Which Ram for LANPARTY UT nF4 Ultra-D

cymatty · 29 Apr 2006 at 15:47

ajgoodfellow said:
You can just keep clocking the sticks but they'll need the extra voltage to stabilise at the higher clock speeds. PC4000 is only 250MHz though so you shouldn't need such high voltages

I'd personally get the TCCD Geil One though

Are they more expensive than the geil ones i posted before, budget is tight.

ajgoodfellow · 29 Apr 2006 at 15:51

Ah - yes but only by about £10-15 when sold

Here's a link to the manufacturer's website

As they've been out of production for some time now it's hard to get hold of them though unfortunately

cymatty · 29 Apr 2006 at 15:53

ajgoodfellow said:
Ah - yes but only by about £10-15 when sold

Here's a link to the manufacturer's website

As they've been out of production for some time now it's hard to get hold of them though unfortunately

So the giel ones i posted are a good bet if i cant find these others for a similar price, and run them at pc4000 with a 80mm fan over the top of them?

ajgoodfellow · 29 Apr 2006 at 15:55

Yep

They don't require a huge amount of cooling so a low rpm silent 80/120mm fan will be fine

cymatty · 29 Apr 2006 at 15:57

ajgoodfellow said:
Yep

They don't require a huge amount of cooling so a low rpm silent 80/120mm fan will be fine

Cheers if i rum at pc4000 what fsb is that? would it be able to go higher if my cpu does so i dont have to use a memory divider?

Thanks again for the help.

ps just seen this DDR 500MHz CAS 2-2-2-5. so take it it will run up to that speed.

trojan698 · 29 Apr 2006 at 16:22

Yes it'll run at that speed and probably beyond. I had mine at 255 using a 333 divider. Using a divider doesnt impact on performance either. You'll also get tighter timings on bh5 than you would on tccd which is always a good thing. I believe these kits used to cost in the region of £140 not so long ago, so £90 is a bargain imo.

ajgoodfellow · 29 Apr 2006 at 16:52

cymatty said:
Cheers if i rum at pc4000 what fsb is that? would it be able to go higher if my cpu does so i dont have to use a memory divider?

Thanks again for the help.

ps just seen this DDR 500MHz CAS 2-2-2-5. so take it it will run up to that speed.

Hi

PC4000 is DDR500 (250MHz)

Just for completeness,

PC1600: DDR200 (100MHz)
PC2100: DDR266 (133MHz)
PC2700: DDR333 (166MHz)
PC3200: DDR400 (200MHz)
PC3500: DDR433 (217MHz)
PC3700: DDR466 (233MHz)
PC4000: DDR500 (250MHz)
PC4200: DDR533 (267MHz)
PC4500: DDR566 (283MHz)
PC4800: DDR600 (300MHz)
PC5000: DDR625 (313MHz)

kitfit1 · 1 May 2006 at 00:08

You could think about running the same as in my sig if you want 2x512 or OCZ4800 plat elites(which are the same). No divider needed and it does clock even higher if your cpu needs it. At 2.5-4-3-6 1t x300htt 1:1, thats pretty fast, and it shows in all benchies.

Jimbo Mahoney · 1 May 2006 at 00:11

Minstadave said:
Its the area around the topright MOFSET that gets stupidly hot, you have to be really careful about getting good airflow over that area, especially if you're using voltages around 3.2-3.4V, as the big stepdown from 5V means lots of heat is produced.

Drive it off the 3.3v line

cymatty · 1 May 2006 at 00:19

kitfit1 said:
You could think about running the same as in my sig if you want 2x512 or OCZ4800 plat elites(which are the same). No divider needed and it does clock even higher if your cpu needs it. At 2.5-4-3-6 1t x300htt 1:1, thats pretty fast, and it shows in all benchies.

How much do they cost?

Edit £150 ouch a little expensive.

kitfit1 · 1 May 2006 at 00:26

cymatty said:
How much do they cost?

Edit £150 ouch a little expensive.

Yes i know, not cheap, but they are very very fast and they scale all the way up to 320htt 1:1. I don't know of any ram that fast at the moment.

cymatty · 1 May 2006 at 00:27

kitfit1 said:
Yes i know, not cheap, but they are very very fast and they scale all the way up to 320htt 1:1. I don't know of any ram that fast at the moment.

Will i see the benefit it my cpu only clocks ti 2.4-5ghz. :confused:

ajgoodfellow · 1 May 2006 at 00:30

The 3200+ Venice has a 10X multiplier so to run your ram 1:1 at 2.5GHz you'll only need ram that can do 250MHz (PC4000)

You can get increased bandwidth by reducing the multiplier and upping the HTT speed to get the same clock speed, for example 277*9 or 313*8. In this case, if you run the ram at 1:1, you'll see the benefit of the faster ram

It'll only be slight though, and not worth the £70 extra over the other stuff mentioned IMO

cymatty · 1 May 2006 at 00:31

ajgoodfellow said:
It'll only be slight though, and not worth the £70 extra over the other stuff mentioned IMO

Thats what i thought, the geil one stuff is out of stock and that would run 250mhz stock.

kitfit1 · 1 May 2006 at 00:37

I found the main benefit is increased bandwidth. The big bonus running 1:1 is minimal stress on the memory controler which in turn leads to a higher and more stable clock.

cymatty · 1 May 2006 at 00:39

Whats this stuff like?

Mushkin (991440) eXtreme Performance (2x512MB) 1 Gb XP4400 [email protected] Redline Kit

Seems to me like the geil one stuff, whack huge voltage through and it will fly?

kitfit1 · 1 May 2006 at 09:52

cymatty said:
Whats this stuff like?

Mushkin (991440) eXtreme Performance (2x512MB) 1 Gb XP4400 [email protected] Redline Kit

Seems to me like the geil one stuff, whack huge voltage through and it will fly?

Very good stuff, especially in the DFI's. There is one downer on it though, when your running with high vdimm it can burn out the cpu's memory controller so to get round it you have to pump more vcore through the cpu. There is a calculation that can tell you what the vcore should be for a given vdimm, if you do a search at "DFI STREET" you will find it.

cymatty · 1 May 2006 at 11:20

kitfit1 said:
Very good stuff, especially in the DFI's. There is one downer on it though, when your running with high vdimm it can burn out the cpu's memory controller so to get round it you have to pump more vcore through the cpu. There is a calculation that can tell you what the vcore should be for a given vdimm, if you do a search at "DFI STREET" you will find it.

Cheers will have a look.

Also what do you call high vdimm on the memory?

Jimbo Mahoney · 1 May 2006 at 11:53

kitfit1 said:
I found the main benefit is increased bandwidth. The big bonus running 1:1 is minimal stress on the memory controler which in turn leads to a higher and more stable clock.

I've always found using a divider like 120 - 140 (ie memory around 200 Mhz or so) gives me the best CPU clock :confused:

In addition, I have always found low latency to give better results (in games and benches, rather than synthetics like SuperPi) than high bandwidth.

Defcon5 · 1 May 2006 at 12:25

kitfit1 said:
I found the main benefit is increased bandwidth. The big bonus running 1:1 is minimal stress on the memory controler which in turn leads to a higher and more stable clock.

What tests have you been doing to get those results?

A64s are not bandwith limited so throwing extra bandwith at it isnt going to make much of a difference (apart from in things like sandra and pi)

And running 1;1 will put more stress onthe memory controller due to the higher frequency, even when 1;1 it is calculated using a divider so changing the divider wont affect it