ECS K7S5A : XP 1800+ can't work under 133 FSB. Help!

[jbahseng]

I just bought an AMD XP 1800+ from the for sale forum and I just got it this evening. Well, the seller just put the cpu in an oem plastic case and shipped it in an envelope. And some of the pins on the cpu were bented and the cpu can't fix into the socket 462 because of the bented pins. After spending 45 mins to straighten up the pins, i finally got it fix into the socket but i can't get the cpu to work at 1.53 GHz (133 FSB). The computer will lockup after the memory scan or during the windows load up if i set the FSB at 133 MHz. I'd to settle down to 100 FSB and the cpu works at 1.15 GHz (100 FSB) with no problem. I'd try to format and reinstall win 98 se, set the FSB as 133/100 (I'm using crucial 256 mb PC 133 @ CAS2), flash the motherboard bios (ECS K7S5A) and have no luck at all. The cpu simply don't work under 133 Mhz. What can i do to make the cpu work at 133 FSB? I don't think it's the motherboard because i'd used a 1.4 GHz @ 133 FSB with no problem. I might be wrong but i don't have an extra motherboard to test it. Here is my setup :

AMD XP 1800- (1.15 GHz @ 100 FSB )
Crucial 256 mb PC 133 Sdram (CAS 2)
ECS K7S5A (unknown rev, can't find it on the board, had flashed the newest bios)
Asus 16 mb tnt2 Vanta
Seagate Barracuda 4 80 GB
on board sound
Linksys NIC
Enermax 350 watt (fc)

edit : Result added

133/133 FSB with L1 Internal cache and L2 external cache enable == > 1.53 GHz
lockup when the windows start

133/133 FSB with L1 Internal cache enable and L2 external cache disable == > 1.53 GHz
lockup when the windows start

133/133 FSB with L1 and L2 cache disable == > 1.53 GHz
able to get into windows, but it's very slow and getting bsod

100/133 FSB with L1 and L2 cache enable == > 1.15 GHz
no problem at all, surf net and play rtcw for 3 hours with no problem.

 

[DAPUNISHER]

Considering the circumstances, your hardware specs, and your previous success with the board, I'd suggest clearing the CMOS, Trying optimal bios settings, making certain that you have good contact between the HS/F and the CPU, that the HS/F is sufficient to the task, then maybe you could consider doing the chipset mod and adding a blue orb or something similar to replace the heatsink and crappy double-sided tape that's on it because I've been seeing more and more posts where this is credited for solving the 133/133 issue and for others, allowing 150/150+ to be obtained. The only reason I'm not immediately leaning towards a damaged/faluty CPU is that I've had a half dozen CPUs or so over the last 12-18months with bent pins and after straightening, none of them exhibited any problems. BTW, the rev. number is usually a little white sticker on the corner by the PCI/AMR slot.