21xmultiplier?

RoBoT · 9 Aug 2009 at 14:21

I have the Gigabyte GA-EX58-UD3R Intel X58 (Socket 1366) PCI-Express DDR3 Motherboard, on turbo it will hit 21xmultiplier, but i can not manualy select it?

I get the option of 12-20x multipliers?

Please help me find out how to change this so to select the 21x, do i need a bios update ? how do i do it? etc thanks

AlanJ · 9 Aug 2009 at 18:54

Dont think you can manually set it ( I think you need turbo on ).

RoBoT · 9 Aug 2009 at 19:29

Doh, i was hopeing to use it to get 4gig oc on my 920 i7, as i read some where that 20x was not as stable as 19 or 21x

BigBruiserAl · 10 Aug 2009 at 08:54

RoBoT said:
Doh, i was hopeing to use it to get 4gig oc on my 920 i7, as i read some where that 20x was not as stable as 19 or 21x

Just try it mate, too many things can vary to take that info as fact

capriboy1978 · 10 Aug 2009 at 09:33

could be wrong but thought the asus boards let you set a 21x multiplier?

STutheTerrorisT · 10 Aug 2009 at 11:22

capriboy1978 said:
could be wrong but thought the asus boards let you set a 21x multiplier?

The Asus boards do let you set a x21 multiplier... The op is on a Gigabyte board tho.. Set it to 20 and have turbo enabled as AlanJ's suggested.. See what happens

Gaidin109 · 10 Aug 2009 at 12:12

Turbo enabled on the ud5

capriboy1978 · 10 Aug 2009 at 18:16

i saw the op's spec

Not worth changing boards for but useful info for someone looking to buy.

DragonQ · 10 Aug 2009 at 18:18

If Turbo is enabled and the CPU multiplier is set to Auto, your CPU will run at 21x when it needs to. You don't need to change anything.

DavyBoy · 11 Aug 2009 at 00:36

21x multi can be used for 4GHz o/c.. just make sure that Turbo Boost Technology is enabled in Advanced CPU Options in the BIOS, and then set the Bclk to 191MHz...

JonJ678 · 11 Aug 2009 at 01:29

I would really love a detailed link on what turbo boost actually is

Currently my best guess is it puts the multi up by one when under light load, which looks worthless. The second most likely is that it just lets you pick x21, then things continue as normal, which looks rather worthless as well given the x21 could just be available by default with the same effect

DragonQ · 11 Aug 2009 at 01:34

Turbo boosts the mutliplier to 21x when under load. It'll stay at 21x unless the temps get too high, in which case it'll drop back down until the temps are within safe limits. If a single core is under load, its mutliplier will go up to 22x, again as long as the temps do not get too high.

Essentially, the default mutiplier is 21x and it drops to 12x when idle with SpeedStep enabled. "Turbo" isn't really a good name for it IMO.