The official Gskill 4000 HZ overclocking thread

Big.Wayne · 3 Feb 2006 at 02:15

JustinB said:
Hi, just got my HZ sticks in, TBH i am lost. To be running 1:1 these should be set at DDR500 on my Asus A8N sli premium or 266? (DDR500 + 200 HTT)

Hi,

to be running at 1:1 sync your GSkill HZ PC4000 sticks should be set to:

x Memclock index value (MHz) 400MHz

(combined with a HTT of 250 of course).

That is what ASUS calls sync 1:1

mancubas · 3 Feb 2006 at 10:17

Check out your favourite online shop and the "this week only", you'll be V surprised, I was

Hesky82 · 3 Feb 2006 at 10:35

they had it at that price a few weeks ago when I got mine. In hines’ sight I still wish I had paid extra for the muskins.

mancubas · 3 Feb 2006 at 14:12

Mushkin 2GB DDR XP4000 Extreme Performance Dual Channel Kit (2x1GB) CAS3 <This stuff.. cost about 50quid more and the spec's are similiar.. how is it better?

ManC

Hesky82 · 3 Feb 2006 at 14:27

yup package wise there identical, uccc samsung chips and brainpower 808 pcb's but the mushkins simply have better clocking chips. these hz are a real mixed bag, the 1st batch was capable of 280-290mhz, quite a lot now struggle to do SPD! mushkins are simply reliable overclockers, but if you dont plan to overclock and just want to upgrade to pc4000 2gb then there a steal! grab them and cross your fingers you wont have to rma them.

mancubas · 3 Feb 2006 at 15:19

Well I shall be overclocking mildly with the below spec: -

Opty 146 CAB2E 0546FPMW
DFI Lanparty Ultra-D

I want to at least acheive 2.5Ghz with this chip... if this memory can do it's SPD of 250Mhz that should be OK... would you say that the latest G.Skill HZ are not doing SPD and am I pushing my luck on acheiving the above speed?

Thx...
ManC

Big.Wayne · 3 Feb 2006 at 15:35

mancubas said:
this memory can do it's SPD of 250Mhz that should be OK... would you say that the latest G.Skill HZ are not doing SPD and am I pushing my luck on acheiving the above speed?

Hi,

I would hope that some memory sold as PC4000/250MHz/DDR500 could run at its rated speed? and unless you got a real bad CPU then there should be no problem hitting 2.5GHz 1:1 sync.

Amps · 3 Feb 2006 at 17:13

I am thinking of upgrading to some Gskill 4000`s is there really much diffrence running at say 250mhz than there is at running at 210mhz (budget ram speed).

In games anyway?

Big.Wayne · 3 Feb 2006 at 17:40

Hi,

It appears the *main* boost you will get to memory speed is from the CPU MHz, and the actual speed and timings of the memory are just minor. (faster CPU, faster memory, weird but true!).

If this is true than it seems a good idea to run *value* ram @ roughly DDR400 using a memory divider to keep it in spec.

Having memory that can run higher than DDR400 *could* be an advantage if your able to hit a very high HTT and need the memory to run on a divider @ say DDR450. . .

warnea1984 · 3 Feb 2006 at 20:21

I think i have found my next upgrade, anyone got the same motherboard as me and this ram, just wondering, running the 704-2 bios (I think thats right, got it off the DFI Forums made by a guy called BigToe or something)

Any how should complement my setup, had problems overclocking my cpu with the geil value.

easyrider · 3 Feb 2006 at 20:28

mancubas said:
I want to at least acheive 2.5Ghz with this chip... if this memory can do it's SPD of 250Mhz that should be OK... would you say that the latest G.Skill HZ are not doing SPD and am I pushing my luck on acheiving the above speed?

Thx...
ManC

most arre doing 260-280 mhz

easyrider · 3 Feb 2006 at 20:37

warnea1984 said:
I think i have found my next upgrade, anyone got the same motherboard as me and this ram, just wondering, running the 704-2 bios (I think thats right, got it off the DFI Forums made by a guy called BigToe or something)

Any how should complement my setup, had problems overclocking my cpu with the geil value.

I have got the DFI expert and it works fine.Currently running at 260 mhz 1:1 with my opty [email protected].

If you want to run 1:1 then get the HZ if not just run your geil on a divider

Amps · 3 Feb 2006 at 20:39

Is there any speed gains not using a divider on 939 ?

Hesky82 · 3 Feb 2006 at 22:25

Big.Wayne said:
Hi,

It appears the *main* boost you will get to memory speed is from the CPU MHz, and the actual speed and timings of the memory are just minor. (faster CPU, faster memory, weird but true!).

If this is true than it seems a good idea to run *value* ram @ roughly DDR400 using a memory divider to keep it in spec.

Having memory that can run higher than DDR400 *could* be an advantage if your able to hit a very high HTT and need the memory to run on a divider @ say DDR450. . .

agree 100%!!!

Hesky82 · 3 Feb 2006 at 22:26

Amps said:
Is there any speed gains not using a divider on 939 ?

in the real world nope

lemonkettaz · 4 Feb 2006 at 00:51

what timing would be best to get out of this memory...

i currently have it set at a lame

3-4-4-8

am sure there is better.

ps 3-4-4-8 @ 250mhz

easyrider · 4 Feb 2006 at 01:08

see Here

If you were after tighter timings over mhz overclock then you maybe should have got the ZX instead.

The higher mhz speed still is better than tighter timings with this ram though looking at the review.

Hesky82 · 4 Feb 2006 at 01:20

yup, you just cant get decent low latencies out of these sticks no matter how low frequency you go. maybe able to get it to 3-4-3-7 at 250.

easyrider · 4 Feb 2006 at 01:24

Just wap them up has fast as they go at 1:1 and be done with it.

warnea1984 · 4 Feb 2006 at 01:43

I have used dividers on the geil the only problem is the higher dividers don't work so I can use the 166 divider but not the 133 divider, I know the cpu is not the limit because the ram does work on a 100 divider and my old 3000+ Winchester cpu clocked to 2.4Ghz.

Not tried overclocking yet with the 170 but it is one of the reasons I brought it, so will get around to it soon no doubt