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PCI-E clock question.

post #1 of 6
Thread Starter 
Hi guys,

My motherboard have a well know fsb wall at 417MHz.However their is a solution which overcomes this wall upto a limit.If i set my PCI-E clock to 104 MHz,"Magically" my fsb wall is raised to 435!

My problem is that setting the PCI-E to 104 renders my GPU OC unstable.I am stable at 1000mhz with only 1.25v with 100 MHz PCI-E but with 104 MHz PCI-E i need 1.28v to be stable at 1000 MHz.

I am going to test stability at 980MHz.With 100 MHz PCI-E,i am stable at 980 with 1.2v.I will test 980 stability with PCI-E set to 104 MHz and post the results shortly.

I need your advice on the matter.Should i stay with 100 MHz?Or go with 104 For the extra CPU OC?


Apart form high voltage that i have to put,will the 104 MHz PCI-E shorten the GPU life?

Edit:
Okay i have tested with PCI-E set to 104,Its stable 980 @ 1.2v!
I have tested(raped) with furmark + GPUtool for 1 hour.Not a single artifact!MAX temp 76C.
I am leaning towards PCI-E @104 unless someone a nice reason for not to!
Edited by pteek - 8/3/11 at 7:50pm
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post #2 of 6
I'd stick with 100 personally.
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post #3 of 6
Max FSB or reference clock is often influenced by PCI-E clock.

104Mhz should be safe for most stuff but much past it you risk hard drive corruption and having PCI-E devices failing to work correctly.
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post #4 of 6
Yeah...stick with a 100....personal opinion.
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post #5 of 6
Thread Starter 
Its 2vs2 now.I am checking stability with 104.Need more opinions.
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Ivy Build.
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CPUMotherboardGraphicsRAM
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[CM] Hyper 212 EVO [Microsoft] Windows 7 Home premium Not decieded Generic 
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[Corsair] TX850 [NZXT] Phantom 410 [CM] Strom spwan 
CPUMotherboardGraphicsRAM
[Intel] Core2 Duo E6750 @ 3.48 GHz [Biostar] TP43E Combo [Sapphire] Radeon HD 6790 @ (980/1250/1.2v) [Dynet] DDRII 2+1 GB @870 MHz 5-5-5-15 
Hard DriveOptical DriveOSMonitor
[Hitachi/Seagate] Deskstar/Barracuda 250/160 GB [Samsung ] Write Master [Microsoft] Windows 7 Ultimate 32-bit [Samsung] S22B370H 
KeyboardPowerCaseMouse
[HCL] PS/2 [Corsair] CX-500 [UMAX] ARMOR UC 9072 [QLX] CHEAP 
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Table [Lenovo] P950 [Philips] SHM 1900 
CPUMotherboardGraphicsRAM
[Google] Shinob 100 cores @ 999 THz [Google] GL99P-80 [Google] Radia UHDX 790 [Google] Killer 256 GB@ 170 THz 
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[Google] Quantom ∞ GB @ 100 Tbit/s [Google] Rainbow-ray™ Ulta 560 [Google] Real™ OS [Google] Sorround HMD/DOTB 
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post #6 of 6
Don't go above 103. 100 is your best bet, obviously.

This should really be in the Intel section, tbh.
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