Setting up the BIOS to get max performance and OC the CPU alittle.
Posted on 2004-09-16
Starting a new thread for this question because I thought I'd exhausted the old one. Unfortunately I'm low on points so I'll increase the points value when I get some more as I plan on answering a few questions myself elsewhere.
Anyways, this is my setup
Abit NF7 Motherboard
Galaxy GeForce 6800 GT
2x256MB Geil DDR400 CL2.5 in Dimm3 + Dimm2 [ Running in Dual Channel ]
Maxtor 80GB HardDrive
Also have another single stick of Geil 512 coming tomorrow which I'll put in Dimm1,the supplier told me it will still run in Dual Channel mode.
I let the BIOS set everything up for me by selecting "Load Optimal Defaults" and everything is working fine, but the CPU is running at 333Mhz and the RAM also, I want to up the FSB as much as possible to increase the CPU speed and therefore increase the RAM speed at the same time.
I'll also mention that the CPU fan I have is a ThermalTake TR2 M4 CPU Cooler, incase anyone knows how effective that is at cooling an OC'd CPU.
The CPU is an Athlon Barton Core, and the Geil Ram description is :
"CAS 2.5 8-4-4 @ DDR400 PC3200, 2.55V-2.95V" incase that makes a difference, I've no idea what the 8-4-4 is about.
ok, I'll list the BIOS settings I think are relevent here, what they are currently set at , and the available options :
Phoenix Award BIOS
CPU Name Is : AMD Athlon XP
CPU Internet Frequency : 2083Mhz (166x12.5)
CPU Operating Speed : 2800+
x - Enternal Clock : 166Mhz
x - Multiplier Factor : 12.5
AGP Frequency : 66Mhz
CPU FSB / DRAM Ratio : Auto [Options are : 5/4, 5/5, 5/6, 6/3, 6/4, 6/5, 6/6]
CPU Interface : Disabled
Power Supply Controller : System Default
x - CPU Core Voltage : 1.65V
x - DDR SDRAM Voltage : 2.6V
x - Chipset Voltage : 1.6V
x - AGP Voltage : 1.5V
Advanced Chipset Features
Memory Timings : Optimal [Options are : Aggressive/Turbo/By SPD/Expert]
(Below Grayed Out unless set as Expert)
x - Row Active Delay : 7
x - RAS to CAS Delay : 3
x - Row-precharge Delay : 3
x - CAS Latency Time : 2.0
System BIOS cacheable : Enabled
Video Ram cacheable : Enabled
AGP Aperature : 128MB
FSB Spread Spectrum : 0.50%
AGP Spread Spectrum : 0.50%
CPU Thermal Throttling : 50.0%
Enable PCI Performance : Disabled
CPU Disconnect : Enabled
AGP Data Transfer Rate : x8 [Options are x4, x8, Auto]
Fast Write : Disabled
And thats about it !
So apart from what I should set to get my system to max efficiency, a few general questions I have are :
-Whats better to OC the CPU, increasing the multiplier or the external clock ?, and is the External Clock the FSB ?
-What should the AGP frequency be at ?
-I think the RAM is running at 333Mhz at the minute because it says "333Mhz DDR RAM Dual Channel" on boot up, so I also presume the "Auto" selection of the FSB/DRAM ratio has it set to sync'd, so whats the difference between 5/5 and 6/6 ?
-To OC the CPU, do I really need to touch the voltage?, other than the FSB?
-Will changing the RAM timings have any Gaming noticeable effect compared to OCin' the CPU (and therefore faster RAM) ?
-Should I set the AGP aperature to 64 or 128, since the card is a 256MB card ?
-I read that disabling "CPU disconnect" increases speed, but didn't want to do it as I have no idea what i means...
Any help on anything here is much appreciated. As I said, the question is worth more than the points I've given it so I'll get some more points and add them on before I close the question.