HELP! NF7-S cannot overclock Athlon 2500+ to 3200+
First, thanks for clicking on this post. Your time and effort is greatly appreciated!
Components: (Mobo+RAM+Proc from newegg received 1/5/2004):
Abit NF7-S
2 x 256MB, PC3200 (Buffalo Tech using Winbond CH-5 chips)
AMD Athlon 2500+ (retail box) with the following codes:
AXDA2500KV4D KO22244l31038
PQZEA0332MPMW
Alpha PAL 8045 Cooled by a 80mm fan
Visiontek Geforce3 Ti 200 (using 41.09 WHQL drivers)
WD 160 GB Special Edition JBRTL
16x DVD Lite-ON IDE
24x CD-RW Yamaha IDE
---powered by an Antec TruePower 430 and enclosed in a CoolerMaster ATC-201
Proceedure:
Upon installing the NF7, I updated to the latest BIOS, overclocked the 2500+ by selecting the 3200+ (three selections are available: 2500+; 3200+, and User Defined)
WinXP Pro + SP1 installed without a hitch under the selected 3200+ (using default voltage). Then, I installed the 3.13 nForce drivers. I noticed that computer would freeze 3-10secs within playing an MP3. Hmm, not good!
Started playing around with BIOS settings, specifically memory timings and voltage settings. After reading in these forums, I upped the Vcore voltage (tried different settings from 1.675->1.8) in order to gain stability. I also increased the VDimm voltage and the chipset voltage in various combinations to no avail. As for the memory timings, I tried all the various settings, from “by SPD” to “Optimal” and “Aggressive.”
At this point, I was not sure where the problem lay: memory or motherboard? So, I downloaded memtest and another memory tester from Microsoft. Memory passed both series of tests (from each program) without error. At this point, I think that the problem is related to the onboard sound (because it would freeze when playing MP3s). So, I disabled the onboard sound and installed Wolfenstein Enemy Territory. Proc is still overclocked and it freezes a couple seconds after joining a server. Went to BIOS, enabled sound and set CPU back to 2500. Game does not freeze, MP3s + DVDs all play fine. I set the memory to asynchronous mode (mem 400 + Proc 333) and all still ran stable.
I have spent many hours changing settings in an attempt to reach around 2.2 ghz (3200+) stable (without games crashing and without getting errors from Prime95). I am disappointed because a friend of mine has a $60 Shuttle nforce2 that ran his 3200+ without a problem. Any advice is welcome.
Bios settings which remained consistent:
SoftMenu III (CPU Interface Enabled)
Advanced BIOS Features Setup (Virus Warning Disabled; APIC enabled)
Advanced Chipset Features (System BIOS Cache Disabled, Video RAM Cache Disabled, CPU Throttling Disabled, ALL Spread-Spectrum Disabled)
Integrated Peripherals (SATA Disabled , FireWire Disabled, Parallel Port Disabled, Serial#2 Disabled)..REST all DEFAULT (but PCI transfer enhanced Disabled)