All,
I am having issues driving my Athlon64/3800 past a 7% overclock. I have read about 30 recent forum threads on the subject and have tried suggestions in them all with no luck. I am looking for a second opinion as to if I have reached the limit of my CPU or of there may be something else sinister at work.
Stock processor speed is 2400MHz
Max HTT freq mainboard will post with is 292MHz. (CPU-multi @ x4, MEM-spd @ HTT/2, HT @ x3)
Max MEM freq memory will pass stress with MemTest86 is 273MHz. (CPU-multi @ x4, MEM-spd @ HTT/1, HT @ x3, vRAM @ 2.7V)
Max CPU freq processor will pass stress with Prime95 L-FFTs is 2580MHz (CPU-multi @ x12, MEM-spd @ HTT/1, HT @ x3, HTT @ 215, vCore @ 1.593v)
Max CPU freq processor will pass stress with Prime95 L-FFTs (reduced MEM-spd) is 2784MHz (CPU-multi @ x12, MEM-spd @ HTT/2, HT @ x3, HTT @ 232, vCore @ 1.593v)
What I notice...
[*]vCore at both load and idle fluctuates wildly between 1.584V to 1.536V according to CPU-Z
[*]I can drive my vCore to 1.624V in BIOS, but it does not increase stability
[*]+12V at idle is 11.63V
[*]+12V at load is 11.58V
[*]CPU temp in OS while idle is 33C
[*]CPU temp in OS while under load is 50C
[*]PCI Express reads 100MHz
[*]Legacy PCI reads 33.33MHz
What I?ve been told?
The MSI Neo4 may not have a working PCI lock. Many people have suggested that what it?s reporting back to utilities is false. I?ve tried setting my PCIe bus from 100 to 101 to force the lock, but nothing so far. Several people have suggested that a broken PCI lock shows itself when systems fail to overclock past a 230MHz HTT. However, its not been stated if that failed lock would show during a post, or during a boot into Windows.
System:
[*]Athlon64/3800+ Venice (ADA3800BPBOX/CBBLE 0513CPBW)
[*]MSI Neo4-F (nForce4)
[*]Patriot PC3200 2-3-2 modules (512MB*2)
[*]Leadtek PX6600GT-THD (Geforce 6600GT, 128MB, PCIe)
[*]Silverstone Tech SST-ST460 (460W, Active PFC)
[*]Seagate Barracuda 7200.7 (200GB, ATA100, ST3200822A)
[*]NEW: Swiftech MCW6000-64 CPU waterblock
[*]NEW: Swiftech MCP 350 pump
I am having issues driving my Athlon64/3800 past a 7% overclock. I have read about 30 recent forum threads on the subject and have tried suggestions in them all with no luck. I am looking for a second opinion as to if I have reached the limit of my CPU or of there may be something else sinister at work.
Stock processor speed is 2400MHz
Max HTT freq mainboard will post with is 292MHz. (CPU-multi @ x4, MEM-spd @ HTT/2, HT @ x3)
Max MEM freq memory will pass stress with MemTest86 is 273MHz. (CPU-multi @ x4, MEM-spd @ HTT/1, HT @ x3, vRAM @ 2.7V)
Max CPU freq processor will pass stress with Prime95 L-FFTs is 2580MHz (CPU-multi @ x12, MEM-spd @ HTT/1, HT @ x3, HTT @ 215, vCore @ 1.593v)
Max CPU freq processor will pass stress with Prime95 L-FFTs (reduced MEM-spd) is 2784MHz (CPU-multi @ x12, MEM-spd @ HTT/2, HT @ x3, HTT @ 232, vCore @ 1.593v)
What I notice...
[*]vCore at both load and idle fluctuates wildly between 1.584V to 1.536V according to CPU-Z
[*]I can drive my vCore to 1.624V in BIOS, but it does not increase stability
[*]+12V at idle is 11.63V
[*]+12V at load is 11.58V
[*]CPU temp in OS while idle is 33C
[*]CPU temp in OS while under load is 50C
[*]PCI Express reads 100MHz
[*]Legacy PCI reads 33.33MHz
What I?ve been told?
The MSI Neo4 may not have a working PCI lock. Many people have suggested that what it?s reporting back to utilities is false. I?ve tried setting my PCIe bus from 100 to 101 to force the lock, but nothing so far. Several people have suggested that a broken PCI lock shows itself when systems fail to overclock past a 230MHz HTT. However, its not been stated if that failed lock would show during a post, or during a boot into Windows.
System:
[*]Athlon64/3800+ Venice (ADA3800BPBOX/CBBLE 0513CPBW)
[*]MSI Neo4-F (nForce4)
[*]Patriot PC3200 2-3-2 modules (512MB*2)
[*]Leadtek PX6600GT-THD (Geforce 6600GT, 128MB, PCIe)
[*]Silverstone Tech SST-ST460 (460W, Active PFC)
[*]Seagate Barracuda 7200.7 (200GB, ATA100, ST3200822A)
[*]NEW: Swiftech MCW6000-64 CPU waterblock
[*]NEW: Swiftech MCP 350 pump