• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

My Phenom X3 720/DDR2 overclocking [need some advice]

Joined
Apr 7, 2009
Messages
332 (0.10/day)
Likes
14
Processor Intel® Core™ i5-2500K (4.6GHz @ 1.28-1.33v)
Motherboard ASRock Z68 Pro3 Gen3
Cooling Prolimatech Megahalems Rev.C + Blue Vortex 140mm
Memory Kingston HyperX Fury White (2x8GB, DDR3-1866, 10-11-10-30, 1.5v)
Video Card(s) MSI GTX 970 Gaming
Storage Crucial C300 128GB, WD Green 2TB
Display(s) BenQ XL2420T
Case Antec Twelve Hundred
Audio Device(s) Onboard Realtek audio
Power Supply Corsair HX 650W
Software Win7 Ultimate (64-bit)
#1
Hello everyone!

My system is getting "outdated" month by month so I thought about overclocking the CPU for now (my 4870 with custom cooling and reference clocks will be getting this attention soon too).


Here's my adventure so far neatly in an Excel screenshot:



Basically I'm just giving the CPU a 3 hour OCCT test for now and will stick with the highest overclock on daily basis to see if it's stable for use.
I'm only increasing the multiplier and I think I hit the ceiling with 17,5x, now I think I need to experiment with by adding FSB. I'm not a big fan of stressing other components(northbridge, RAM, HT Clock) to attain higher speeds but I still want to try it :D

My question is about the RAM. What would be the best thing to do if you would find out that your memory can't do higher clock speeds? Lower the timings? Play with RAM voltage? Lower the multiplier?
I really have no experience in playing with RAM, and in my case what tactics would you guys suggest I employ here to reach the highest clock speed possible? What works the best most of the time?

Thank you in advance :respect:

Gonna leave my PC @ OCCT testing and jump on laptop now :)
 
Joined
Apr 7, 2009
Messages
332 (0.10/day)
Likes
14
Processor Intel® Core™ i5-2500K (4.6GHz @ 1.28-1.33v)
Motherboard ASRock Z68 Pro3 Gen3
Cooling Prolimatech Megahalems Rev.C + Blue Vortex 140mm
Memory Kingston HyperX Fury White (2x8GB, DDR3-1866, 10-11-10-30, 1.5v)
Video Card(s) MSI GTX 970 Gaming
Storage Crucial C300 128GB, WD Green 2TB
Display(s) BenQ XL2420T
Case Antec Twelve Hundred
Audio Device(s) Onboard Realtek audio
Power Supply Corsair HX 650W
Software Win7 Ultimate (64-bit)
#2
17.5x205 and my system is BSODing like crazy. For some reason if I changed the memory multiplier from 5.33 to 4.00 it would not boot at all (had to clear CMOS).
 
Joined
Mar 28, 2010
Messages
239 (0.08/day)
Likes
43
Location
Ohio, USA
System Name The Black Mamba
Processor AMD FX-8150 @ 4.8 GHz + 2.5 GHz CPUNB
Motherboard ASUS Crosshair V Formula
Cooling Custom water, HeatKiller 3.0 LT, Swiftech MCR320, 3 GentleTyphoon 1850 RPM, OCZ HydroPulse 800
Memory Super Talent 2000 CAS 7 @ 2100 7-7-7-21 1.70v / GSKill Pi 2133 CAS 7 @ 2250 7-10-7-27
Video Card(s) 2x Sapphire Vapor-X HD5770's @ stock
Storage 2x 640GB Caviar Black in RAID 0
Display(s) 22" ASUS something + 20" Sceptre something
Case Lian-Li "Lancool" PC-K62
Power Supply XFX Black Edition 850w 80 Plus Silver
Software Windows 7 Pro
Benchmark Scores Too many to list ;D
#3
Common clocks for a 720.

Not sure about the memory multiplier, that should have been okay unless the BIOS defaulted to some stupidly tight timings.
 
Joined
Oct 12, 2009
Messages
283 (0.09/day)
Likes
81
Location
Zagreb, Croatia
Processor Phenom II X3 720 BE @ 3.15 GHz
Motherboard Gigabyte MA790X-UD4
Cooling Zalman CNPS10X Optima
Memory Corsair XMS2, 2x2 GB DDR2, 800 MHz, CL5
Video Card(s) Asus R9 270X DirectCu II
Storage Caviar Black 500 GB & Caviar Green 1 TB
Display(s) Dell U2311H (23'' IPS)
Case Gigabyte GZ-X5
Power Supply Corsair VX550
Software Win 7 Pro 64-bit
#4
For some reason, I had a lot better luck with OCing via bus speed change, and not with multi.
Also, keep in mind that OCing Northbridge will speed up your L3 cache and increase performance in some programs too (biggest gain I've seen was in Civ5 and Starcraft 2)

At the moment, I'm running 14x235 (3290 MHz) at 1.344 V (+0.025), stable after 4 hours of Prime95, temps under 50°C at max load (reported by HWMonitor)
And, my NB is at 2350 MHz, RAM at 940 MHz (CL5)
 
Joined
Apr 7, 2009
Messages
332 (0.10/day)
Likes
14
Processor Intel® Core™ i5-2500K (4.6GHz @ 1.28-1.33v)
Motherboard ASRock Z68 Pro3 Gen3
Cooling Prolimatech Megahalems Rev.C + Blue Vortex 140mm
Memory Kingston HyperX Fury White (2x8GB, DDR3-1866, 10-11-10-30, 1.5v)
Video Card(s) MSI GTX 970 Gaming
Storage Crucial C300 128GB, WD Green 2TB
Display(s) BenQ XL2420T
Case Antec Twelve Hundred
Audio Device(s) Onboard Realtek audio
Power Supply Corsair HX 650W
Software Win7 Ultimate (64-bit)
#5
Oh we got almost identical systems Wyverex :)

What's your memory settings in BIOS? (multiplier, timings, voltage)
 

brandonwh64

Addicted to Bacon and StarCrunches!!!
Joined
Sep 6, 2009
Messages
19,527 (6.38/day)
Likes
6,950
Location
Chatsworth, GA
System Name The StarCrunch Defender! | X58 Cruncher!
Processor I7 6700K @ STOCK | Intel I7-920
Motherboard Gigabyte Z170X-UD5 | Alienware MS-7543 X58
Cooling Corsair A70 Push/Pull | Corsair H50
Memory Crucial Ballistix DDR4 2400 MHz | Pereema 3x2GB DDR3
Video Card(s) Gigabyte Gaming G1 GTX 1070 | Gigabyte 7970 3GB
Storage 2x Samsung Pro 256GB M.2 SSD's in Raid 0 | 4TB Western Digital SATA drive
Display(s) ViewSonic VG2227wm 1080P | OLD viewsonics
Case NZXT Tempest 410 Elite | NZXT Source 210
Audio Device(s) Onboard
Power Supply Corsair 750TX | Enermax Liberty 500W
Mouse MX518 | MX502
Keyboard TESORO Mechanical | ANZO Mechanical
Software Windows 10 Pro on both
#6
Have you tried unlocking your 720 to a quad?
 
Joined
Oct 12, 2009
Messages
283 (0.09/day)
Likes
81
Location
Zagreb, Croatia
Processor Phenom II X3 720 BE @ 3.15 GHz
Motherboard Gigabyte MA790X-UD4
Cooling Zalman CNPS10X Optima
Memory Corsair XMS2, 2x2 GB DDR2, 800 MHz, CL5
Video Card(s) Asus R9 270X DirectCu II
Storage Caviar Black 500 GB & Caviar Green 1 TB
Display(s) Dell U2311H (23'' IPS)
Case Gigabyte GZ-X5
Power Supply Corsair VX550
Software Win 7 Pro 64-bit
#7
Oh we got almost identical systems Wyverex :)
Hehe, indeed. And it still serves me quite nicely :)

What's your memory settings in BIOS? (multiplier, timings, voltage)
My RAM becomes unstable at anything over 1020 MHz, several RMAs did not help. So, I keep it between 900 MHz and 1000 MHz.
It is specified to run at:
  • Voltage: 2.1 V
  • Frequency: 1066 MHz
  • Latency timings: 5-5-5-15-22

but since I can't get it to run over 1020 MHz I keep it at:
  • Voltage: 1.9 V
  • Frequency: 4x bus, 940 MHz at the moment
  • Latency timings: default for 800 MHz memory - 5-5-5-18-23

Have you tried unlocking your 720 to a quad?
Dunno if you asked me or Ozpa, but I'll answer anyway :p Tried unlocking, won't unlock in my mobo :(
 
Joined
Apr 7, 2009
Messages
332 (0.10/day)
Likes
14
Processor Intel® Core™ i5-2500K (4.6GHz @ 1.28-1.33v)
Motherboard ASRock Z68 Pro3 Gen3
Cooling Prolimatech Megahalems Rev.C + Blue Vortex 140mm
Memory Kingston HyperX Fury White (2x8GB, DDR3-1866, 10-11-10-30, 1.5v)
Video Card(s) MSI GTX 970 Gaming
Storage Crucial C300 128GB, WD Green 2TB
Display(s) BenQ XL2420T
Case Antec Twelve Hundred
Audio Device(s) Onboard Realtek audio
Power Supply Corsair HX 650W
Software Win7 Ultimate (64-bit)
#8
Have you tried unlocking your 720 to a quad?
Oh sorry I forgot to reply. I haven't tried it, I don't really need it at the moment either :p


Wyverex: The motherboard doesn't want to set everything the EPP profile says it to and did you try setting everything manually to specified timings? (multiplier, voltage, timings) That's what I did and it works. Note that one of my sticks started spewing errors in memtest about 4 months in so I had to RMA them. The new set I got after still works to this day great (I noticed many many users complain about this exact same set of momery being DOA and within 1-4 months dead on newegg feedback).

I might try running my memory at the same settings you do.
 
Joined
Mar 17, 2010
Messages
196 (0.07/day)
Likes
32
Location
Serbia
System Name Zverkica
Processor Ryzen 5, 1600
Motherboard Gigabyte AB-350-Gaming 3
Cooling LC Power Cosmo Cool LC-CC-120
Memory 16GB Kingston Hyper X Predator 3200 MHz
Video Card(s) PowercColor 280X TurboDuo
Storage SSD KIngston UV400, 480GB, WD 1002FAEX and some other Samsung drives
Display(s) Samsung U28H750 UHD Quantum Dot and Dell U2312HM eIPS
Case Fractal Design Define R4 Arctic White
Audio Device(s) GENIUS SW-2.1 1800: GENIUS SW-2.1 1250
Power Supply Thermaltake Paris 650 Watt - 80 Plus Gold PSU
Mouse Razer Death Adder Elite
Keyboard ReDragon K577 RGB mechanical keyboard
Software Windows 10 Pro
#9
I think you would gain more speed by adding another dual channeler. You could probably find some cheap used DDR2. I have 4x1GB 800MHz DDR 2 and WEI for memory is 7.5, highest of all others in my system. When I remove one dimm it drops on 5.8...
 

JrRacinFan

Served 5k and counting ...
Joined
Mar 17, 2007
Messages
19,666 (4.96/day)
Likes
4,754
Location
Youngstown, OH
System Name Gamer :Server and Android BuildBox
Processor i7 3930k: Xeon e5-2660
Motherboard MSI X79A-GD45 Plus : Generic
Cooling Liqid cooled: CM 212+
Memory Klevv Neo 2x4Gb 1866 @ 1600 CL9 : 2x8Gb Vengeance 1600 cl9
Video Card(s) EVGA GTX 950 SC : XFX R5 220
Storage HGST 2TB + 480GB OCZ Trion 150 : Seagate 1TB SSHD + WD 3TB + 2x HGST 2TB
Display(s) ViewSonic VX2457-MHD 23.6" : headless
Case DIYPC D480-W White Window : Bitfenix Comrade
Audio Device(s) nVidia HDMI : Onboard
Power Supply EVGA 500b : Tt 775W Modular
Software Windows 7 Ultimate+Manjaro 16.06: Ubuntu Server 16.10
#10
@Brandon
You just got really lucky with your old one. :p

@Ozpa
Your chart seems to be near spot dead on for my 720 Black as well. Big thank you because it will also help me clock it. Right now I have it running dual cores @ 3.3Ghz, as I don't need the horsepower in an HTPC.