will
most likely be preset values that will run ram at their fuller speed. then change voltages in the same way. the manual will tell you all you need to know. how to enter bios which values to change etc.

If you type the name of the board you want and manual into google you could read up now and ask questions of other users
 
Alright built the thing however I need help getting a few things setup.

My ram is 1600mhz xms3 8 gb but in the bios its running at 1333mhz at 1.472v on "Dram auto"

would like to get that running at the speed I paid for.

also the cpu voltage is on auto changing from 1.216 to 1.208
 
You will need to manually setup the ram speed, Fromm DRAM Auto to manual adjustment.

I would not worry about .008v ~ change in voltage!

What did you go for in the end?
 
I assume you got the MSI.

Don't worry about a slight change in the CPU voltage reading.

In the BIOS change Adjusted DRAM frequency to 1600MHz.

Change DRAM voltage from Auto to Manual and select around 1.5V.

msi-bios3.jpg
 
went for the MSI board

what voltage will i need to change the Dram to so i can get 1600mhz

seems my CPU is adaptive changing the core speed to suit the current task, I would much prefer it to stay at a solid 4ghz.

any advice?
 
Sjdeany said:
went for the MSI board

what voltage will i need to change the Dram to so i can get 1600mhz

seems my CPU is adaptive changing the core speed to suit the current task, I would much prefer it to stay at a solid 4ghz.

any advice?
Click to expand...

As above start at 1.5V for the RAM. If it's stable fine, if it isn't give it a little more.

The CPU is designed to clock down when idle to save you money on your electricity and it puts less strain on the processor.

It will clock back up as required.
 
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