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--Before RMA (if you have information/data that need to backup-- About HDD[Western Digital 160GB IDE-100], I had this problem before. Before I formatted it, I had used "Data Lifeguard Diagnostic for DOS (CD)" to repair/check my HDD After formatted, I used "EasyRecovery" to recover my data. It could recover around 95% of all my data.

DFI is not officially supporting Opteron so please post on this below. It might be getting answer faster http://www.dfi-street.com/forum/showthread...6986#post406986

DFI LANPARTY nF4 Expert SLI-DR - Stock BIOS 12/07/2005 AMD Opteron 175 OSA175DAA6CD CCBWE 0546XPMW 1367286K50181 (Retail-with Fan) 2x1GB OCZ5002048ELGEGXT-K DDR500 EL Gold Ext. XTC XFX PV-T43G-UDF3 GF 6600GT 256MB GDDR3 Dual-DVI TV PCI-E, Forceware version :: 77.77 Maxtor 160GB SATA-I hdd (6L200M0) Hitachi 160GB SATA-I hdd (HDS722516VLSA80) NEC DVD-RW ND-3540A OCZ PowerStream OCZ520ADJ ATX 520W Power Supply - Retail Thermalright SI-120 + PanaFan 120mm H1B with sensor Thermaltake Armor VA8000BWS ========== Genie BIOS Settings: FSB Bus Frequency - 238 LDT/FSB Frequency Ratio - x 4.0 LDT Bus Trnsfer Width - 16 16 CPU/FSB Frequency Ratio - x 11.0 PCI eXpress Frequency - 100Mhz CPU VID StartUp Value - Start Up CPU VID Control - 1.525v CPU VID Special Control - Above VID * 102.4% LDT Voltage Control - 1.40v Chip Set Voltage Control - 1.72v DRAM Voltage Control - 2.80v DRAM Configuration Settings: DRAM Frequency Set - 233=RAM/FSB: 07/06 Command Per Clock (CPC) - Enable CAS Latency Control (Tcl) - 3.0 RAS# to CAS# delay (Trcd) - 04 Bus Clocks Min RAS# active time (Tras) - 08 Bus Clocks Row precharge time (Trp) - 03 Bus Clocks Row Cycle time (Trc) - 12 Bus Clocks Row refresh cyc time (Trfc) - 16 Bus Clocks Row to Row delay (Trrd) - 02 Bus Clocks Write recovery time (Twr) - 02 Bus Clocks Write to Read delay (Twtr) - 02 Bus Clocks Read to Write delay (Trwt) - 03 Bus Clocks Refresh Period (Tref) - 3120 Cycles Write CAS Latency (Twcl) - Auto DRAM Bank Interleave - Enabled DQS Skew Control - Auto DQS Skew Value - 0 DRAM Drive Strength - Level 7 DRAM Data Drive Strength - Level 2 Max Async Latency - 8.0 Nano Seconds DRAM Response Time - Normal Read Preamble Time - 6.0 Nano Seconds IdleCycle Limit - 128 Cycles Dynamic Counter - Disable R/W Queue Bypass - 16 x Bypass Max - 04 x 32 Byte Granularity - Disable(4 Bursts) short description: 238x11 @ 2618Mhz, 1.525v + 102.4% 3-4-8-3 @ 2.8v vdimm

My new ram is 2GB (2x1GB) OCZ5002048ELGEGXT-K I run memtest (by mainboard) v1.65 @270 (DDR540) I can't pass test 5 (at 3rd test, 4th test) when I set vdimm over 2.90 However if I set 2.82v for vdimm, it pass (I ran the default test around 5 times--all passed) Can anyone explain? I am confused. Why can't I set ram over 2.8 for running faster?

http://www.dfi-street.com/forum/showthread.php?t=29656 Go to that thread, it would be helped Opty is not supported officailly by DFI

I think your stepping is the same as mine. I have this info for you I ran at 10x262 1.525v 102% vdimm 2.8 (1:1) LDT 1.4 Chip 1.72 at 2 x Prime95 (using ram 950MB). One of Primes failed at 28 hrs 14 minutes And I has tested @2700 (10x270 or 245x11), Longest Prime95 failed at 9 hrs (1.55v x 102%) I might have a poor o/c potential :sad:

Opty 175 Family f Model 3 Stepping 2 Revision Jh9-E6 OSA175DAA6CD CCBWE O546XPMW 1367286K50181 DFI Expert Bios 12/07/2005 OCZ5002048ELGEGXT-K XFX PVT42EUDP7 Geforce 6800XT 256MB GDDR3 PCI Express x16 OCZ 520adj SI-120 + PanaFan 120mm H1B with sensor HDD 160GB Hitachi

Uhmmmm I am curious too. Because I ran at 10x262 1.525v 102% vdimm 2.8 (1:1) LDT 1.4 Chip 1.72 at 2 x Prime95 (using ram 950MB). One of Primes failed at 28 hrs 14 minutes What do you think? if you are a gamer and not run computer more than 8 hours. I think you ran 24 hrs would be enough. To me, I want to run my computer 24/7, I probably make sure that it could ran Prime95 over 48 hrs for stable [ I think this would be my opinion ] My 3200+, I had tested for 48 hours before I have been using it.

My spec (update with Prime95 Stable 49hrs53mins) : DFI LANPARTY nF4 Expert SLI-DR - Stock BIOS 12/07/2005 AMD Opteron 175 OSA175DAA6CD CCBWE 0546XPMW 1367286K50181 (Retail-with Fan) 2x1GB OCZ5002048ELGEGXT-K DDR500 EL Gold Ext. XTC XFX PV-T43G-UDF3 GF 6600GT 256MB GDDR3 Dual-DVI TV PCI-E, Driver: 77.77 Maxtor 160GB SATA-I hdd (6L200M0) Hitachi 160GB SATA-I hdd (HDS722516VLSA80) NEC DVD-RW ND-3540A OCZ PowerStream OCZ520ADJ ATX 520W Power Supply - Retail Thermalright SI-120 + PanaFan 120mm H1B with sensor Thermaltake Armor VA8000BWS ========== Genie BIOS Settings: FSB Bus Frequency - 238 LDT/FSB Frequency Ratio - x 4.0 LDT Bus Trnsfer Width - 16 16 CPU/FSB Frequency Ratio - x 11.0 PCI eXpress Frequency - 100Mhz CPU VID StartUp Value - Start Up CPU VID Control - 1.525v CPU VID Special Control - Above VID * 102.4% LDT Voltage Control - 1.40v Chip Set Voltage Control - 1.72v DRAM Voltage Control - 2.80v DRAM Configuration Settings: DRAM Frequency Set - 233=RAM/FSB: 07/06 Command Per Clock (CPC) - Enable CAS Latency Control (Tcl) - 3.0 RAS# to CAS# delay (Trcd) - 04 Bus Clocks Min RAS# active time (Tras) - 08 Bus Clocks Row precharge time (Trp) - 03 Bus Clocks Row Cycle time (Trc) - 12 Bus Clocks Row refresh cyc time (Trfc) - 16 Bus Clocks Row to Row delay (Trrd) - 02 Bus Clocks Write recovery time (Twr) - 02 Bus Clocks Write to Read delay (Twtr) - 02 Bus Clocks Read to Write delay (Trwt) - 03 Bus Clocks Refresh Period (Tref) - 3120 Cycles Write CAS Latency (Twcl) - Auto DRAM Bank Interleave - Enabled DQS Skew Control - Auto DQS Skew Value - 0 DRAM Drive Strength - Level 7 DRAM Data Drive Strength - Level 2 Max Async Latency - 8.0 Nano Seconds DRAM Response Time - Normal Read Preamble Time - 6.0 Nano Seconds IdleCycle Limit - 128 Cycles Dynamic Counter - Disable R/W Queue Bypass - 16 x Bypass Max - 04 x 32 Byte Granularity - Disable(4 Bursts) ========== short description: 238x11 @ 2618Mhz, 1.525v + 102.4% 3-4-8-3 @ 2.8v vdimm However, anyone, what Bios version is Good for Expert with Opty?

For whom who think 8 hrs stable is enough My Opty 175 can't be stable after 9th hour. (10x265) in Prime95 (around 9hrs 23 mins) Now I am running 262x10 1.525v 102% for 24hrs of Prime95 (each core using 920MB for testing) If ya wanna test Prime95, I suggest you test it for 24 hrs to make sure that's stable I got an error after 9th in Prime95 :drool: So sad that my Opty 175 has poor o/c potential. :sad: I will put my sig after I found the stable rig. Opty175 + Expert + OCZ DDR500 GXT (2GB) 2.8v 1:1

For whom who think 8 hrs stable is enough My Opty 175 can't be stable after 9th hour. (10x265) in Prime95 Now I am running 262x10 1.525v 102% for 24hrs of Prime95 (each core using 920MB for testing) If ya wanna test Prime95, I suggest you test it for 24 hrs to make sure that's stable I got an error after 9th in Prime95 :drool: So sad that my Opty 175 has poor o/c potential. I will put my sig after I found the stable rig. Opty175 + Expert + OCZ DDR500 GXT (2GB) 2.8v 1:1

What Bios version should I update for? my rig is Opty 175 + Expert + OCZ 2x1GB PC4000 GTX (OCZ5002048ELGEGXT-K) My CPU is very poor O/C potential (11*248) vid 1.55 [still Testing the MAX CPU, not test MAX FSB yet]

What Bios version should I update for Opty 175 + Expert + OCZ 2x1GB PC4000 GTX (OCZ5002048ELGEGXT-K) My CPU is very poor O/C potential (11*248) vid 1.55 [still Testing the MAX CPU, not test MAX FSB yet] :< I think I may try to update Bios also, help please.

Thanks, guys I will do it with my new system in Jan (if I have enough money to buy Opty + Expert + 2x1GB)

I have a question about "RUN IN" simply question: Should CPU be "run in"? and if yes, HOW?? If a overclocker get a new CPU, should he/she burn it in a stock speed and stock voltage before overclock? how long for run in (8 hrs-48 hrs??? not ZERO HR: just clock it MAX then decrease it until stable)