3500+ and GeIL Value

divine` · 4 Nov 2006 at 00:35

I've been gradually increasing the FSB on my 3500+ Venice over the last week or so and it's currently sitting at 2.47 GHz.

CPU-Z Screens for information purposes:

Now I'm guessing that some time soon the RAM isn't going to want to go any higher and I really don't have the finances to go about replacing it with better stuff or pumping more volts through it and cocking it up.

Am I right in thinking that I can implement some sort of 'divider' that will allow my FSB/HTT to be at one speed and the RAM at another?

I'll be getting a slightly better heatsink soon (using stock AMD at the moment) so I want to have that installed before I go past 2.5GHz in any serious manner.

Any help or tips etc. will be greatly appreciated. Thanks

SkeeterUK · 4 Nov 2006 at 03:13

First of all get newer cpuz, as it shows more about htt like if its at 1000 or more etc which is useful.

Also about ** ram. Bank Cycle Time (trc) is Ras + Tras = TRC so 6+3 = 9.

About setting ** ram fsb down below 200 you do this using dividers in the bios under (manual) memory settings i think. Run on stock speed, then try each divider to see how it effects (lowers) ** fsb for ram, then you can set it to correct divider when u up the htt for the cpu. Remember to keep ** htt level about 1000 or below. To do this lower the htt and lower the multiplier and then use a higher fsb setting to get more speed. (i think)

Im not a oc expert but i know a few things, duno if i do them right like but just saying what i tryed when i was trying oc on my 3500+ venice earlier. With geil 2gb value ram.

t31os · 4 Nov 2006 at 03:28

Just bring the memory speed down (lower divider) until the CPU caps out.

My 3200 venice does 2.4 with very little ease, so i'd expect at least 2.6 with the 3500. Ok maybe you got a bad stepping but i'd still think 2.6 is do-able with some extra vcore. Don't get me wrong, my venice does 2.5 with quite a bit of extra vcore and proberly some more, but lower volts = less heat so i prefer to leave it at 2.4

Take the memory off auto set it to 333 or 266, change your htt multi to x4, which should keep you good all the way upto 250fsb at the very least.

HTT multi x 5 x 200FSB = 1000
HTT multi x 4 x 250FSB = 1000

You should be able to hit 1100 on HTT before you get any problems.

Might also help by switching the voltage to OFF instead of AUTO if you board does that. If it craps out give it a little more vcore +0.025, and so on.....

1.6vcore is proberly the highest you should go with a Venice, so just aim for keeping it below that and keeping temps within the 40's or lower. I say that with the aim of keeping within a safe limit, extreme cooling might allow more juice but i wouldnt recommend it unless you really know what you're doing.

Freezer 64 Pro is what i'm using on my Sandy and Venice, both run at around 32 - 35C most of the time, with under load hitting high 40's at the most.

Good luck with the clocking....

p.s. What mobo and ram are you using?........

pegasus1 · 4 Nov 2006 at 09:33

Lower your multi to 10 if you can. Then put your HT to x3 and your divider to 333. Then just follow the OCing guide at the start of the thread.
Using the 10 multi should allow you to run your CPU at its max speed (best for A64) whilst making the best of your Mem bandwidth.

welshtom · 4 Nov 2006 at 09:44

why on earth would he lower his multi?

Just put your ram on the next divider down and keep clocking the FSB up.

HT on 3x

Tom

divine` · 4 Nov 2006 at 13:11

I upped the FSB to 226 this morning and a few things have started throwing errors at me so I'm going to back it off a touch and then read up properly before a)getting a better HSF so I can use more VCore and b) start messing around with dividers...

divine` · 4 Nov 2006 at 13:46

Right, here are some updated CPU-Z Screens (1.37 this time) after I dropped back to 224

The motherboard is an Abit AN8 Ultra.

Looks like I need to read up on dividers etc. a bit then

SkeeterUK · 4 Nov 2006 at 13:51

As i said alter the memory setting for TRC so it is 9 instead of 11.

Also ** HTT is 1120ish which is too much. It should be 1000 or under idealy.

t31os · 4 Nov 2006 at 16:09

Still doesnt look like you're setting the divider on the memory, you can see that from the 3rd pic.

The memory is proberly crapping out, you need to use the divider mate.

divine` · 4 Nov 2006 at 16:16

I know im not using the divider

Those were just screens from a newer version someone asked for, i've been reading up on how to use the dividers etc. before I jump in the deep end with it

pegasus1 · 5 Nov 2006 at 08:42

welshtom said:
why on earth would he lower his multi?

Tom

Never had a 2500M Tom?
Cos
My 3700SD refuses to go over 2650 and thats at the max volts my Asus can use, so.
i could run at 240 x 11 with a 333 divider (2650) = mem speed of 185ish (IIRC) mhz.
i drop the multi to 10 and
265 x 10 with a 333 divider (2650) +mem speed of 221 mhz.
I know that mem bandwidth isnt all important for A64 but this has shaved 3 seconds off my Pi 1M score and every little helps, thats why we OC after all.

CPU : AMD Athlon 64 3700+ (*1)
CPU Arch : 1 Cores - 1 Threads
CPU PSN : AMD Athlon(tm) 64 Processor 3700+
CPU EXT : MMX (+) 3DNow! (+) SSE SSE2 SSE3 x86-64
CPU Cache : L1 : 64/64 KB - L2 : 1024 KB
Core : San Diego (90 nm) / Revision : SH-E4
CPUID : F.7.1 / Extended : F.27
Freq : 2651.08 MHz (265.11 * 10)
----------------------------------
MB Brand : ASUSTeK Computer INC.
MB Model : A8N-SLI DELUXE
NB : nVidia nForce4 rev A3
SB : nVidia nForce4 MCP rev A3
----------------------------------
RAM Size : 2048 MB
RAM Freq : 220.9 MHz
RAM Type : DDR-SDRAM Dual Channel
RAM Ratio : CPU/12
RAM Timings : 2.5-3-3-7
----------------------------------
Slot 1 : 1024MB (PC3200)
Slot 1 Manufacturer : GEIL
Slot 2 : 1024MB (PC3200)
Slot 2 Manufacturer : GEIL

divine` · 5 Nov 2006 at 14:21

I can't find anywhere in my BIOS to change a divider of any sort :/

I can set every concievable RAM timing option manually etc. but I can't see anything about dividers anywhere.

(Abit AN8 Ultra)

edit- though i was able to choose to run it at DDR166, DDR200,DDR333,DDR400 and a couple of higher options...

Would setting it at DDR333 be the option i'm looking for?

Also, Is it ok to run the Hypertransport below 1000 ?

Because I can choos either a 4x or 5x multiplier...

Now at 5x 200FSB gives me 1000, yet to reach 1000 at 4x i'd need 250FSB which I don't think will happen, so if it were at say 230 x4 = 920, would that still be ok?

I dont want to lower my multiplier to get a higher FSB because a drop from 11 to 10 would mean I need a FSB of 260+ to reach the speeds i'm at now...

sunstriker · 5 Nov 2006 at 17:12

Hi

Would someone be kind enough to comment on my current overclock

2500 is quite good isnt it?
what might boost to 2600 bearing in mind Im on stock cooling

CPU-Z 1.37 report file

Processor(s)

Number of processors 1
Number of cores 1 per processor
Number of threads 1 (max 1) per processor
Name AMD Athlon 64 3500+
Code Name Venice
Specification AMD Athlon(tm) 64 Processor 3500+
Package Socket 939
Family/Model/Stepping F.F.2
Extended Family/Model F.2F
Brand ID 4
Core Stepping DH-E6
Technology 90 nm
Core Speed 2503.3 MHz
Multiplier x Bus speed 10.0 x 250.3 MHz
HT Link speed 1001.3 MHz
Stock frequency 2200 MHz
Instruction sets MMX (+), 3DNow! (+), SSE, SSE2, SSE3, x86-64
L1 Data cache 64 KBytes, 2-way set associative, 64-byte line size
L1 Instruction cache 64 KBytes, 2-way set associative, 64-byte line size
L2 cache 512 KBytes, 16-way set associative, 64-byte line size

Chipset & Memory

Northbridge nVidia nForce4 rev. A3
Southbridge nVidia nForce4 MCP rev. A3
Graphic Interface PCI-Express
PCI-E Link Width x16
PCI-E Max Link Width x16
Memory Type DDR
Memory Size 1024 MBytes
Memory Frequency 166.9 MHz (CPU/15)
CAS# Latency (tCL) 2.0 clocks
RAS# to CAS# (tRDC) 3 clocks
RAS# Precharge (tRP) 3 clocks
Cycle Time (tRAS) 5 clocks
Bank Cycle Time (tRC) 22 clocks
DRAM Idle Timer 16 clocks
Command Rate 2T

System

System Manufacturer System manufacturer
System Name System Product Name
System S/N System Serial Number
Mainboard Vendor ASUSTeK Computer INC.
Mainboard Model A8N-SLI
BIOS Vendor Phoenix Technologies, LTD
BIOS Version ASUS A8N-SLI ACPI BIOS Revision 1011
BIOS Date 07/26/2005

Memory SPD

Module 1 DDR, PC3200 (200 MHz), 512 MBytes, GEIL
Module 2 DDR, PC3200 (200 MHz), 512 MBytes, GEIL

Software

Windows Version Microsoft Windows XP Home Edition Service Pack 2 (Build 2600)
DirectX Version 9.0c

ta

SkeeterUK · 5 Nov 2006 at 17:26

Now at 5x 200FSB gives me 1000, yet to reach 1000 at 4x i'd need 250FSB which I don't think will happen, so if it were at say 230 x4 = 920, would that still be ok?

Yes this is fine and is what most do i think.

t31os · 5 Nov 2006 at 17:44

sunstriker said:
Hi

Would someone be kind enough to comment on my current overclock

2500 is quite good isnt it?
what might boost to 2600 bearing in mind Im on stock cooling

*snip*

ta

Might be better to start your own thread instead of 2 people asking questions in 1 thread.

divine_madness said:
(Abit AN8 Ultra)

edit- though i was able to choose to run it at DDR166, DDR200,DDR333,DDR400 and a couple of higher options...

Would setting it at DDR333 be the option i'm looking for?

This is the divider we're talking about, basicly you need to bring this down.

Stock is DDR400, but by upping the FSB you increase this number, so basicly what you need to do, is like you said is drop this down to DDR333 or DDR266 as the overclock increases.

HTT set to x4 should see you good upto 250fsb ...... 250 x 4 = 1000 (though upto about 1100 should be fine, perhaps 1050 to be safe), FSB x HTT multi.

sunstriker · 5 Nov 2006 at 19:48

I used the thread because it is about the same piece of kit?
Sun

pegasus1 · 6 Nov 2006 at 10:06

divine_madness said:
I can't find anywhere in my BIOS to change a divider of any sort :/

I can set every concievable RAM timing option manually etc. but I can't see anything about dividers anywhere.

(Abit AN8 Ultra)

edit- though i was able to choose to run it at DDR166, DDR200,DDR333,DDR400 and a couple of higher options...

Would setting it at DDR333 be the option i'm looking for?

Also, Is it ok to run the Hypertransport below 1000 ?
...

333 is the correct divider.
running your HT at less than 1000 makes no difference, even as low as 600 has no performance hit.

divine` · 7 Nov 2006 at 16:56

Currently sat at 2.49GHz, RAM at 178MHz and HT at 906MHz.

Going to see about grabbing myself an Arctic Cooling Freezer 64 Pro and then push it past 2.5GHz

Cheers for the help guys.

pegasus1 · 7 Nov 2006 at 17:08

divine_madness said:
Currently sat at 2.49GHz, RAM at 178MHz and HT at 906MHz.

Going to see about grabbing myself an Arctic Cooling Freezer 64 Pro and then push it past 2.5GHz

Cheers for the help guys.

What speed will your Ram run at?

divine` · 7 Nov 2006 at 17:15

It's GeIL Value DDR400, so 200MHz rated, it was at 224 and I think it may have been the RAM that was giving up when I tried 226MHz with no dividers.

So it'll do 224 I reckon.