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The Socket 939 Appreciation Club and Knowledgebase [Official] - Page 579

post #5781 of 28751
Um, is our contest a dual core only or is it single core and dual core?
post #5782 of 28751
Quote:
Originally Posted by blitz6804 View Post
Ah, gotcha. I have my PC hooked up via the analog ports on my X-Fi, and every time I plug the PC into a TV, Catalyst politely reminds me that its DVI-out does not carry audio when using HDMI. No duh! I did not know until now that they added that feature on the 48xx series.

The 38xx series have 5.1 out via DVI. Maybe it's because you have AGP?
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post #5783 of 28751
Or because I never connected some audio connector or something. All I know is whenever I put a DVI/HDMI adapter, it finds it necessary to remind me that it wont carry audio.
     
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post #5784 of 28751
Quote:
Originally Posted by ZealotKi11er View Post
Guys i have one question. What is that thing that i heard when i first overclocked my 3700 to keep ram ratio with CPU 1:1?
Zealotkiller, I'm not sure I understand your question. Can you elaborate more for us?

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post #5785 of 28751
Agreed with thlnk3r . What's the question that's being asked exactly?
 
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post #5786 of 28751
I think he's saying that when he first started overclocking, somebody told him to keep his RAM on a 1:1 divider (or 1:1 RAM Ratio).
He's asking what that means and why he's doing it (If I'm understanding correctly)

Basically you do that to keep your RAM speed at your FSB speed, which most of us don't actually do. Since our memory usually won't go at our FSB speed, we will give it a smaller divider so that it will run slower than our FSB, letting us get higher FSB speeds and higher CPU speeds.
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post #5787 of 28751
People might have been giving him static saying he couldn't do it; I do not know.

As to why you would want to run 1:1; bandwidth will usually take a hit if you are running async to your CPU; both Pioneer and I have tested this. In my case, CPU=RAM=250 is a bandwidth of just under 8000 MB/s. CPU=208, RAM=250 is a bandwidth of just over 6000 MB/s. (Dual channel mode for both tests obviously.) Only when you are running 1:1 will you get close to the hypothetical speed. In the case of DDR 500, that is PC 4000, so dual channel is 8000 MB/s.

If you cannot run 1:1, some ratios are better than others. I think Pio did a test on this; 166:200 was better than 183:200 for example.
     
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post #5788 of 28751
Quote:
Originally Posted by blitz6804 View Post
People might have been giving him static saying he couldn't do it; I do not know.

As to why you would want to run 1:1; bandwidth will usually take a hit if you are running async to your CPU; both Pioneer and I have tested this. In my case, CPU=RAM=250 is a bandwidth of just under 8000 MB/s. CPU=208, RAM=250 is a bandwidth of just over 6000 MB/s. (Dual channel mode for both tests obviously.) Only when you are running 1:1 will you get close to the hypothetical speed. In the case of DDR 500, that is PC 4000, so dual channel is 8000 MB/s.

If you cannot run 1:1, some ratios are better than others. I think Pio did a test on this; 166:200 was better than 183:200 for example.
Yes I tried the 166 divider with 300 HT clock, and that gave me a better bandwidth (roughly 8500ish???).
 
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post #5789 of 28751
Thread Starter 
RAM dividers have acquired a kind of maligned reputation, perhaps.

One essential fact to remember is that, no matter what HTT Clock : RAM Clock ratio you set, the RAM is ALWAYS running on a divider. Even if the HTT Clock and the RAM are running synchronously, they are running on a divider (1:1 is still a ratio, by definition).

The primary function of a RAM divider when it comes to overclocking your system is to allow your CPU frequency to scale higher than your RAM's maximum stable frequency. Since the CPU speed is defined by "HTT Clock x CPU Multiplier = CPU Freq," and given the almost universally prevalent fact that CPUs can run faster than the RAM ever could, it is therefore necessary to "disconnect" the RAM clock from the HTT (reference) Clock (and therefore, the CPU clock as well).

Before my old Patriot RAM guinea pigs went to silicon heaven not too long ago, I was testing the effects of various RAM settings (divider settings, timings, etc.) on bandwidth and performance. This is an experiment that I will return to very soon, if only to provide some relatively definitive trends in how changes in settings affect RAM (and overall system) performance.

For sure, though, the point I want to reiterate is: RAM dividers are NOT your enemies; they are your friends.
    
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Lian Li PC-V2000B (with thlnk3r mods) 
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CPUMotherboardGraphicsRAM
Phenom II X3 720 BE Gigabyte GA-MA790FXT-UD5P Sapphire Radeon HD 3870 2 x 2GB Crucial Ballistix Tracers PC3 10600 
Hard DriveCoolingOSPower
Almost 8TB of storage AMD Stock Cooler Windows Home Server CoolerMaster SilentPro M 700W 
Case
Lian Li PC-V2000B (with thlnk3r mods) 
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post #5790 of 28751
*Gets stabbed in the neck by a RAM divider.*

Joe! You -- *coughs up blood* -- lied to me!

*Dies.*
     
CPUMotherboardGraphicsRAM
Intel Core i7-3770k ASRock Z77 Extreme6 LGA 1155 EVGA GeForce GTX 780 FTW (03G-P4-3784-KR) Crucial Ballistix Sport 
Hard DriveHard DriveHard DriveHard Drive
Samsung Spinpoint F3 HD103SJ Hitachi Deskstar 5K3000 HDS5C3020ALA632 Hitachi Deskstar 7K1000 HDS721075KLA330 Hitachi X Mobile 
Optical DriveCoolingCoolingCooling
LG CH08LS10 (SATA BD-R / DVD±R / CD-RW) Prolimatech Megashadow Scythe S-Flex SFF21G x2 Scythe S-Flex SFF21F x2 
CoolingCoolingCoolingOS
Thermalright TR-FDB-1600 x4 XCLIO Amazing Fan 250mm Scythe Kama Bay SCKB-1000BK x3 Windows 7 Home Premium x64 SP1 
OSOSOSOS
Windows XP Home x64 SP3 (via Virtualbox) Fedora 15 LXDE (via Virtualbox) Slackware Linux XFCE (via Virtualbox) DOS 5.0 (via DOSbox) 
MonitorMonitorMonitorKeyboard
LG 47LH40 Acer G276HL Gbd Acer G276HL Gbd Unicomp Classic 104 Black Buckling Spring PS2 
PowerCaseMouseMouse Pad
Silverstone OP1000-E Modded Thermaltake Armor VA8003BWS Logitech G500 Massive generic black foam mat 
AudioAudioAudioAudio
Creative Sound Blaster X-Fi Titanium Fatal1ty C... Denon AVR-1910 Polk Audio Monitor 40 Polk Audio Monitor 30 
AudioAudioAudioAudio
Polk Audio CS1 Polk Audio PSW10 Jamo C400SUR Plantronics Gamecom 377 
AudioOtherOtherOther
LG HBM-235 Genovation ControlPad 683 Canon Imageclass MF4450 12" Dual White Cold Cathode Kit x3 
OtherOtherOtherOther
Microsoft Strategic Commander UPEK Eikon Digital Privacy Manager Logitech G27 Playseat Revolution (NASCAR) 
OtherOtherOtherOther
Playseat Revolution Gearshift Holder Sony DualShock 3 Microsoft Lifecam VX-1000 D-Link DBT-120 
OtherOther
APC SMT1500 HP Photosmart 3210xi All-in-One 
CPUMotherboardGraphicsRAM
Intel Core 2 Duo T7700 Merom Toshiba ISRAA 1.0 (Socket 479) ATI Mobility Radeon HD2600 modded CCC 10.6 OCZ2MV6674GK 
Hard DriveHard DriveOptical DriveCooling
Hitachi Travelstar 7K500 HD20500 Western Digital Caviar Blue (WD6400BEVT-22A0RT0) Matshita DVD-RAM UJ-850S ATA Stock heatpipe system 
CoolingOSOSOS
Thermaltake Massive23 CS Windows 7 Home Premium x64 SP1 Windows XP Home x64 SP3 (via Virtualbox) DOS 5.0 (via DOSbox) 
MonitorKeyboardPowerCase
17.0" Diagonal Widescreen WSXGA+ Internal only 19 V, 6.32 A Stock 17" Satellite shell (8.5 lbs) 
MouseMouse PadAudioAudio
Logitech G500 Small generic black foam mat HP Thin USB Powered Speakers Fiio E5 Headphone Amplifier 
AudioOtherOther
Griffin iTrip P1141 Microsoft GPS 168 Toshiba Backpack PA1366U-1NCS 
CPUMotherboardGraphicsRAM
AMD Athlon XP-M 2500+ Barton Hewlett-Packard 0024 ATI Mobility Radeon IGP-320M Crucial CT6464X265.16FG 
Hard DriveOptical DriveCoolingOS
Toshiba MK4021GAS Toshiba SD-R2512 Stock heatpipes Windows XP Home SP3 
MonitorKeyboardPowerCase
15.0" XGA TFT Internal only 18.5 V, 4.9 A Stock 15" Pavilion Shell (8 lbs) 
MouseMouse PadAudioOther
Logitech MX510 Gaming Optical Generic gel-based green Internal Altec Lansing only Targus PAU10KU 
OtherOther
D-Link DWL-G650M Generic black messenger-style bag 
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CPUMotherboardGraphicsRAM
Intel Core i7-3770k ASRock Z77 Extreme6 LGA 1155 EVGA GeForce GTX 780 FTW (03G-P4-3784-KR) Crucial Ballistix Sport 
Hard DriveHard DriveHard DriveHard Drive
Samsung Spinpoint F3 HD103SJ Hitachi Deskstar 5K3000 HDS5C3020ALA632 Hitachi Deskstar 7K1000 HDS721075KLA330 Hitachi X Mobile 
Optical DriveCoolingCoolingCooling
LG CH08LS10 (SATA BD-R / DVD±R / CD-RW) Prolimatech Megashadow Scythe S-Flex SFF21G x2 Scythe S-Flex SFF21F x2 
CoolingCoolingCoolingOS
Thermalright TR-FDB-1600 x4 XCLIO Amazing Fan 250mm Scythe Kama Bay SCKB-1000BK x3 Windows 7 Home Premium x64 SP1 
OSOSOSOS
Windows XP Home x64 SP3 (via Virtualbox) Fedora 15 LXDE (via Virtualbox) Slackware Linux XFCE (via Virtualbox) DOS 5.0 (via DOSbox) 
MonitorMonitorMonitorKeyboard
LG 47LH40 Acer G276HL Gbd Acer G276HL Gbd Unicomp Classic 104 Black Buckling Spring PS2 
PowerCaseMouseMouse Pad
Silverstone OP1000-E Modded Thermaltake Armor VA8003BWS Logitech G500 Massive generic black foam mat 
AudioAudioAudioAudio
Creative Sound Blaster X-Fi Titanium Fatal1ty C... Denon AVR-1910 Polk Audio Monitor 40 Polk Audio Monitor 30 
AudioAudioAudioAudio
Polk Audio CS1 Polk Audio PSW10 Jamo C400SUR Plantronics Gamecom 377 
AudioOtherOtherOther
LG HBM-235 Genovation ControlPad 683 Canon Imageclass MF4450 12" Dual White Cold Cathode Kit x3 
OtherOtherOtherOther
Microsoft Strategic Commander UPEK Eikon Digital Privacy Manager Logitech G27 Playseat Revolution (NASCAR) 
OtherOtherOtherOther
Playseat Revolution Gearshift Holder Sony DualShock 3 Microsoft Lifecam VX-1000 D-Link DBT-120 
OtherOther
APC SMT1500 HP Photosmart 3210xi All-in-One 
CPUMotherboardGraphicsRAM
Intel Core 2 Duo T7700 Merom Toshiba ISRAA 1.0 (Socket 479) ATI Mobility Radeon HD2600 modded CCC 10.6 OCZ2MV6674GK 
Hard DriveHard DriveOptical DriveCooling
Hitachi Travelstar 7K500 HD20500 Western Digital Caviar Blue (WD6400BEVT-22A0RT0) Matshita DVD-RAM UJ-850S ATA Stock heatpipe system 
CoolingOSOSOS
Thermaltake Massive23 CS Windows 7 Home Premium x64 SP1 Windows XP Home x64 SP3 (via Virtualbox) DOS 5.0 (via DOSbox) 
MonitorKeyboardPowerCase
17.0" Diagonal Widescreen WSXGA+ Internal only 19 V, 6.32 A Stock 17" Satellite shell (8.5 lbs) 
MouseMouse PadAudioAudio
Logitech G500 Small generic black foam mat HP Thin USB Powered Speakers Fiio E5 Headphone Amplifier 
AudioOtherOther
Griffin iTrip P1141 Microsoft GPS 168 Toshiba Backpack PA1366U-1NCS 
CPUMotherboardGraphicsRAM
AMD Athlon XP-M 2500+ Barton Hewlett-Packard 0024 ATI Mobility Radeon IGP-320M Crucial CT6464X265.16FG 
Hard DriveOptical DriveCoolingOS
Toshiba MK4021GAS Toshiba SD-R2512 Stock heatpipes Windows XP Home SP3 
MonitorKeyboardPowerCase
15.0" XGA TFT Internal only 18.5 V, 4.9 A Stock 15" Pavilion Shell (8 lbs) 
MouseMouse PadAudioOther
Logitech MX510 Gaming Optical Generic gel-based green Internal Altec Lansing only Targus PAU10KU 
OtherOther
D-Link DWL-G650M Generic black messenger-style bag 
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