Overclocking GFX card and CPU

[navino87]

Hi guys,

I use :
BIG geforce 6600 gfx card with 256 mb VRAM
AMD Athlon 64 3000+ 1.8 ghz prosy
ASUS A8n-e Mobo

I wanna overclock my gfx card n prosy... I dono anything abt overclocking... So, please help me out...

Thanks in advance

[dOm1naTOr]

go to bios and increase the processor bus clocks from stock 200 to some 220nd try to boot. Keep the multiplier at default 9x.
if it boots normally into windows, restart again nd increase again by small values, say 3~4 mhz more and try to boot at each clocks.

And when u starts finding it to be unstable, reset the bios with juper trick and set the last gud overclocked clock that worked fine.

And also try some apps like HOT CPU tester free and see if the temps get high.
Also clean the cpu heatsink and fan to make sure it runs cool.

U can surelly get 2.4Ghz for sure and ive seen the old 3000+ even close to 3GHz stable on many systems.

But for that u need to have gud quality ram modules also. If ur ram is weak, then set the ram speed as 333 Mhz as that too is overclocked automatically with the cpu bus.
as u see when procy runs at 2.4 from 1.8, the cpu clocks will be 266. So ram wud be oced to 533 mhz!! from 400. So set it to 333 nd after oc it wud hit some 450 and it can do it.

BTW me too have the same board mate and its rock solid for ocing. ive hit 2.9Ghz on my X2 4200+ on it.

[john_the_ultimate]

Max for 3000+ would be 2.5GHz with stock cooling. A8N-E is an excellent board for overclocking. For 3GHz o'c you will need a 3rd party cooler. Also try to keep the load temps below 60c at any cost.
For stability test use orthos. http://sp2004.fre3.com/beta/beta2.htm

[navino87]

I use transcend 2x512mb ddr 400 ram. Wat should i do now?

BTW, I checked my bios... I dono how 2 handle with OC as iam a newbie... Think there are 2 menus where the overclocking takes place, the dram submenu in the cpu menu and the jumprefree setting menu... so, Which 1 to handle with?

In BIOS I went 2 Advanced -> Jumper free configuration

OverClock Profile - (AUTO, manual, standard, A.I.O overclock, AI N.O.S) Auto is the default option... To which i should change?
OverClock option - disabled
N.O.S Option - disabled
cpu frequency - 200.0
pci express clock - 100 mhz
ddr voltage - auto
cpu multiplier - auto
cpu voltage - auto
pci clock sync mode - auto

Wat are the other info required???

Please help me how to OC in step by step manner.

[navino87]

Here Is the detailed Summary of my system(CPU, RAM, mobo, chipset, bios n GFX card) :



Please help me out

[navino87]

some1 please guide me

[entrana]

u can only overclock ur cpu through the bios. if it does not have an option then u cant. for gfx try rivatuner

[navino87]

I tried OCing my CPU n here is the result :

multiplier - 9x
DDR voltage, CPU voltage - auto

First changed cpu frequency to 220 - It was stable
next changed cpu frequency to 230 - It was stable
next changed cpu frequency to 234 - Not stable

Type: Blend - stress CPU and RAM Min: 8 Max: 4096 InPlace: No Mem: 767 Time: 15
CPU: 2106MHz FSB: 234MHz [234MHz x 9.0 est.]
3/10/2008 12:47 PM
Launching 1 thread...
1:Using CPU #0
1:Beginning a continuous self-test to check your computer.
1ress Stop to end this test.
1:Test 1, 4000 Lucas-Lehmer iterations of M19922945 using 1024K FFT length.
1:FATAL ERROR: Rounding was 0.5, expected less than 0.4
1:Hardware failure detected, consult stress.txt file.
1:Torture Test ran 0 minutes 12 seconds - 1 errors, 0 warnings.
1:Execution halted.

next changed cpu frequency to 230 - not stable

Type: Blend - stress CPU and RAM Min: 8 Max: 4096 InPlace: No Mem: 767 Time: 15
CPU: 2070MHz FSB: 230MHz [230MHz x 9.0 est.]
3/10/2008 12:56 PM
Launching 1 thread...
1:Using CPU #0
1:Beginning a continuous self-test to check your computer.
1ress Stop to end this test.
1:Test 1, 4000 Lucas-Lehmer iterations of M19922945 using 1024K FFT length.
1:FATAL ERROR: Rounding was 0.5, expected less than 0.4
1:Hardware failure detected, consult stress.txt file.
1:Torture Test ran 3 minutes 10 seconds - 1 errors, 0 warnings.
1:Execution halted.

Now Stable @ 225

Is this the max tat i can OC???

Wat should i do now???

[navino87]

iam currently @ cpu frequency - 270.0 @ 1.500v with max temp of 57*c... Stability checked...

Here goes my settings :

CPU Configuration ->

cool n quit - disabled (enabled)
Hyper Transport Frequency - 4x (default)

DRAM Configuration -->

Timing mode - manual (auto)
memclock index value - 333mhz (400mhz)
CAS# latency (Tcl) - 2.5
min RAS# active time (Tras) - 8T
RAS# to CAS# delay (Trcd) - 3T
Row precharge time (Trp) - 3T
Row cycle time (Trc) - 11T
Row refresh cyc time (Trfc) - 24T
Read to write time (Trwt) - 4T
Write recovery time (Twr) - 3T
1T/2T memory timing - 1T (2T)
s/w DRAM over 4G remapping - Enabled
h/w DRAM over 4G remapping - Enabled

Jumper free configuration - >

OverClock Profile - Manual (auto)
cpu frequency - 270.0 (200.0)
pci express clock - 100 mhz
ddr voltage - auto
cpu multiplier - x9 (auto)
cpu voltage - 1.500 (auto)
pci clock sync mode - auto

As iam using stock cooler i dont wanna go further

Here r the benchmark result Of my CPU n RAM :

Before :

Everest Ultimate :


memory read : 5994 mb/s
memory write : 4099 mb/s
memory copy : 4361 mb/s
memory latency : 56.1 ns
CPU queen : 3158
CPU photoworxx : 10058
CPU zlib : 10624 kb/s
CPU AES : 2340
FPU julia : 1527
FPU mandel: 869
FPU sinjulia : 2396

PC Mark 05 :


CPU score : 2512
memory score : 3248

File Compression 6.7 MB/s
File Decompression 103.8 MB/s
File Encryption 32.9 MB/s
File Decryption 30.0 MB/s
Image Decompression 19.9 MPixels/s
Audio Compression 1967.5 KB/s
File Compression 3.4 MB/s
File Encryption 16.9 MB/s
File Decompression 26.9 MB/s
File Decryption 7.8 MB/s
Audio Decompression 432.2 KB/s
Image Decompression 5.0 MPixels/s
Memory Read - 16 MB 5511.3 MB/s
Memory Read - 8 MB 5561.6 MB/s
Memory Read - 192 KB 7235.9 MB/s
Memory Read - 4 KB 21798.0 MB/s
Memory Write - 16 MB 3801.5 MB/s
Memory Write - 8 MB 3716.7 MB/s
Memory Write - 192 KB 5492.9 MB/s
Memory Write - 4 KB 17257.8 MB/s
Memory Copy - 16 MB 4380.4 MB/s
Memory Copy - 8 MB 4516.1 MB/s
Memory Copy - 192 KB 3500.7 MB/s
Memory Copy - 4 KB 9110.4 MB/s
Memory Latency - Random 16 MB 10.2 MAccesses/s
Memory Latency - Random 8 MB 11.4 MAccesses/s
Memory Latency - Random 192 KB 110.5 MAccesses/s
Memory Latency - Random 4 KB 601.7 MAccesses/s

Vista :


CPU : 4.3
RAM : 4.5

After :

Everest Ultimate :


memory read : 6689 mb/s
memory write : 6686 mb/s
memory copy : 5582 mb/s
memory latency : 43.9 ns
CPU queen : 4243
CPU photoworxx : 14154
CPU zlib : 14325 kb/s
CPU AES : 3144
FPU julia : 2050
FPU mandel: 1167
FPU sinjulia : 3222

PC Mark 05 :


CPU score : 3355
memory score : 4444

File Compression 9.0 MB/s
File Decompression 139.3 MB/s
File Encryption 44.5 MB/s
File Decryption 39.5 MB/s
Image Decompression 26.8 MPixels/s
Audio Compression 2656.5 KB/s
File Compression 4.8 MB/s
File Encryption 22.0 MB/s
File Decompression 36.1 MB/s
File Decryption 10.1 MB/s
Audio Decompression 544.6 KB/s
Image Decompression 6.7 MPixels/s
Memory Read - 16 MB 6466.9 MB/s
Memory Read - 8 MB 6465.0 MB/s
Memory Read - 192 KB 9567.3 MB/s
Memory Read - 4 KB 30372.0 MB/s
Memory Write - 16 MB 6373.2 MB/s
Memory Write - 8 MB 6382.7 MB/s
Memory Write - 192 KB 7698.6 MB/s
Memory Write - 4 KB 23691.2 MB/s
Memory Copy - 16 MB 6298.2 MB/s
Memory Copy - 8 MB 6295.7 MB/s
Memory Copy - 192 KB 4678.1 MB/s
Memory Copy - 4 KB 12551.0 MB/s
Memory Latency - Random 16 MB 12.9 MAccesses/s
Memory Latency - Random 8 MB 14.6 MAccesses/s
Memory Latency - Random 192 KB 148.1 MAccesses/s
Memory Latency - Random 4 KB 807.9 MAccesses/s

Vista :


CPU : 4.5
RAM : 4.5

[john_the_ultimate]

Check the stability with prime95/orthos and rthdribl (Real-Time High Dynamic Range Image-Based Lighting) http://www.daionet.gr.jp/~masa/rthdribl/
These will max out your cpu as well as gfx card, in other words max out your system recources.
The machine would crawl in terms of performance but if it is still running after say 30 minutes with no error and also with cpu and gfx temps under limit, then you can say that the overclock is stable.

[navino87]

i checked stability using prime95 n orthos for nearly 10 hours n my system was stable...

[dOm1naTOr]

Once when i reached 2.9Ghz on my X2 939 4200+, i reduced the multiplier from 11 to 10 and crancked up the cpu frequency.
And the quality of memory modules too affect the oc potential. My transcent DDR 400 was easily ocable to 480Mhz @ 3-3-3-5
and do reduct the HT frequency. It wont reduce the performance much, but helps gain more stability.
And if u have gud memory, then u can slightly increase memory voltage also and memory can attain higher clocks w/o loosing stability.

[gapchoo009]

if u buy asus p5k premium motherboard . there is a p5k book it describes overclocking in details but the cost of board is around 14,500/-

[mayanksharma]

^^why would he want that, when overclockers are already here to explain their best!!