Timings for Giel DDR2-800

Alien8472 · 1 Nov 2007 at 10:23

Hi,

I have 2 sticks of Giel DDR2-800 in a Gigabyte DS3 rev3.0.

I am currently running a an E6600 C2D @ 3.4Ghz (8x425) which means the mem is running overspec @ (2x425) 850 Mhz.

I am unsure about the timings of this module @ (400) 800mhz im sure i read somewhere it was meant to be 4-4-4-12, but the SPD on this sstem seems to read 5-5-5-18 @ (400) 800Mhz.

Is the SPD set by the mobo manufacturer in bios, or read by the bios from the memory module (and set by mem module manufacturer) ?

On top of this would it be feasible to run rhe system @ 4-4-4-12 at 850mhz fsb?

chrs

Talrinys · 1 Nov 2007 at 10:28

It should do 4-4-4-12 at 850mhz yeah, just run some tests, 5-5-5-18 is excessive anyway.

w3bbo · 1 Nov 2007 at 10:29

SPD settings are used by the ram manufacturer and are read by the motherboard. These are the default settings to ensure your system boots up. The 4-4-4-12 setting you have seen are its rated timings at what it can run at. 850mhz with 4-4-4-12 might work but may need an increase in vdimm. 850mhz with 5-5-5-15 is entirely feasable with stock vdimm.

Alien8472 · 1 Nov 2007 at 10:41

Ok chrs, systems running fine at 3.4Ghz but noticed the mem is at 5-6-6-20!
Will try to adjust settings in bios, think its ctrl+F1 while booting.

Cob · 1 Nov 2007 at 12:04

It's Ctrl+F1 on the main BIOS screen.

Alien8472 · 1 Nov 2007 at 14:22

Excellent, appears to be running fine at 3.4Ghz 8x multi (425x2) 850Mhz bus @ 4-4-4-12. 2.1Vdimm

And core temps are a nice steady 22C idle!

Andeh · 1 Nov 2007 at 15:39

nice, i can only get mine to run like that when i set it to 5-5-5-15

Alien8472 · 1 Nov 2007 at 16:07

Andeh said:
nice, i can only get mine to run like that when i set it to 5-5-5-15

Are u sure your Vdimm is at least 2.1v?

That is minimum for the Giel DDR2-800, but gigabyte default is only 1.8v.

I also had problems till i set PCI at 102mhz

Jimmy1983 · 1 Nov 2007 at 22:49

Cob said:
It's Ctrl+F1 on the main BIOS screen.

Sorry to hijack, Iam trying to view my timings with the same board and RAM. Ive tried press Ctrl and F1 but its not working for me?!

Cob · 1 Nov 2007 at 23:27

Press them together on the main BIOS screen and the timings will be unlocked in the overclocking menu.

Alien8472 · 2 Nov 2007 at 14:04

Hmm wasnt 100% stable at 3.4ghz, had to drop back to 3.2, increased vdimm and vcore to no effect, may have to slacken timings or increase multi and drop fsb ;/

Jimmy1983 · 2 Nov 2007 at 16:34

Cob said:
Press them together on the main BIOS screen and the timings will be unlocked in the overclocking menu.

yup press together, I take it you mean the OC menu which is called M.I.T

Jimmy1983 · 2 Nov 2007 at 16:34

Jimmy1983 said:
yup press together, I take it you mean the OC menu which is called M.I.T

but iam still can't see any timings

Sean_UK · 2 Nov 2007 at 16:43

Alien8472 said:
And core temps are a nice steady 22C idle!

That on air? :eek:

If so then gotta be one seriously cold room.

Cob · 2 Nov 2007 at 17:37

Jimmy1983 said:
but iam still can't see any timings

The whole bottom half on the screen is the timings. Change DRAM Timing Selectable (SPD) to manual.

Jimmy1983 · 2 Nov 2007 at 17:57

Cob said:
The whole bottom half on the screen is the timings. Change DRAM Timing Selectable (SPD) to manual.

I knew that!

I think my timings as they are, are ok.

Jimmy1983 · 3 Nov 2007 at 11:50

Cob,

Changed the timings to 4-4-4-12, not changed 'DRAM voltage' as I can't find the option.
Someone in the games section said change it.

Tried running TF2, crashed as norm then a blue screen something like 'blue screen more or less iqual' didnt see it quick enough as it rebooted.

Tried Crysis, then this blue screen,

then managed to get into the desktop then hung with this screeny

Andeh · 3 Nov 2007 at 12:48

Alien8472 said:
Are u sure your Vdimm is at least 2.1v?

That is minimum for the Giel DDR2-800, but gigabyte default is only 1.8v.

I also had problems till i set PCI at 102mhz

my vdimm is at 2.2

Cob · 3 Nov 2007 at 12:58

Jimmy1983 said:
Cob,

Changed the timings to 4-4-4-12, not changed 'DRAM voltage' as I can't find the option.
Someone in the games section said change it.

Tried running TF2, crashed as norm then a blue screen something like 'blue screen more or less iqual' didnt see it quick enough as it rebooted.

Tried Crysis, then this blue screen,

then managed to get into the desktop then hung with this screeny

DDR2 Overvoltage Control is the memory voltage. Set it to +0.3v for the Geils recommended setting of 2.1v.

Jimmy1983 · 3 Nov 2007 at 13:15

Cob said:
DDR2 Overvoltage Control is the memory voltage. Set it to +0.3v for the Geils recommended setting of 2.1v.

Is the DRAM voltage the same as DDR2 Overvoltage Control is the memory voltage?

Getting abit confused.

And just to check you want me to change the DDR2 Overvoltage Control Voltage?

to +0.3v, that option is written in pink in the BIOS +0.5v is red. So iam ok selecting +0.3v?

I just want to check this as the last thing I dont want to do is damage and off my hardware.